Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.9 m/s and a mass of 0.53 kg. Cart 2 has a mass of 0.75 kg. (a) If the total momentum of the system is to be zero, what is the initial speed (in m/s) of Cart 2? (Enter a number.) ?m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is zero? Yes or No     (c) Determine the system's kinetic energy (in J) in order to substantiate your answer to part (b). (Enter a number.) J

The carbon isotope 14C is used for carbon dating of archaeological artefacts. 14C decays to 14N by a process known as beta decay, in which the nucleus emits an electron (also known as a beta particle) and a subatomic particle called a neutrino. In one such decay, the electron and the neutrino are emitted in opposite directions to each other. The electron has a speed of 4 x 107 m/s and the neutrino has a momentum of 8 × 10-24 kg m/s. What is the recoil speed (in m/s) of the resulting 14N nucleus? (Take the mass of the carbon-14 and nitrogen-14 nuclei to be 2.34 x 10-26 kg and the mass of the electron to be 9.11 x 1031 kg. If you were aware of such things and concerned, please ignore relativistic effects.)

A 1960 kg truck traveling north at 30 km/h turns east and accelerates to 54 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?

what momentum does a car of mass 1,762 kg have if its traveling at 11.3 m/s? answer in exponential form.

A spring pushes against two horizontal carts that are held together by a thread on a frictionless surface. Cart A is 1.5-kg and Cart B is 4.5-kg. The thread is then burned, releasing the stored energy of the spring and the carts move away from each other. The Cart A moves with a velocity of 27cm / s to the left. What is the velocity of the Cart B, in cm / s ?

ent G An impulse of 12.2 kg*m/s is deli x 361242/take 10 p Question 1 A warehouse employee is pushing a 30.0 kg desk across a floor at a constant speed of 0.50 m/s. What is the magnitude of the momentum of the desk? O 0.017 kg*m/s O 15.0 kg*m/s O 60 kg*m/s O 30.5 kg*m/s Question 2 10 pts Norton Antivirus: 19.99/YE Your special price is valid to Google Chrome istudy-helper.co The momentum of a 12kg dog racing to greet its owner has a Norton What is the dog's speed? Install O a Cop

A 0.84 kg ball moving horizontally at 9.0 m/s strikes a vertical wall and rebounds with speed of 5.0 m/s. What is the magnitude of the change in its linear momentum.

A basketball with a mass of 0.60 kg is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 3.1 kg m/s. At what height was the ball dropped?

A 1980 kg truck traveling north at 37 km/h turns east and accelerates to 53 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?

A guy running drops from a tower to the ground.  The height of the tower is 8 m.  (a) How fast is the person going when he hits the ground (assuming no air resistance)?  (b)  If the person's mass is 65 kg, what is his momentum when he hits the ground? (c)  If he lands and bends his knees, he comes to rest in 0.2 sec.  What force is being exerted on his legs to stop him?