If am= 93.9 kg person were traveling at u = 0.982c, where is the speed of...
What is the de Broglie wavelength (in meters) of a neutron traveling at a speed of 0.92 c? Since the neutron's speed is close to the speed of light (c), Special Relativity must be used when calculating the linear momentum (p). The mass of the neutron is 1.675 x 10-27 kg. Suppose that an alpha particle (mαα = 6.646 x 10-27 kg) has a kinetic energy of 75 keV. What is the alpha particle's speed (v) (in terms of "c")?...
A spacecraft passes you traveling forward at 0.359 the speed of light. By what factor would its relativistic momentum increase if its speed doubled?
A 70 kg person can achieve the maximum speed of 2.5 m/s while running a 100 m dash. Treat the person as a point particle. a. At this speed, what is the person's kinetic energy? Express your answer with the appropriate units. b. To what height above the ground would the person have to climb in a tree to increase his gravitational potential energy by an amount equal to the kinetic energy you calculated in part A? Express your answer...
Light speed and classical physics. a. How much energy would it take to accelerate an electron to light speed according to classical (non-relativistic) physics? b. With this energy, what is its actual (relativistic) speed?
Suppose Person A is traveling on a spaceship going 50% of the speed of light. Person A measures the length of the spaceship to be 10 meters. How long would a Person B measure the spaceship if person B were on a planet as the spaceship passed by? 10 m 9.33 m 8.70 m 6.47 m
1 Relativistic Energy Corrections Using a Taylor expansion to order we were able to confirm that, at low velocity, a particle's kinetic energy is approximated by the classical exps For a1 kg object moving at 0.5c: a. Calculate exact kinetic energy in Joules b Calculate the kinetic energy from the classical kinetic energy expression (order c.Continuing the Taylor expansion, caleulate the kinetic energy to order u d. What are the percent erors between the order v2 and order v* and...
A sports car traveling along a straight line increases its speed from 20.2 mi/h to 59.5 mi/h. What is the ratio of the final to the initial magnitude of its momentum? What is the ratio of the final to the initial kinetic energy?
A bullet of mass 0.017 kg traveling horizontally at a high speed of 210 m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface. (a) What is the speed of the block after the bullet embeds itself in the block? Vf = m/s ) Calculate the total translational kinetic energy before and after the collision. Ktrans,i = Ktrans,f = (c) Compare the two results and explain why there is a...
A bullet of mass 0.017 kg traveling horizontally at a high speed of 210 m/s embeds itself in a block of mass 5 kg that is sitting at rest on a nearly frictionless surface. (a) What is the speed of the block after the bullet embeds itself in the block? Vr = 42 x m/s (b) Calculate the total translational kinetic energy before and after the collision. Ktrans,i = 374.85 Ktrans,f= (c) Compare the two results and explain why there...
A 0.00600-kg bullet traveling horizontally with speed 1.00 103 m/s strikes a 19.3-kg door, embedding itself 10.4 cm from the side opposite the hinges as shown in the figure below. The 1.00-m wide door is free to swing on its frictionless hinges. (a) if so, evaluate this angular momentum. (if not, enter zero ) (------ kg.m^2/s ?). b) at what angular speed does the door swing open immediately after the collision? (----- rad/s ?). c) calculate the total energy of...