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a barefoot field-goal kicker imparts a speed of 42 meters per second to a football initially at rest. if the football has a mass of .43 kg and the time of contact with the ball is .034 seconds, what is the force exerted by the ball on the kicker's foot? answer in units of newtons.
A proton (mass 1.67*10 ^-27 kg) is moving at 1.40*10 ^-6 m/s directly toward a stationary helium nucleus (mass 6.64*10 ^-27 kg), After a head-on elastic collision, what is the helium's velocity
A photon energy 500KeV undergoes Compton scattering from the proton that is initially at rest. (a) what is the recoil Kinetic energy of the proton in eV?
a compute the order of magnitude of the mass of a bathtub half full of water. bathtub. assume the tub measures 1.3 m by
water vapor is a polar gas whose diellectric constant exhibits an appreciable temperature dependence .the following
The Hall effect can be used to determine the density of mobile electrons in a conductor. Find the density of mobile electrons in the material
One solenoid is centered inside another. The outer one has a length of 51.0 cm and contains 6800 coils, What is the mutual inductance of these solenoids
What is the wavelength of light for the least energetic photon emitted in the Balmer series of the hydrogen atom spectrum lines
a rifle with a muzzle velocity of 470 ms shoots a bullet at a target 49.6 m away. how high above the target must the
A stick with a length of 1m is supported by a knife edge at the 50 cm mark (middle). Two masses m1: 0.4 kg and m2: 0.6 kg are hanging.. m1 20 cm from the left end, Calculate the torque created by m1
If a satellite is placed in orbit about the earth at adistance 2.7 times the earth's radius, what will its velocity be? How many days will it take to circle the earth
A piece of aluminum with a mass of 2.0 kg and density of 2700kg/m^3 is suspended from a string and then completely immersed in acontainer of water. Determine the volume of the piece of aluminum
What is the longest focal length lens that will work?
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