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A large football player student (1.0 x 10^2 kg) applies a 6.0 x 10^2 N force to another equally burly student (1.0 x 10^2 kg) sitting on a sled (13.2 kg). If sliding friction and air resistance (drag) is 99.5 N, find the acceleration of the sled. In addition, how much force does the football player need to apply to the ground to accomplish this feat? Remember, he needs to get himself moving too!
A laser beam of wavelength 488.0 nm is shined on a grating of grating constant 15000 lines per inch. What is the maximum order can be observed
A 50-kg diver steps off a 10-meter high platform at the local pool. She comes to rest 3.0 meters below the surface of the water
what characteristic of a fluid would greatly increases the physical and mathematical complexity of fluid mechanics?
Two charges q1 = 7 µC, q2 = -33 µC, are L = 14 cm apart. A third charge is to be placed on the line between the two charges. How far from q1 should the third charge be placed so that the net electric force on the third charge is minimized?
An object hanging in air, as in Figure A below, caused the scale to balance at 0.420 kg. When the object was submerged in water, what is the density of the object
Consider a bicycle wheel rotating about it's axel. If it is rotating at 2 revolutions per second, and the radius of the wheel is 0.35 m, what is the kinetic energy of the rotating wheel
at three corners of a rectangle length 11.8 cm height 5.9 cm the following charges are located q1 upper left corner q2
A 0.100 meter long solenoid has a radius of 0.05 and 1.5e4 turns. The current in the solenoid is 6 Amp. Compute what the magnetic flux through the loop
A 200 g block is pressed against a spring of force constant 1.40 kN/m until the block compresses the spring 10 cm. The spring rests at the bottom of a ramp inclined at 60.0 degrees to the horizontal.
A 52kg ballet dancer stands on her toes during a performance with four square inches (26cm2) in contact with the floor. What is the pressure exerted by floor over the area of contact in some cases.
Determine the speed at which Superman (mass=79.0 kilogram) must fly into a train (mass = 19186 kilogram) traveling at 85.0 kilometer per hour to stop it
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
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