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After falling from rest from a height of 31 meter, a 0.53 kilogram ball rebounds upward, reaching a height of 21 meter. If the contact between ground and ball lasted 2.2 milliseconds, compute what average force was exerted on the ball?
An AC voltage source has an output of ?V = 163.0 sin(582t) Volts. Calculate the RMS voltage. What is the frequency of the source?
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
q1. a 48-m length of wire is stretched horizontally between two vertical posts. the wire carries a current of 64 a and
The thickness of the bubble is 115nm and the bubble is illuminated by white light at normal incidencewhat colors(wavelengths) are transmitted throug the bubble
A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v1 = 0.60c in one direction, What speed does the first escape pod measure for the second escape pod
During the propulsive phase of a dive (pushing off the diving board), the net vertical and horizontal forces were 100 N and -100 N, what was the net angular impulse applied to the body
Two equal positive charges of magnitude q1 = q2 = 6 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. (a) What is the magnitude and direction of the electric field on the x axis at x = 6 cm? b) What is the force exerted on a third charge q0 = 4 n..
When light of wavelength 350 nm is incident on a metalsurface, the stopping potential of the photoelectrons is 0.500 eV. What is the threshold frequency? What is the maximum kinetic energy of the electron (ineV)? What is the work function of the m..
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A typical coal-fired plant generates 1000 MegaWatts of usable power at an overall thermal efficiency of 35%, What is the rate of heat input to the plant
A wire cable is rated to have a maximum power of 308 W. If the potential difference is 110 V, what maximum current can the wire handle
A bicycle has wheels with adiameter of 0.640 m. Find the linear acceleration of the bicycle
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