8.3 (a) Show that the kinetic energy K and the momentum p²/2m. magnitude p of a particle with mass m are related by K = (b) A 0.040-kg cardinal (Richmondena cardinalis) and a 0.145-kg baseball have the same kinetic energy. Which has the greater mag- nitude of momentum? What is the ratio of the cardinal's magnitude of momentum to the baseball's? (c) A 700-N man and a 450-N woman have the same momentum. Who has the greater kinetic energy? What is the ratio of the man's kinetic energy to that of the woman?

8.3 (a) Show that the kinetic energy K and the momentum p²/2m. magnitude p of a particle with mass m are related by K = (b) A 0.040-kg cardinal (Richmondena cardinalis) and a 0.145-kg baseball have the same kinetic energy. Which has the greater mag- nitude of momentum? What is the ratio of the cardinal's magnitude of momentum to the baseball's? (c) A 700-N man and a 450-N woman have the same momentum. Who has the greater kinetic energy? What is the ratio of the man's kinetic energy to that of the woman?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

+ 1105 4. A soccer ball of mass .42 is traveling with a speed of 4.5 m/s at an angle of 20° with respect to the positive x-axis. What are the x and y components of the momentum? 20° Chp fg f10 f12 insert & 9. l'iYsICS 252 -556 Spring 2021 CO
36. The position vector of a particle of mass 4 kg is r= [t21 – 3tj + (1 – t²)k] m. It's momentum when t = 1 s is A (8i – 8j) N s в (21 — 3) — 2k)Ns с (4i - 3) Ns D (81 – 12j – 8k) N s
(a) Calculate the momentum of a 1950 kg elephant charging a hunter at a speed of 7.50 m/s. 14625 kg · m/s (b) Compare the elephant's momentum with that of a 0.0400 kg bullet fired at a speed of 600 m/s. 24 (c) What is the momentum in kilograms times meters per second of the 90.0 kg hunter running at 8.00 m/s after missing the elephant? 720 kg · m/s
calculate kinetic energy of mass 6kg. 192 joule Answer
An object is traveling such that it has a momentum of magnitude 21.9 kg m/s and a kinetic energy of 300 J. Determine the following. (a) speed of the object in meters per second m/s (b) mass of the object in kilograms kg
Find the magnitude of the linear momentum for the following cases. (Enter your answers in kg · m/s.) (a) a neutron with mass 1.67 ✕ 10−27 kg, moving with a speed of 6.00 ✕ 106 m/s kg · m/s (b) a 14.0-g bullet moving with a speed of 350 m/s kg · m/s (c) a 72.5-kg athlete running with a speed of 10.0 m/s kg · m/s (d )the Earth (mass = 5.98 ✕ 1024 kg) moving with an orbital speed equal to 2.98 ✕ 104 m/s. kg · m/s
A 1.0 kg mass with a speed of 4.5 m/s strikes a 2.0 kg mass at rest. For a completely inelastic collision, find: (a) The speed of the masses after the collision. (b) The change in kinetic energy. (c) The momentum after the collision.
Problem 7.01. A 2.5 kg Hellbender (a.k.a. lasagna lizard, the official amphibian of PA) swims with a speed of 5.0 m/s down a stream which flows at 10.0 m/s. a) How much momentum does the Hellbender have with respect to still water? b) How much momentum does the Hellbender have with respect to the Earth?
A 1.21 kg block B is moving with a speed of 2.23 m/s as it strikes the 0.69 kg sphere A which was at rest. If the speed of the block was reduced to 1.21 m/s immediately after impact, compute the height (m) reached by the sphere. Round off only on the final answer expressed in 3 decimal places.
19
A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. The electron and neutrino are emitted at right angles and have momenta of pe = 8.95×10-23 kg-m/s and Py = 6.18x10-23 kg. m/s, respectively. (Figure 1) Figure Pnuc (nuc) +y 0 Onuc Pv Pe Part A Determine the magnitude of the momentum of the second (recoiling) nucleus. Express your answer to three significant figures and include the appropriate units. Pnuc = Submit Part B ■ μÅ Value Request Answer Pearson Units Review | Constan ?
Q.16. An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s-1 to 8 m s-1 in 6 s. Calculate the initial and final momentum of the object. Also find the magnitude of the force exerted on the object.