EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 38, Problem 10Q
To determine
The conclusion that can be made about momentum if the position of an object is known precisely.
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What is the change in the y-component of the momentum (kg*m/s)?
Show that the kinetic energy of a particle of mass m is related to the
magnitude of the momentum p of that particle by KE = p?/2m. (Note: This
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A particle of mass m moves with a momentum of magnitude p.
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- A particle of mass m moving along the x-axis with a velocity component +u collides head-on and sticks to a particle of mass m/3 moving along the x-axis with the velocity component −u. What is the mass M of the resulting particle?arrow_forward(a) Find the momentum of a 1.00109 kg asteroid heading towards the Earth at 30.0 km/s. (b) Find the ratio of this momentum to the classical momentum. (Hint: Use the approximation that =1+(1/2)v2/c2 at low velocities.)arrow_forwardIn a frame at rest with respect to the billiard table, a billiard ball of mass m moving with speed v strikes another billiard ball of mass m at rest. The first ball comes to rest after the collision while the second ball takes off with speed v in the original direction of the motion of the first ball. This shows that momentum is conserved in this frame. (a) Now, describe the same collision from the perspective of a frame that is moving with speed v in the direction of the motion of the first ball. (b) Is the momentum conserved in this frame?arrow_forward
- (a) Find the momentum of a asteroid heading towards Earth at 30.0 km/s. (b) Find the ratio of this momentum to the classical momentum. (Hint: Use the approximation that at low velocities.)arrow_forwardMust the total energy of a system be conserved whenever its momentum is conserved? Explain why or why not.arrow_forwardQuestion 8: An object starts moving with an initial velocity of 2 m/s with constant acceleration of The correct relationship between the kinetic energy (K) and momentum (P) is .... Question 5: (a) K=P?/2m (b) K=P/2m (c) K=P/2m (d) K=P/4m Question 6: The product of an object's mass and its velocity is (a) | Momentum (b) Kinetic energy (c) Potential (d) the work done energy The direction of friction force is always similar to the direction in which the cbiet Question 7: is moving. (b) False (a) True Question 8: 4 m/s, what is its displacement after 1 sec? (b) | 14 m (c) 4 m (а) | 40 m (d) 0.4 marrow_forward
- Nuclear Fusion Reaction In a human-scale model of a nuclear fusion reaction, two "deuterons" smash together head-on. Each has a mass of 2.0147kg and is moving at speed vd. The result is a "Helium-3 nucleus" (mass 3.0160kg) and a separate "neutron" (mass 1.0090kg). Amazingly, this reaction produces a positive Wnc of 3.96 × 10 14 J -- by converting mass into kinetic energy as predicted by Einstein's E mc² = The "neutron" moves with a speed of un after the reaction. E 4 ☑ Vd 1.57×107 m (no answer) Correct Answer: 3.64 S Un ×107 m S + + D D 3Не N. Proton Neutron http://fusion.srubar.netarrow_forwardKE of a particle is increased by 300% . Find the percentage increase in momentum.arrow_forwardHow long should a force of 50 N be applied to change the momentum of an object by 12 kg • m/s?arrow_forward
- The speed of the object is 2 rn/s. Calculate the mass of the object when its momentum is 12 kg•m/s.arrow_forwardA ball of mass 0.4kg is thrown at a wall. It strikes the wall with a speed of 1.5ms−1 perpendicular to the wall and bounces off the wall with a speed of 1.2ms−1. Calculate the changes in momentum and kinetic energy which happen in the collision between the ball and the wall.arrow_forwardA spaceship has length 120 m, diameter 25 m, and mass 4.0 x 103 kg as measured by its crew. As the spaceship moves parallel to its cylindrical axis and passes us, we measure its length to be 90 m. (a) What do we measure its diameter to be? (b) What do we measure the magnitude of its momentum to be?arrow_forward
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