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Two railroad freight cars with masses 130 (Mg) and 170 (Mg) approach with equal speeds of 0.330 (m/s). They collide, the lighter car rebounding opposite its original direction at 0.310 (m/s).
Find the velocity of the heavier car after the collision. Assume the original direction of the lighter car is positive.
What fraction of the original kinetic energy was lost in this inelastic collision?
A student at another university repeats the experiment you did in lab. Her target ball is 0.860 m above the floor, What is the kinetic energy (in joules) of the target ball just after it is struck
Monochromatic blue light that has a frequency of 6.5e14 Hz is traveling through a piece of flint glass (n=1.66). what angles incidence result in total internal reflection
question1a blocks slides all along a track that descends through distance h. the track is frictionless except for the
Suppose a straight 1.35mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, What current would the wire carry
A block of mass 2 kg travels along a horizontal frictionless surface with velocity 3 m/s. What impulse was delivered to mass m
Find the flux of Earth's magnetic field of magnitude 5.00 cross 10-5 T through a square loop of area 20.0 cm2 for the following when the field is perpendicular to the plane of the loop
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
You are given a parallel plate capacitor that has plates of area 4.00 m2 which are separated by 0.0100 mm of nylon, Calculate what the applied voltage in kV should be for this capacitor
Earth's radius is 6.37 106 m. Illustrate by what percent does the Moon's gravitational pull on you increase?
Calculate the escape velocity for a planet that has twice the mass of Earth and is half the size of Earth
A cosmic-ray proton is moving at such a speed that it can travel from the Moon to Earth in 1.5s. At what fraction of the speed of light is the proton moving
At t=0, a proton is moving with the speed of 5.5×10^5 m/s at an angle of 30 degrees from the x-axis, as shown in the figure. A magnetic field of magnitude 1.5 T is pointing in the positive y-direction. What would be the y-coordinate of the proton ten..
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