A man picks up a 50 kilogram block and carries it up a flight of stairs 10 meters high. He then carries the block back down the stairs and places the block in its original position. What is the NET work done on the block? w) 1,000 joules x) 750 joules y) 500 joules z) 0 joules

A man picks up a 50 kilogram block and carries it up a flight of stairs 10 meters high. He then carries the block back down the stairs and places the block in its original position. What is the NET work done on the block? w) 1,000 joules x) 750 joules y) 500 joules z) 0 joules
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Answer :

ANSWER: Z -- 0 JOULES
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Related questions

A worker lifts a 10 kilogram block a vertical height of 2 meters. The work he does on the block is: w) 5 Joules x) 20 Joules y) 49 Joules z) 200 Joules

Description : A worker lifts a 10 kilogram block a vertical height of 2 meters. The work he does on the block is: w) 5 Joules x) 20 Joules y) 49 Joules z) 200 Joules

Last Answer : ANSWER: Z -- 200 JOULES

A car with a mass of 1000 kilogram is moving at a speed of 10 meters per second. The kinetic energy of the car is: w) 100 Joules x) 5000 Joules y) 10,000 Joules z) 50,000 Joules

Description : A car with a mass of 1000 kilogram is moving at a speed of 10 meters per second. The kinetic energy of the car is: w) 100 Joules x) 5000 Joules y) 10,000 Joules z) 50,000 Joules

Last Answer : ANSWER: Z -- 50,000 JOULES

A 10 kilogram object falls from a cliff 100 meters high. At the midpoint of its fall its total energy is: w) 2450 Joules x) 4900 Joules y) 10,000 Joules z) 20,000 Joules

Description : A 10 kilogram object falls from a cliff 100 meters high. At the midpoint of its fall its total energy is: w) 2450 Joules x) 4900 Joules y) 10,000 Joules z) 20,000 Joules

Last Answer : ANSWER: Y -- 10,000 JOULES

As a 10 kilogram mass on the end of a spring passes through its equilibrium position, the kinetic energy of the mass is 20 joules. The speed of the mass is: w) 2.0 meters per second x) 4.0 meters per second y) 5.0 meters per second z) 6.3 meters per second

Description : As a 10 kilogram mass on the end of a spring passes through its equilibrium position, the kinetic energy of the mass is 20 joules. The speed of the mass is: w) 2.0 meters per second x) 4.0 meters per second y) 5.0 meters per second z) 6.3 meters per second

Last Answer : ANSWER: W -- 2.0 METERS PER SECOND

A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in 0.1 second. The average force of the car on the wall during impact is: w) 10 Newtons x) 1000 Newtons y) 10,000 Newtons z) 100,000 Newtons

Description : A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in 0.1 second. The average force of the car on the wall during impact is: w) 10 Newtons x) 1000 Newtons y) 10,000 Newtons z) 100,000 Newtons

Last Answer : ANSWER: Z -- 100,000 NEWTONS

A 10 kilogram ball falls from a height of 5 meters and rebounds from the floor to a height of 3 meters. The energy lost by the ball is: w) 20 joules x) 98 joules y) 196 joules z) 294 joules

Description : A 10 kilogram ball falls from a height of 5 meters and rebounds from the floor to a height of 3 meters. The energy lost by the ball is: w) 20 joules x) 98 joules y) 196 joules z) 294 joules 

Last Answer : ANSWER: Y -- 196 JOULES

A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing on the locomotive for each 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

Description : A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing ... 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

Last Answer : ANSWER: W -- 0 JOULES

A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. If she bends down and scoops up a 20 kilogram child standing on the ice, what will be the final speed of the skater and the child? w) 1 meter per second x) 3 meters per second y) 5 meters per second z) 7 meters per second

Description : A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. If she bends down and scoops up a 20 kilogram child standing on the ice, what will be the final speed of the skater ... w) 1 meter per second x) 3 meters per second y) 5 meters per second z) 7 meters per second

Last Answer : ANSWER: Y -- 5 METERS PER SECOND

An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second

Description : An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second

Last Answer : ANSWER: X -- 2 METERS PER SECOND

A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Description : A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Last Answer : ANSWER: X -- 0.5 METERS PER SECOND

A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 meters per second. The change in the momentum of the ball is: w) 0.1 kilogram-meters per second x) 0.4 kilogram-meters per second y) 0.5 kilogram-meters per second z) 0.9 kilogram-meters per second

Description : A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 meters per second. The ... .4 kilogram-meters per second y) 0.5 kilogram-meters per second z) 0.9 kilogram-meters per second

Last Answer : ANSWER: Z -- 0.9 KILOGRAM-METERS PER SECOND 

A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. What is the thrust on the spacecraft? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds

Description : A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. ... ? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds 

Last Answer : ANSWER: W -- 2,000 NEWTONS

A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Description : A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Last Answer : ANSWER: W -- 1,500 NEWTONS

The radiator of a room contains 10 kilogram of water. If the water gives off 50,000 calories of heat to the room, the drop in temperature of the water is: w) 1 degree Celsius x) 2 degrees Celsius y) 5 degrees Celsius z) 10 degrees Celsius

Description : The radiator of a room contains 10 kilogram of water. If the water gives off 50,000 calories of heat to the room, the drop in temperature of the water is: w) 1 degree Celsius x) 2 degrees Celsius y) 5 degrees Celsius z) 10 degrees Celsius

Last Answer : ANSWER: Y -- 5 DEGREES CELSIUS

When a 2 kilogram mass is suspended from a spring, the spring stretches 4 cm. The force constant of the spring is approximately:+ w) .5 newtons per meter x) 5 newtons per meter y) 50 newtons per meter z) 500 newtons per meter

Description : When a 2 kilogram mass is suspended from a spring, the spring stretches 4 cm. The force constant of the spring is approximately:+ w) .5 newtons per meter x) 5 newtons per meter y) 50 newtons per meter z) 500 newtons per meter

Last Answer : ANSWER: Z -- 500 NEWTONS PER METER

What is the DeBroglie wavelength of a 1,200 kilogram corvette traveling at a rate of 25 meters per second? Planck's constant is equal to 6.62 x 10-34 Joule-seconds. w) 5.3 x 10-32 meters x) 5.9 x 10-34 meters y) 2.1 x 10-38 meters z) 1.6 x 10-40 meters

Description : What is the DeBroglie wavelength of a 1,200 kilogram corvette traveling at a rate of 25 meters per second? Planck's constant is equal to 6.62 x 10-34 Joule-seconds. w) 5.3 x 10-32 meters x) 5.9 x 10-34 meters y) 2.1 x 10-38 meters z) 1.6 x 10-40 meters

Last Answer : ANSWER: Y -- 2.1 x 10-38 METERS

An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration due to gravity is 10 meters per second squared, the potential energy of the object relative to the surface of the earth is: w) 10 joules x) 20 joules y) 100 joules z) 250 joules e) none of the above

Description : An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration due to gravity is 10 meters per second squared, the potential energy of the object relative to the ... is: w) 10 joules x) 20 joules y) 100 joules z) 250 joules e) none of the above

Last Answer : ANSWER: Z -- 250 JOULES

A 10,000-watt motor operates an elevator weighing 5000 newtons. Assuming no frictional losses, how high is the elevator raised in 10 seconds. Is it raised: w) 2 meters x) 20 meters y) 50 meters z) 100 meters

Description : A 10,000-watt motor operates an elevator weighing 5000 newtons. Assuming no frictional losses, how high is the elevator raised in 10 seconds. Is it raised: w) 2 meters x) 20 meters y) 50 meters z) 100 meters

Last Answer : ANSWER: X -- 20 METERS

A machine having an efficiency of 50% does 500 joules of work. Which of the following is the work input? Is it: w) 500 joules x) 250 joules y) 1000 joules z) 2500 joules

Description : A machine having an efficiency of 50% does 500 joules of work. Which of the following is the work input? Is it: w) 500 joules x) 250 joules y) 1000 joules z) 2500 joules

Last Answer : ANSWER: Y -- 1000 JOULES

Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Description : Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Last Answer : ANSWER: W -- 2 METERS PER SECOND SQUARED

A kilocalorie is equal to one of the following. Is it equal to: w) 4.2 Joules x) 1000 Joules y) 4200 Joules z) 10,000 Joules

Description : A kilocalorie is equal to one of the following. Is it equal to: w) 4.2 Joules x) 1000 Joules y) 4200 Joules z) 10,000 Joules

Last Answer : ANSWER: Y -- 4200 JOULES

Suppose a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab. 105,840 Joules of potential energy are stored in the wrecking ball. Now the ball is dropped. When the ball is 6 meters above the concrete slab, what is it's potential energy in Joules?

Description : Suppose a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab. 105,840 Joules of potential energy are stored in the wrecking ball. Now the ball is dropped. When the ball is 6 meters above the concrete slab, what is it's potential energy in Joules? 

Last Answer : ANSWER: 52,920 JOULES

A 45 kilogram bicyclist on a 5 kilogram bicycle rides down a 50 meter high hill with her brakes partially on. Her speed at the bottom of the hill is 10 meters per second. How many kilojoules of heat were dissipated by the cyclist's brakes?

Description : A 45 kilogram bicyclist on a 5 kilogram bicycle rides down a 50 meter high hill with her brakes partially on. Her speed at the bottom of the hill is 10 meters per second. How many kilojoules of heat were dissipated by the cyclist's brakes?

Last Answer : ANSWER: 22.5 KILOJOULES or 22.0 KILOJOULES (based on 9.8 m/s2)

An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Description : An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Last Answer : ANSWER: 2 METERS

A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Description : A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Last Answer : ANSWER: X -- 50 NEWTONS

A child weighing 50 Newtons is on a swing. He goes from a minimum height of 0.2 meters to a maximum height of 1.5 meters. His maximum speed is closest to: w) 3 meters per second x) 5 meters per second y) 7 meters per second z) 9 meters per second

Description : A child weighing 50 Newtons is on a swing. He goes from a minimum height of 0.2 meters to a maximum height of 1.5 meters. His maximum speed is closest to: w) 3 meters per second x) 5 meters per second y) 7 meters per second z) 9 meters per second

Last Answer : ANSWER: X -- 5 METERS PER SECOND

The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds

Description : The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds

Last Answer : ANSWER: W -- 1.5 SECONDS

What is the wavelength in millimeters of a sound wave whose frequency is 35 KILOHERTZ. Assume the speed of sound is 350 METERS PER SECOND? w) 100 millimeters x) 1,000 millimeters y) 10 millimeters z) 1/10 millimeters

Description : What is the wavelength in millimeters of a sound wave whose frequency is 35 KILOHERTZ. Assume the speed of sound is 350 METERS PER SECOND? w) 100 millimeters x) 1,000 millimeters y) 10 millimeters z) 1/10 millimeters

Last Answer : ANSWER: Y -- 10 MILLIMETERS 

A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms

Description : A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms

Last Answer : ANSWER: X -- 2500 KILOGRAMS

What is the potential energy of a 10 kilogram cube 500 meters above the ground?

Description : What is the potential energy of a 10 kilogram cube 500 meters above the ground?

Last Answer : ANSWER: 49,000 JOULES (accept 50,000 joules, uses g = 10m/s2) 

Calculate the power output in horsepower of an 80-kg man that climbs a flight of stairs 3.8 m high in 4.0 s.  a) 744.8 hp  b) 0.998 hp  c) 746 hp  d) 1.998 hp Formula: Power = Fd/t = mgh/t F = W = mg d = h

Description : Calculate the power output in horsepower of an 80-kg man that climbs a flight of stairs 3.8 m high in 4.0 s.  a) 744.8 hp  b) 0.998 hp  c) 746 hp  d) 1.998 hp Formula: Power = Fd/t = mgh/t F = W = mg d = h

Last Answer : 0.998 hp

The speed of sound (at sea level) in air is: w) 340 meters per second x) 400 meters per second y) 500 meters per second z) 760 kilometers per second

Description : The speed of sound (at sea level) in air is: w) 340 meters per second x) 400 meters per second y) 500 meters per second z) 760 kilometers per second

Last Answer : ANSWER: W -- 340 METERS PER SECOND

A bullet is fired with a muzzle velocity of 1000 meters per second from a rifle clamped to a window 4.9 meters above ground level. Neglecting air resistance, the horizontal distance from the rifle at which the bullet will strike the ground is w) 4.9 meters x) 500 meters y) 1000 meters z) 4900 meters

Description : A bullet is fired with a muzzle velocity of 1000 meters per second from a rifle clamped to a window 4.9 meters above ground level. Neglecting air resistance, the horizontal distance from the rifle at which the bullet will strike the ground is w) 4.9 meters x) 500 meters y) 1000 meters z) 4900 meters

Last Answer : ANSWER: Y -- 1000 METERS

Which of the following distances in kilometers is closest to the diameter of the earth? w) 750 kilometers x) 2,750 kilometers y) 12,750 kilometers z) 127,500 kilometers

Description : Which of the following distances in kilometers is closest to the diameter of the earth? w) 750 kilometers x) 2,750 kilometers y) 12,750 kilometers z) 127,500 kilometers

Last Answer : ANSWER: Y -- 12,750 KILOMETERS 

Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is w) 0 Newtons x) 5 Newtons y) 20 Newtons z) 100 Newtons

Description : Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is w) 0 Newtons x) 5 Newtons y) 20 Newtons z) 100 Newtons

Last Answer : ANSWER: X -- 5 NEWTONS

A spring with a force constant of 100 Newtons per meter is loaded with a mass of 1.0 kilogram. The period of vibration of this system is: w) .03 seconds x) .06 seconds y) .31 seconds z) .63 seconds

Description : A spring with a force constant of 100 Newtons per meter is loaded with a mass of 1.0 kilogram. The period of vibration of this system is: w) .03 seconds x) .06 seconds y) .31 seconds z) .63 seconds

Last Answer : ANSWER: Z -- .63 SECONDS 

What is the hydrostatic pressure at the bottom of a pool 6 meters deep? w) 60,000 Newtons per meter squared x) 6,000 Newtons per meter squared y) 600 Newtons per meter squared z) 60 Newtons per meter squared

Description : What is the hydrostatic pressure at the bottom of a pool 6 meters deep? w) 60,000 Newtons per meter squared x) 6,000 Newtons per meter squared y) 600 Newtons per meter squared z) 60 Newtons per meter squared

Last Answer : ANSWER: W -- 60,000 NEWTONS PER METER SQUARED

If a sled has a constant acceleration of 2 meters per second squared and starts from rest, the distance in meters that it will have covered after 5 seconds is: w) 10 meters x) 20 meters y) 25 meters z) 50 meters

Description : If a sled has a constant acceleration of 2 meters per second squared and starts from rest, the distance in meters that it will have covered after 5 seconds is: w) 10 meters x) 20 meters y) 25 meters z) 50 meters

Last Answer : ANSWER: Y -- 25 METERS

In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the following conclusions. It was concluded that: w) the charge of an electron is negative x) the nucleus of a gold atom carries all its charge y) most of the mass of a gold atom is in its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS

A machine's output is 4000 joules and its frictional losses are 1000 joules. Which of the following is its efficiency? Is it: w) 25% x) 30% y) 75% z) 80%

Description : A machine's output is 4000 joules and its frictional losses are 1000 joules. Which of the following is its efficiency? Is it: w) 25% x) 30% y) 75% z) 80%

Last Answer : ANSWER: Z -- 80%

At zero degrees Celsius and one atmosphere (STP), the volume of a gas is 1,000 milliliters. If the temperature is increased to 25 degrees Celsius and the pressure is doubled, what is the new volume of the gas? w) 546 milliliters x) 500 milliliters y) 1,000 milliliters z) 273 milliliters

Description : At zero degrees Celsius and one atmosphere (STP), the volume of a gas is 1,000 milliliters. If the temperature is increased to 25 degrees Celsius and the pressure is doubled, what is the new volume of the gas? w) 546 milliliters x) 500 milliliters y) 1,000 milliliters z) 273 milliliters

Last Answer : ANSWER: W -- 546 MILLILITERS

A 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity. How much work has the girl done?

Description : A 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity. How much work has the girl done?

Last Answer : ANSWER: 2000 JOULES or 1960 JOULES

A Newton is equal to which of the following? w) kilogram-meter per second x) meter per second squared y) kilogram-meter per second squared z) kilogram per meter-second

Description : A Newton is equal to which of the following? w) kilogram-meter per second x) meter per second squared y) kilogram-meter per second squared z) kilogram per meter-second

Last Answer : ANSWER: Y -- KILOGRAM-METER PER SECOND SQUARED

The TOTAL energy of a vertically vibrating block attached to a spring is the same: w) only at those points above the equilibrium position x) only at the equilibrium position y) only at those points below the equilibrium position z) at all points in its motion

Description : The TOTAL energy of a vertically vibrating block attached to a spring is the same: w) only at those points above the equilibrium position x) only at the equilibrium position y) only at those points below the equilibrium position z) at all points in its motion

Last Answer : ANSWER: Z -- AT ALL POINTS IN ITS MOTION

The Superconducting Super Collider will produce collisions with an energy of: w) 40 joules x) 40 MeV y) 40 TeV z) 200 TeV

Description : The Superconducting Super Collider will produce collisions with an energy of: w) 40 joules x) 40 MeV y) 40 TeV z) 200 TeV

Last Answer : ANSWER: Y -- 40 TeV

The rate at which electrical energy is used is measured in w) volts x) amperes y) joules z) watts

Description : The rate at which electrical energy is used is measured in w) volts x) amperes y) joules z) watts

Last Answer : ANSWER: Z -- WATTS

Units commonly used for entropy are: w) kilograms per degree Kelvin x) Joules per degree Kelvin y) Newtons per Coulomb z) ergs

Description : Units commonly used for entropy are: w) kilograms per degree Kelvin x) Joules per degree Kelvin y) Newtons per Coulomb z) ergs

Last Answer : ANSWER: X -- JOULES PER DEGREE KELVIN

Electric current may be expressed in which one of the following units? w) coulombs/volt x) joules/coulomb y) coulombs/second z) ohms/second

Description : Electric current may be expressed in which one of the following units? w) coulombs/volt x) joules/coulomb y) coulombs/second z) ohms/second

Last Answer : ANSWER: Y -- COULOMBS/SECOND

The population of a city in 2000 is 50,000. The average increase in population over last 8 decades is 7500 and average incremental increase during 8 decades is 750. The population of the city based on incremental method, in the year 2020 will be (A) 55,000 (B) 60,500 (C) 66,500 (D) 72,500

Description : The population of a city in 2000 is 50,000. The average increase in population over last 8 decades is  7500 and average incremental increase during 8 decades is 750. The population of the city based  on incremental method, in ... (A) 55,000  (B) 60,500  (C) 66,500  (D) 72,500 

Last Answer : (C) 66,500

Continental shelves range in width from: w) 1,500 to 5,000 kilometers x) 1,500 to 3,000 kilometers y) 0 to 5,000 kilometers z) 0 to 1,500 kilometers

Description : Continental shelves range in width from: w) 1,500 to 5,000 kilometers x) 1,500 to 3,000 kilometers y) 0 to 5,000 kilometers z) 0 to 1,500 kilometers

Last Answer : ANSWER: Z -- 0 TO 1,500 KILOMETERS