4. Two astronauts with masses mj and m2 are moving with the velocity u together. They push each other off in the direction perpendicular to u, spending the energy AE. What is the angle between the velocities of the astronauts after the push-off?

4. Two astronauts with masses mj and m2 are moving with the velocity u together. They push each other off in the direction perpendicular to u, spending the energy AE. What is the angle between the velocities of the astronauts after the push-off?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter5: Relativity

Section: Chapter Questions

Problem 77AP: (a) Find the value of for the following situation. An astronaut measures the length of his spaceship...

See similar textbooks

Similar questions

One particle has mass mand a second particle has mass 2m . The second particle is moving with speed vand the first with speed 2v . How do their kinetic energies compare?
(a) A nuclear power plant converts energy from nuclear fission into electricity with an efficiency of 35.0%. How much mass is destroyed in one year to produce a continuous 1000 MW of electric power? (b) Do you think it would be possible to observe this mass loss if the total mass of the fuel is 104 kg?
(a) Find the value of for the following situation. An astronaut measures the length of his spaceship to be 100 m, while an observer measures it to be 25.0 m. (b) What is the of the spaceship relative to Earth?
In a laboratory experiment, an electron with a kinetic energy of 50.5 keV is shot toward another electron initially at rest (Fig. P11.50). (1 eV = 1.602 1019 J) The collision is elastic. The initially moving electron is deflected by the collision. a. Is it possible for the initially stationary electron to remain at rest after the collision? Explain. b. The initially moving electron is detected at an angle of 40.0 from its original path. What is the speed of each electron after the collision? FIGURE P11.50
(a) Calculate for a proton that has a momentum of (b) What is its speed? Such protons form a rare component of cosmic radiation with uncertain origins.
Thor stands on the top of stark tower 425 m adn fights his brother loki using mjolnir his hammer. if his hammer has a mass equal to 300 billion elephants cal it 4.5*10^15 kg what i the gaviation potential energy in J of jjolnir relative to the ground? use scientific notation to enter you answer. B. Loki tricks thor into dropping Mjolnir off stark tower. when the hammer has fallen one third of the way down the tower what is its kinetic energy in J? Hint you could find the speed then calculate the kinetic energy but there's an easier way...
A pump discharges 500 liters of fuel oil into a tank 20 m above the pump’sintake in 10minutes.a. What is the change in gravitational potential energy of fuel oil at the saidheight? One cubic centimeter of fuel oil has a mass of 0.89 g and one literis equivalent to 1,000 cm3b. What is the power delivered by the pump?
Considering m, = 4m,, if both masses start from rest, what will be their respective velocities after m, falls for 50.0cm? Do not use dynamics and kinematics, but use an energy approach to solve m2 this question. 1 Answer: -m,gh+m,gh = m,v + 2 m,v Substitute m, = 4m, , we find that... 6g y = - 3.43- S
Answer the missing parts.
a) What is the speed of a body of mass 20 kg, moving with a kinetic energy of 9000 J? b) What is the height of a body of mass 20 kg to gain gravitational potential energy of 2000 ? IType the ANSWER below in proper STEPS) 1 A B I
For this kind of word problem, when do I know there is final and initial kinetic and gravitational energy present?
2. Particle A with mass 9.0 [kg] is at rest relative to the lab frame. What is the particle's energy and momentum as measured by a rocket frame moving to the +r- direction with speed 0.80 relative to the lab frame? A. E = 9.0 [kg), p, = 7.2 (kg] В. Е — 9.0 [kg], р, — —7.2 [kg] C. E = 15 (kg], Pr = 12 [kg] D. E = 15 [kg), Pr = -12 (kg] 3. A laser pointer pulses out violet light with frequency, 4.20 x 1014 [m-1]. How much energy does each laser photon carry? A. 2.78 x 10-19 (kg] В. 9.28 х 10-28 [kg| (kg] D. 5.26 x 10-57 (kg] С. 1.58 х 10-48