What is a cars acceleration if if increases it and speed from 5 ms to 20 ms in 3 s?

What is a cars acceleration if if increases it and speed from 5 ms to 20 ms in 3 s?
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In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by aslowly falling body weighing 40 kg through a height of 4 m. The process isrepeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglectingthe heat capacity of agitator, the temperature of water (in °C) is(A) 40.5(B) 34.4(C) 26.8(D) 25

Description : In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated ... temperature of water (in °C) is (A) 40.5 (B) 34.4 (C) 26.8 (D) 25

Last Answer : (B) 34.4

The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______. (i) 20 s (ii) 0.05 s (iii) 25 s (iv) 0.04 s

Description : The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______. (i) 20 s (ii) 0.05 s (iii) 25 s (iv) 0.04 s

Last Answer : (iv) 0.04 s

A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of scooter. -Science

Description : A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of scooter. -Science

Last Answer : Acceleration is given by a=ΔvΔta=ΔvΔt a=20−104=104=2.5a=20−104=104=2.5 So a=2.5 m/s

When your mass is 96 kg. The acceleration due to gravity is 9.8 ms 2 . How much work against gravity do you do when you climb a flight of stairs 3.8 m high Answer in units of J.?

Description : When your mass is 96 kg. The acceleration due to gravity is 9.8 ms 2 . How much work against gravity do you do when you climb a flight of stairs 3.8 m high Answer in units of J.?

Last Answer : 4

raft increases with increase in forward speed for most of the implement, mainly due to a) More rapid acceleration of any soil particles that is moved appreciably b) More working width c) Increased working depth d) Draft decreases with increase in speed of implement

Description : raft increases with increase in forward speed for most of the implement, mainly due to a) More rapid acceleration of any soil particles that is moved appreciably b) More working width c) Increased working depth d) Draft decreases with increase in speed of implement

Last Answer : a) More rapid acceleration of any soil particles that is moved appreciably

If A bicycle has a mass of 20 kg. A small car has a mass of 1000 kg. A force is applied to accelerate the car from a standing position to a speed of 1 ms. If the same force that was applied to the car?

Description : If A bicycle has a mass of 20 kg. A small car has a mass of 1000 kg. A force is applied to accelerate the car from a standing position to a speed of 1 ms. If the same force that was applied to the car?

Last Answer : Need answer

As we go from Equator to North pole the value of `S, the acceleration due to gravity (1) remains the same (2) decreases (3) increases (4) None of the above

Description : As we go from Equator to North pole the value of `S, the acceleration due to gravity (1) remains the same (2) decreases (3) increases (4) None of the above

Last Answer : (3) increases Explanation: The acceleration due to gravity of earth is the rate of increase of velocity of a body falling freely towards the earth. At a given place, the value of acceleration due to gravity ... out at the equator. The value of 'g' is minimum at the equator and maximum at the poles.

What is the speed in ms of a wave on a cord if it has a wavelength of 4 m and a period of 0.5 s?

Description : What is the speed in ms of a wave on a cord if it has a wavelength of 4 m and a period of 0.5 s?

Last Answer : It is 8 metres per second.

Does hard acceleration actually help some cars?

Description : Does hard acceleration actually help some cars?

Last Answer : I don’t know if it works like that for cars. But if you remember 2 cycle engines in snowmobiles and dirt bikes if the plug started to foul the answer was open the throttle wide open and clean it out. It was rough and fast, but it worked.

How can i measure the acceleration of wooden cars being rolled down a hill?

Description : How can i measure the acceleration of wooden cars being rolled down a hill?

Last Answer : http://physics.info/acceleration/

Calculate the reverberation time of a living room 8 ft high, 13 ft wide and 20 ft long. The total absorption of the building structure inside the room is 180.7 sabines with four persons present in the room. A. 0.5 ms B. 0.05 s C. 0.5 s D. 5 ms

Description : Calculate the reverberation time of a living room 8 ft high, 13 ft wide and 20 ft long. The total absorption of the building structure inside the room is 180.7 sabines with four persons present in the room. A. 0.5 ms B. 0.05 s C. 0.5 s D. 5 ms

Last Answer : C. 0.5 s

An object dropped from a cliff falls with a constant acceleration of 10 m/s2. Find its speed 5 s after it was dropped. -Science

Description : An object dropped from a cliff falls with a constant acceleration of 10 m/s2. Find its speed 5 s after it was dropped. -Science

Last Answer : v=u+atv=u+at u=0u=0 v=10×5=50m/sv=10×5=50m/s

The speed of a motor car changes from 18 km/h to 72 km/h in 5 s. Its acceleration is (a) 6 m/s2 (b) 5 m/s2 (c) 4 m/s2 (d) 3 m/s2

Description : The speed of a motor car changes from 18 km/h to 72 km/h in 5 s. Its acceleration is (a) 6 m/s2 (b) 5 m/s2 (c) 4 m/s2 (d) 3 m/s2

Last Answer : Ans:(d)

If a spinster staring from rest has acceleration of 5 m s-2 during 1st 2.0 s of race then her velocity after 2 s is A. 20 m s-1 B. 10 m s-1 C. 15 m s-1 D. 5 m s-1

Description : If a spinster staring from rest has acceleration of 5 m s-2 during 1st 2.0 s of race then her velocity after 2 s is A. 20 m s-1 B. 10 m s-1 C. 15 m s-1 D. 5 m s-1

Last Answer : 10 m s-1

An object moves along a straight line with an acceleration of 2 m/s2. If its initial speed is 10 m/s, what will be its speed 2 s later? -Science

Description : An object moves along a straight line with an acceleration of 2 m/s2. If its initial speed is 10 m/s, what will be its speed 2 s later? -Science

Last Answer : u=10 m/s,t=2 s, a=2 m/s2 v=u+atv=u+at v=10+2×2=14v=10+2×2=14 m/s

A roller coaster reaches a velocity of 20 m/s at a location where the radius of curvature is 40 m. Calculate the acceleration in m/s2? a.10 b.9 c.11 d.8 e.107 dynes

Description : A roller coaster reaches a velocity of 20 m/s at a location where the radius of curvature is 40 m. Calculate the acceleration in m/s2? a.10 b.9 c.11 d.8 e.107 dynes

Last Answer : a. 10

A car starts from rest and moves on a straight road with a uniform acceleration of 10 m/s2 for the first 10 s. During the next 10 s, the car move s with the velocity it has attained. What is the total distance covered by the car in 20 s? (a) 500 m (b) 1000 m (c) 1,500 m (d) 2,000 m

Description : A car starts from rest and moves on a straight road with a uniform acceleration of 10 m/s2 for the first 10 s. During the next 10 s, the car move s with the velocity it has attained. What is the total distance covered by the car in 20 s? (a) 500 m (b) 1000 m (c) 1,500 m (d) 2,000 m

Last Answer : Ans:(c)

Acceleration of train when it is moving steadily from 4.0 m s-1 to 20 m s-1 in 100 s isA. 1 m s-2B. 2 m s-2C. 0.16 m s-2D. 3 m s-2

Description : Acceleration of train when it is moving steadily from 4.0 m s-1 to 20 m s-1 in 100 s is A. 1 m s-2 B. 2 m s-2 C. 0.16 m s-2 D. 3 m s-2

Last Answer : 0.16 m s-2

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is? a) 2 : 3 b) 3: 2 c) 3 : 4 d) 4 : 3 e) None of these

Description : It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is? a) 2 : 3 b) 3: 2 c) 3 : 4 d) 4 : 3 e) None of these

Last Answer : Let the speed of the train be x km/hr and that of the car be y km/hr. Then, 120/x+480/y= 8 1/x+4/y=1/15 ....(i) And, 200/x+400/y=25/3 1/x+2/y=1/24 ....(ii) Solving (i) and (ii), we get: x = 60 and y = 80. Ratio of speeds = 60 : 80 = 3 : 4. Answer: c)

A freight car weighing 20 tons and moving at a speed of 7 miles per hour on a horizontal track collides and couples with a stationary car that weighs 15 tons. Neglecting friction, determine the velocity of the coupled cars.

Description : A freight car weighing 20 tons and moving at a speed of 7 miles per hour on a horizontal track collides and couples with a stationary car that weighs 15 tons. Neglecting friction, determine the velocity of the coupled cars.

Last Answer : ANSWER: 4 MILES PER HOUR

What happens to mass as acceleration increases?

Description : What happens to mass as acceleration increases?

Last Answer : Nothing. The force increases but the mass is constant. However if it gets fast enough the mass will increase ever so slightly and get much higher near the speed of light, according to Einstein's theory of relativity. But at ordinary speeds there is insignificant change

Acceleration head in a reciprocating pump (A) Increases the work done during delivery stroke (B) Decreases the work done during suction stroke (C) Does not change the work requirement of the pump (D) Increases the work done during suction stroke

Description : Acceleration head in a reciprocating pump (A) Increases the work done during delivery stroke (B) Decreases the work done during suction stroke (C) Does not change the work requirement of the pump (D) Increases the work done during suction stroke

Last Answer : (C) Does not change the work requirement of the pump

Soil acceleration increases draft because of a) Increased normal load on soil working surface b) Increased frictional resistance c) Kinetic energy imparted to the soil d) All of the above

Description : Soil acceleration increases draft because of a) Increased normal load on soil working surface b) Increased frictional resistance c) Kinetic energy imparted to the soil d) All of the above

Last Answer : d) All of the above

As we go from Equator to North pole the value of ‘g’, the acceleration due to gravity (1) remains the same (2) decreases (3) increases (4) None of the above

Description : As we go from Equator to North pole the value of ‘g’, the acceleration due to gravity (1) remains the same (2) decreases (3) increases (4) None of the above

Last Answer : increases

A man is running away from a plane mirror at the speed of `5 ms^(-1)`. With what speed is he receding from his own image ?

Description : A man is running away from a plane mirror at the speed of `5 ms^(-1)`. With what speed is he receding from his own image ?

Last Answer : A man is running away from a plane mirror at the speed of `5 ms^(-1)`. With what speed is he receding from his own image ?

What is the speed of an object that is dropped off a cliff after 5 seconds and no air resistance with an initial speed of 0 ms?

Description : What is the speed of an object that is dropped off a cliff after 5 seconds and no air resistance with an initial speed of 0 ms?

Last Answer : Feel Free to Answer

What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Description : What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Last Answer : Momentum is mass times velocity. But in this case, you don'teven need to calculate that: If I understand correctly, the ballshave the same mass, the same speed, and they move exactly inopposite directions - so ... other words, if oneball has a momentum of +M, the other one will have a momentum of-M.

What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Description : What is the total momentum of the system before collision If two 0.5 kg balls approach each other with the same speed of 1.0 ms?

Last Answer : Momentum is mass times velocity. But in this case, you don'teven need to calculate that: If I understand correctly, the ballshave the same mass, the same speed, and they move exactly inopposite directions - so ... other words, if oneball has a momentum of +M, the other one will have a momentum of-M.

2. Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 x 108 ms-1. -Physics-10

Description : 2. Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 x 108 ms-1. -Physics-10

Last Answer : Refractive index of a medium (nm) = Speed of light in vacuum/Speed of light in the medium Speed of light in vacuum (c) = 3 × 108 m/s Refractive index of glass (ng) = 1.50 Speed of light in the ... Speed of light in vacuum/ Refractive index of glass = c/ng =3 × 108/1.50 = 2x 108 ms-1.

Statistics , Problems with Two Projectors ? From the top of a 100 meter high tower an object is thrown at a 30 ° angle with a horizontal speed of 50 ms . At the same time another object from the base of the tower was thrown at an angle of 45 সাথে with the same velocity horizontally . At what time and at what height will the two objects meet ?

Description : Statistics , Problems with Two Projectors ? From the top of a 100 meter high tower an object is thrown at a 30 ° angle with a horizontal speed of 50 ms . At the same time another object from ... সাথে with the same velocity horizontally . At what time and at what height will the two objects meet ?

Last Answer : answer:

X-rays travel at a speed of _________`ms^(-1)`.

Description : X-rays travel at a speed of _________`ms^(-1)`.

Last Answer : X-rays travel at a speed of _________`ms^(-1)`.

An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6) ms^(-1)`. Determine the electric current at a point on the

Description : An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6) ms^(-1)`. Determine the electric current at a point on the

Last Answer : An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6 ... Determine the electric current at a point on the orbit.

A proton is projected with a speed of `3X10^6 ms ^(-1)` horizontally from est to west. A uniform magnetic field `vec B` of strength `2.0X10^(-3)` T ex

Description : A proton is projected with a speed of `3X10^6 ms ^(-1)` horizontally from est to west. A uniform magnetic field `vec B` of strength `2.0X10^(-3)` T ex

Last Answer : A proton is projected with a speed of `3X10^6 ms ^(-1)` horizontally from est to west. A uniform magnetic field ` ... (2)` D. `2.9xx10^(11)m//s^(2)`

The electron with change `(q=1.6xx10^(-19)C)` moves in an orbit of radius `5xx10^(-11)`m with a speed of `2.2xx10^(6)ms^(-1)`, around an atom. The equ

Description : The electron with change `(q=1.6xx10^(-19)C)` moves in an orbit of radius `5xx10^(-11)`m with a speed of `2.2xx10^(6)ms^(-1)`, around an atom. The equ

Last Answer : The electron with change `(q=1.6xx10^(-19)C)` moves in an orbit of radius `5xx10^(-11)`m with a speed of `2. ... -3)A` C. `1.12xx10^(-9)A` D. `1.12A`

What is a sound wave of 125hz and the speed of 5000 ms?

Description : What is a sound wave of 125hz and the speed of 5000 ms?

Last Answer : It is sound travelling through a dense medium, like iron, forexample.

Why the statement The speed of light is 300 million ms is not always correct.?

Description : Why the statement The speed of light is 300 million ms is not always correct.?

Last Answer : When you have an interest in more signficant figures:299,792,456 m/s. It was measured in 1983 using wavelengths of acertain light from an atom, and that is what we got stuck with. ... if itis through a vacuum. (Shapiro time delay.)Light travels through different types of matter at differentspeeds

What centripetal force is needed to keep a kg object moving at a constant speed of ms in a circle having a radius of 4 m?

Description : What centripetal force is needed to keep a kg object moving at a constant speed of ms in a circle having a radius of 4 m?

Last Answer : What is the answer ?

Why the statement The speed of light is 300 million ms is not always correct.?

Description : Why the statement The speed of light is 300 million ms is not always correct.?

Last Answer : When you have an interest in more signficant figures:299,792,456 m/s. It was measured in 1983 using wavelengths of acertain light from an atom, and that is what we got stuck with. ... if itis through a vacuum. (Shapiro time delay.)Light travels through different types of matter at differentspeeds

Why is the statement the speed of light is 300millon ms not always correct?

Description : Why is the statement the speed of light is 300millon ms not always correct?

Last Answer : You need to specify the medium. The speed of light IN A VACUUM is always exactly 299,792,458 meters per second - FOR ANY OBSERVER. The speed of light in water, air, glass, etc. is usually less than that.

The supervisor Speed post centre will send his daily report to Manager speed post a) By means of a letter b) By fax message c) By email d) By using format MS 83

Description : The supervisor Speed post centre will send his daily report to Manager speed post a) By means of a letter b) By fax message c) By email d) By using format MS 83

Last Answer : d) By using format MS 83

An α particle moves perpendicular to a constant magnetic field of strength 1.2 T in a circular path of radius 0.7 m. The speed of α particle in ms-1 is ______________ a) 2.7 × 107 b) 2.6 × 107 c) 3.2 × 107 d) 2.0 × 107

Description : An α particle moves perpendicular to a constant magnetic field of strength 1.2 T in a circular path of radius 0.7 m. The speed of α particle in ms-1 is ______________ a) 2.7 × 107 b) 2.6 × 107 c) 3.2 × 107 d) 2.0 × 107

Last Answer : a) 2.7 × 107

In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane at an angle of 45? with c.In lifting up a weight of 100 kg at a constant speed of 3 m/sec d.In lowering the weight at a constant speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Description : In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane ... speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Last Answer : a. In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec

Over taking time required for a vehicle with design speed 50 km ph and overtaking acceleration 1.25 m/sec2 to overtake a vehicle moving at a speed 30 km ph, is (A) 5.0 secs (B) 6.12 secs (C) 225.48 secs (D) 30 secs

Description : Over taking time required for a vehicle with design speed 50 km ph and overtaking acceleration 1.25 m/sec2 to overtake a vehicle moving at a speed 30 km ph, is (A) 5.0 secs (B) 6.12 secs (C) 225.48 secs (D) 30 secs

Last Answer : Answer: Option B

While traveling in a straight line, a car uniformly changes its speed from 50 kilometers per hour to 110 kilometers per hour in 5 seconds. The acceleration of the car during this time is: w) 5 kilometers per hour per second x) 12 kilometers per hour per second y) 50 kilometers per hour per second z) 60 kilometers per hour per second

Description : While traveling in a straight line, a car uniformly changes its speed from 50 kilometers per hour to 110 kilometers per hour in 5 seconds. The acceleration of the car during this time is: w) 5 ... per hour per second y) 50 kilometers per hour per second z) 60 kilometers per hour per second

Last Answer : ANSWER: X -- 12 KILOMETERS PER HOUR PER SECOND

What is the force on an object that goes from 35 ms to 85 ms in 20 second and has a mass of 148 kg?

Description : What is the force on an object that goes from 35 ms to 85 ms in 20 second and has a mass of 148 kg?

Last Answer : Feel Free to Answer

How much time does it take for a car to accelerate from 3.44 ms to 20.9 ms?

Description : How much time does it take for a car to accelerate from 3.44 ms to 20.9 ms?

Last Answer : That depends on what type of car you're driving. For example, a pickup truck would accelerate more slowly than a race car.

Let the page fault service time be 10 millisecond(ms) in a computer with average memory access time being 20 nanosecond(ns). If one page fault is generated for every 106 memory accesses, what is the effective access time for memory? (A) 21 ns (B) 23 ns (C) 30 ns (D) 35 ns

Description : Let the page fault service time be 10 millisecond(ms) in a computer with average memory access time being 20 nanosecond(ns). If one page fault is generated for every 106 memory accesses, what is the effective access time for memory? (A) 21 ns (B) 23 ns (C) 30 ns (D) 35 ns

Last Answer : (C) 30 ns

A couple applied to a flywheel of mass 5 kg and of radius of gyration 20 cm produces an angular acceleration of 4 radians/sec2. The torque applied in dyne cm is a.8 x 104 b.8 x 106 c.8 x 107 d.8 x 108 e.8 x 1010

Description : A couple applied to a flywheel of mass 5 kg and of radius of gyration 20 cm produces an angular acceleration of 4 radians/sec2. The torque applied in dyne cm is a.8 x 104 b.8 x 106 c.8 x 107 d.8 x 108 e.8 x 1010

Last Answer : b. 8 x 106

A cage weighing 200 kg is lowered down a mine shaft with uniform acceleration. In the first 5 sec the cage reaches a depth of 20 m. The tension in the cord lowering the cage would be a.836 kg b.167.2 kg c.100 kg d.41.8 kg e.200 kg

Description : A cage weighing 200 kg is lowered down a mine shaft with uniform acceleration. In the first 5 sec the cage reaches a depth of 20 m. The tension in the cord lowering the cage would be a.836 kg b.167.2 kg c.100 kg d.41.8 kg e.200 kg

Last Answer : b. 167.2 kg