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A basketball player throws a basketball m = 1 kg straight up with an initial velocity of v0 = 6.5 m/s. The ball leaves his hand at shoulder height h0 = 1.85 m. Let gravitational potential energy be zero at ground level. What is the height, hm in meters? Write an expression for the ball's total mechanical energy, Em, in terms of its maximum height, hm.
A steel wire having a mass of 3.50 g and a length of 1.00 m is fixed at both ends and has a tension of 1010 N. Find the frequency of the third harmonic
An underwater scuba diver sees the sun at an apparent angle of 45.0 degrees above the horizontal. What is the actual elevation angle of the sun above the horizontal
A coil of wire is connected to an ideal 12.0-V battery at t = 0. At t = 14.2 ms, the current in the coil is 210 mA. calculate the inductance of the coil
Three charges (q1 = 7.6 ?C, q2 = -4.7 ?C, and q3 = 1.1?C) are located at the vertices of an equilateral triangle with side d = 6.1 cm. q1 is on the bottom left, q2 is on the bottom right, and q3 is at the top.
question a radio station with a power of 20 kw sends out an omnidirectional wave at 1.25 mhz.a. if the electromagnetic
A 20.0 gram bullet is shot horizontally into a 2.00 kg block and quickly becomes imbedded in the block. How much energy is dissipated in the block during the impact
A single loop of area 0.183 m2 is placed perpendicular to a magnetic field of 0.304 T. What is the angular speed of the loop
You find a used battery and discover that it is no longer strong enough to power your CD player. What is the potential difference
Suppose we move along the+y-axis from ya= 0.0 m (where the potential is 2000V) to yb = 2.0 m. Alongthe yaxis in this region, the electric field has amagnitude given by (1200 V/m4)y3 and makes an angle of 60° withthe+y-direction. Find the potential..
A nickel crystal is used as a diffraction grating for x-rays. Then the same crystal is used to diffract electrons. what is the kinetic energy of each electron
A simple pendulum makes 139 complete oscillations in 3.10 min at a location where g = 9.80 m/s2. Find the length of the pendulum
A velocity selector is tuned to let charges with a speed of 325 m/s pass through. If the strength of the magnetic field is 0.250 T, what is the strength of the electric field
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