Description : One nanometer is equal to ______ meters. (1) 10 raised to the power (-3) (2) 10 raised to the power (-6) (3) 10 raised to the power (-9) (4) 10 raised to the power (-12)
Last Answer : (3) 10 raised to the power (-9) Explanation: A nanometer is a unit of spatial measurement that is 10-9 meter, or one billionth of a meter.
Description : One nanometer is equal to _____ meters. (1) 10 raised to the power (-3) (2) 10 raised to the power (-6) (3) 10 raised to the power (-9) (4) 10 raised to the power (-12)
Last Answer : (3) 10 raised to the power (-9) Explanation: A nanometer is a unit of spatial measurement that is 10-9 meter, or one billionth of a meter. It is often used to express dimensions on an atomic scale. It is commonly used in nanotechnology, the building of extremely small machines.
Description : One nanometer is equal to: w) 10-12 meters x) 10-11 meters y) 10-3 meters z) 10-9 meters
Last Answer : ANSWER: Z -- 10-9 METERS
Description : A film is said to be thin if its thickness is (a) Much smaller than wavelength of light (b) Comparable with one wavelength of light (c) Of the order of nanometer (10-9 m) (d) Of the order of Pico meter (10-12 m)
Last Answer : (b) Comparable with one wavelength of light
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
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
Description : A typical microwave oven produces microwave radiation with a wavelength of: w) 3 meters x) 3 x 10-2 meters (read: 3 times 10 to the minus 2 meters) y) 3 x 10 -6 meters (read: 3 times 10 to the minus 6 meters) z) 3 x 10-9 meters (read: 3 times 10 to the minus 9 meters)
Last Answer : ANSWER: X -- 3 x 10-2 METERS
Description : MIS account in multiple of Rs. 1500/- can be made instead of Rs. 1000/- MIS and the maximum limit of investment in a single account has been raised from Rs. 3 lakh to Rs. 4.5 lakh and in joint account opened by two ... to Rs. 9 Lakh. Wef a) 01.8.2007 b) 12.5.2008 c) 30.08.2009 d) None of these
Last Answer : a) 01.8.2007
Description : Femtometre x Nanometer x (Gigametre)2 = a.Micrometre b.Metre c.Picometre d.107 dynes e.Megametre
Last Answer : a. Micrometre
Description : What is a Nanometer ?
Last Answer : One meter is called 1000 , 000 , 000 nanometers.
Description : Give a reading as the length of some liquid column: water, alcohol, etc. a. Banometer b. Nanometer c. Thermometer d. Manometer
Last Answer : Manometer
Description : To observe interference in thin films with a light of wavelength λ, the thickness of the film (a) Should be much smaller than λ (b) Should be a few thousand times of λ (c) Should be of the order of λ (d) Should be of the order of nanometer
Last Answer : (c) Should be of the order of λ
Description : Infrared radiations are detected by (1) Pyrometer (2) Nanometer (3) Photometer(4) Spectrometer
Last Answer : Photometer
Description : Define nanometer & nanoparticle.
Last Answer : Nanometer: A nanometer is a billionth of a meter. Nanoparticle: Nanoparticles are particles whose dimensions( any one or many) are between 1 and 100 nanometres (nm) .
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
Description : The acceleration due to gravity on the moon is 1.6 meters per second squared. If a pendulum is whose length is 6.4 meters is placed on the moon, its period will be: w) 1.57 seconds x) 3.14 seconds y) 12.56 seconds z) 25.12 seconds
Last Answer : not real
Description : An object dropped from rest near the Earth's surface will fall how far in the first second: w) 4.9 meters x) 9.8 meters y) 16.0 meters z) 32 meters
Last Answer : ANSWER: W -- 4.9 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
Description : An object is projected vertically upward near the surface of the earth. At the very top of its path, the object's velocity is zero, and its acceleration is: w) 0 x) 9.8 meters per second squared DOWNWARD y) 9.8 meters per second squared UPWARD z) depends on the mass of the object
Last Answer : ANSWER: X -- 9.8 METERS PER SECOND SQUARED DOWNWARD
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
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
Description : In a construction site, a crane lifts 1000 kg of concrete mix to roof top at a height of 20 meters in 50 seconds. If the value of gravity 'g' due to earth is 10 m s-2, the power of elevator will be. -Physics
Last Answer : 4 KW (kilowatt)
Description : A car traveling at a constant velocity of 20 meters per second passes a second car which is initially at rest. The car which was at rest starts accelerating at 10 meters per second squared the instant it is passed ... car. They will meet again in: w) 2 seconds x) 4 seconds y) 6 seconds z) 8 seconds
Last Answer : ANSWER: X -- 4 SECONDS
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
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
Description : A wave and its reflection produce a standing wave with the distance from NODE to nearest ANTINODE of 4 meters. The wavelength of this wave is: w) 4 meters x) 8 meters y) 12 meters z) 16 meters
Last Answer : ANSWER: Z -- 16 METERS
Description : In 1842, Edwin Chadwick's report raised the possibility that sewage spreads disease along with a ______ outbreak which began the ________ movement. a. typhoid, aseptic b. cholera, sanitation c. polio, immunization d. none of the above are correct
Last Answer : b. cholera, sanitation
Description : How many meters is equal to 1 femtometer ?
Last Answer : 6 equal to 1015 meters
Description : A person of mass ‘m’ kg jumps from a height of ‘h’ meters, he will land on the ground with a velocity equal to: A. √(2 × g × h) B. 1/h × √(2 × g) C. 2gh D. 2√(g × h)
Last Answer : √(2 × g × h)
Description : Two goods trains having equal lengths, take 30 seconds and 45 seconds respectively to cross a telegraph post. If the length of each train is 360 meters, in what time (in seconds) will they cross each other when traveling in opposite direction? A) 36 B) 12 C) 24 D) 48
Last Answer : ANSWER:A Explanation: Speed of train = distance /time = 360/30 m/s = 12 m/s Speed of train 2 = distance /time = 360 /45 m/s = 8 m/s If 2 trains are moving in opposite ... +360 = 720 m Time = distance/speed = (720/20) = 36 Seconds Hence the required answer is 36 seconds
Description : Force per meter on two wires carrying a current of 1 A placed 1 m apart is equal to A. 6.7 × 10-11 N B. 9.0 × 109 N C. 2.0 × 10-7 N D. 3.0 × 10-4 N
Last Answer : 2.0 × 10-7 N
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 7. Two faces measuring 4 cm x 1 cm are coloured in black. 8. Two faces measuring 6 cm x 1 cm are coloured in red. 9. Two faces measuring ... 1 cm(from 4 cm side). How many small cubes will be formed? (a)6 (b)12 (c)16 (d)24
Last Answer : Answer key : (d)
Description : The driveshaft of a car rotates at 450 radians per second with a torque of 150 Newton-meters. How much power is produced?
Last Answer : ANSWER: 67,500 WATTS
Description : Assume that water vaporizes at an absolute pressure of 1.5 m, barometric pressure head is 9.5 m and cavitation coefficient is 0.1 A turbine operates under a head of 40 m. the safe height of the runner above the tail water level, in meters, is : a) 6 b) 4 c) 3 d) 2
Last Answer : b) 4
Description : How far will a free falling object cover 3 seconds if it travels a distance of 6 seconds 72 meters ?
Last Answer : h = ut + 0.5 * g * t ^ 2 => h = 0 + 0.5 * 9.8 * 3 ^ 2 => h = 44.1 m. 44.1 meters.
Description : A model airplane flies over the ocean in level flight at an altitude of 19.6 meters. How long does it take a bomb, dropped from under the wing, to impact the water?
Last Answer : ANSWER: 2 SECONDS
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
Description : An organ pipe which is open at both ends resonates at its fundamental frequency. Neglecting any end effects, what wavelength is formed by this pipe in this mode of vibration if the pipe is 2 meters long? w) 2 meters x) 4 meters y) 6 meters z) 8 meters.
Last Answer : ANSWER: X -- 4 METERS
Description : A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is ... of the package, relative to the ground, the instant the package is released by the helicopter?
Last Answer : ANSWER: 6 METERS/SECOND UP
Description : A boy throws a ball vertically upward with a velocity of 6 meters per second. How long does it take the ball to return to the boy's hand?
Last Answer : ANSWER: 1.22 SECONDS (accept: 1.2 seconds)
Description : A ball leaves a girl's hand with an upward velocity of 6 meters per second. What is the maximum height of the ball above the girl's hand?
Last Answer : ANSWER: 1.8 METERS
Description : The devices labeled 'L' in the illustration are _________. EL-0003 A. load lights indicating that the generator breaker is closed and the generator is supplying power to the main bus B. ... o'clock position the lights are at their dimmest or out indicating the the generators are in phase
Last Answer : Answer: D
Description : What is 9 meters and 10 meters?
Last Answer : They add up to 19 meters
Description : An object is displaced by 10 meters in the direction of applied force. If the applied force is 75 N, What is the work done by the force? -Physics
Last Answer : (d) 750 joule
Description : A man cannot see clearly beyond 10 meters. The disease he suffers from : (1) Far sight (2) Myopia (3) Cataract (4) Hypermetropia
Last Answer : (2) Myopia Explanation: The man suffers from myopia, a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too ... a result, the light entering the eye isn't focused correctly and distant objects look blurred.
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
Description : 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
Last Answer : ANSWER: Z -- 0 JOULES
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
Description : A 10 kg mass initially sitting on the ground is placed on a ledge 3 meters above ground level. What is the increase in potential energy of the mass?
Last Answer : ANSWER: 294 JOULES (accept 300 JOULES, ASSUMES g=10m/sec2)
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