What is the average power expended to accelerate a bullet of 15grams mass to a speed of 900 m/sec in 1.3 milliseconds?

Q: A rifle bullet of mass 10 g is fired with a velocity o f800 m/s into a ballistic pendulum of mass 5…

A: m1=Mass of bullet=10 gu1=Velocity of bullet=800 m/sm2=Mass of block=5 kgu2=Velocity of…

Q: The work done in accelerating a body equals the body's change in.. A. Momentum B. Kinetic energy C.…

A: Work done by a force can be represented as, Here, F, d, and θ represent the force, the…

Q: A 26 g bullet traveling 201 m/s penetrates a 2.0 kg block of wood and emerges going 172 m/s. If the…

A: According to momentum conservation Momentum before collision= momentum after collision Pi=Pf.. In…

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Q: A 10,184-kg railroad car traveling at a speed of 38 m/s strikes an identical car at rest. If the…

A: Dear student During collision the momentum remains conserved. The momentum is defined as: P = mv

Q: A fast train bumps into a slow train going the same direcction, and they get coupled together.  The…

A: Given data: The mass of fast train is M = 20.5 tons The mass of slow train is m=19 tons The initial…

Q: A 3095 kg truck is moving West at 25m/s collides with a 6178kg truck moving North a 9m/s.  If the…

A: A m1 = 3095 kg truck is moving West at v1 = 25m/s collides with a m2 = 6178kg truck moving North a…

Q: If a player can toss a 0.200-kg ball with as much momentum as a 2.00-g object moving with a speed of…

A: Given that: m1=0.2 kgv1=?m2=2 g=2×10-3 kgv2=3.2×103 m/s

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Q: A softball of mass 0.200 kg that is moving with a speed 10.3 m/s collides head-on and elastically…

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Q: An 1 kg object has a kinetic energy of 50 J. linear momentum of the object is.

A: Given data,        Kinetic energy  =  K.E          Mass  =  m      To find ,        Momentum of the…

Q: Is the velocity equal to the Kinetic energy?

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Q: An astronaut with a mass of 84kg is at rest in space, before firing her water pack to move towards…

A: Given data The mass of the astronaut is ma = 84 kg. The initial velocity of water and astronaut is…

Q: 4. An object has a kinetic energy of 227 J and a momentum of magnitude 26.6 kg m/s. (a) Find the…

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Q: A basketball of mass 0.6kg is dropped from rest. Just before striking the floor, it has a momentum…

A: Given data: Mass of basketball is, m=0.6 kg. Momentum is, P=3.1 kg·m/s.

Q: An object at rest may have   A) Momentum B) Potential energy C) Velocity D) Kinetic energy

A: Given that -  Object is at rest means velocity is zero.  v= 0

Q: An astronaut with mass 84kg is at rest in space, before firing her water pack to move toward the…

A: Given that,Mass of Astronaut,m1=84 kgInitially Astronaut in rest position in space , u1=0 m/sec…

Q: What happens when the speed of a moving object is halved? its momentum is halved its KE is halved…

A: Solution: Given: What happens when the speed of a moving object is halved? Choose the correct…

Q: When the mass reaches point x = 0, its kinetic velocity is? *

A: The velocity of a body executing SHM is maximum at the mean position and away from the mean…

Q: if the velocity of the moving body is doubled, what does this do to kinetic energy and momentum of…

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Q: Mass M, moving at speed 2V, approaches mass 4M, moving at speed V. The two collide elastically…

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Q: Under what conditions is momentum conserved.

A: A closed system can be defined as the system one which the mass remains constant, and the net…

Q: Two particles of masses 1 kg and 2 kg are moving towards each other with equal speed of 3 m/sec. The…

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Q: What average force is necessary to stop a bullet of mass 20 g and speed of 250 m/s as it penetrates…

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Q: A 10,608-kg railroad car traveling at a speed of 28 m/s strikes an identical car at rest. If the…

A: Given data :               Mass of railroad car , m = 10608 kg               initial speed of first…

Q: How much linear momentum does an 1800 kg car have when moving at 15 m/s?

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Q: four railroad cars all with the same mass of 19000kg are at rest on a track, a fifth car of…

A: Kinetic energy = 0.5(mv2)  Here:- m= mass, v= velocity

Q: If m is the mass of a body and E is its kinetic energy then what is its linear momentum?

A: The equation for the kinetic energy is given by,

Q: How much impulse is needed to stop a 25kg bowling ball rolling at 9m/s?

A: The impulse need to stop the bowling ball is

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Q: How much momentum is needed to stop a truck possessing a kinetic energy of 323631.8 J and is moving…

A: E=12mv2=mvv2=pv2p=2Ev=2323631.8 J218.43 m/s=1.14×1010 kg·m/s

Q: A machine gun fires 13 bullets / s each of mass 24 g the speed to each bullets is 32 cm/s, then…

A: Given data :   Number of bullets   =   N   Speed of each bullet   =  v    Mass  of  each  bullet   =…

Q: what momentum does a car of mass 1,013 kg have if it's traveling at 15m/s? answer needs to be in…

A: Given data The mass of the car is m = 1013 kg. The velocity of the car is v = 15 m/s.   The…

Q: Which of the following has the greatest kinetic energy? * an object with a mass of 4m and a velocity…

A: Given data: Different objects with mass and velocities Required: Object that has greatest kinetic…

Q: A machine gun fires 4 bullets /s, each of mass 10 g the speed to each bullets is 6 cm/-1 then force…

A: Given data :                       Mass of each bullet    =   m                       Number of…

Q: A machine gun fires 18 bullets / s each of mass 24 g the speed to each bullets is 34 cm/s, then…

A: Given data :   Mass  of  the  each  bullet    =  m   Number   of   bullets   =   N     Speed  of…

Q: A 50 kN truck travelling with a speed of 50 kph hits a lamp post and is brought to rest in 0.1 secs.…

A: The weight of the truck, W=50 kN=50000 N   The mass of the truck, m=Wg=50000 N9.81 m/s2=5096.84 kg

Q: A 10,414-kg railroad car traveling at a speed of 27 m/s strikes an identical car at rest. If the…

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Q: When rain falls from the sky, what happens to its momentum as it hits the ground? What about its…

A: Introduction: According to Newton's second law of motion, force is defined as the rate of change of…

Q: What is the average power expended to accelerate a bullet of 15grams mass to a speed of 900m/sec in…

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Q: A machine gun fires 6 bullets /s, each of mass 12 g the speed to each bullets is 16 cm/-1 then force…

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Q: A 12-kg hammer strikes a nail at a velocity of 7.5 m/s and comes to rest in a time interval of 8.0…

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Q: With a cue, the billiard ball is hit with an average force of 50 N within 10ms. If the mass of the…

A: Write the given values with suitable variables. F=50 NΔt=10 ms=0.01 sm=0.2 kg Here, F denotes the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.