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Basketball player Darrell Griffith is on record as attaining a standing vertical jump of "m" height. (This means that he moved upward by m after his feet left the floor.) Griffith weighed N. Given m, N
(a) Find what is his speed as he leaves the floor?
(b) If the time of the part of the jump before his feet left the floor was t, what was his average acceleration (magnitude and direction) while he was pushing against the floor?
(c) Find what is the average force he applied to the ground?
Consider an object on an incline where friction is present. The angle between the incline and the horizontal is ?, Find an expression for the acceleration of this object. Treat down the incline as the positive direction
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.045 m2. A second generator has a coil area per turn of 0.015 m2. What magnetic field should be used in the second generator
how long must the engine burn in order to reach this speed. What will be the equilibrium temperature when a 259 block of copper at 258 is placed in a 137 aluminum calorimeter cup containing 836 of water at 16.
a car is driven along a circular track. the track road is flat. the car starting from rest increases its speed
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons. The resulting charge buildup can damage electronic components and disrupt operations. Suppose a spherical metallic satellite 1.3 m in diamete..
A dipole composed of a ±q point charge, separated by a distance d = 2.24e-14 m and aligned parallel with the x axis, Find the expression for the potential on the x axis
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 5021 kg), which is made of steel (? = 7770 kg/m3). How many balls are required to float the ship
A driver travels northbound on a highway at a speed of 28.0 m/s. What frequency does the driver observe as the police car approaches
A resistor draws 5.00A from an ideal 12.0-V battery. If this current is used to calculate the resistance, by what percent will the result be in error
The work function for copper is 4.70 eV. Find the cutoff wavelength for copper
The system is released from rest with the rod horizontal. If the animals can manage to hold on, illustrate what are their speeds as the rod swings through a vertical position?
You pull downward with a force of 24.1 N on a rope that passes over a disk-shaped pulley of mass 1.35 kg and radius 0.0785 m. Calculate the tension in the rope on both sides of the pulley
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