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A rotating fan completes 1000 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.11 m. Through what distance does the point move in one revolution?
What is the speed of the point?
What is its acceleration?
What is the period of the motion?
The middle C string on a piano is under a tension of 644 N. Find the linear density of the string
Nitrogen and oxygen in their liquid states have densities only 0.80 and 0.90 that of water. Atmospheric pressure is due primarily to weight of nitrogen and oxygen gas in the air. If atmosphere liquefied would its depth be greater or less than 10.30 m..
How high will a 0.32kg rock go if thrown straight up by someone who does 119J of work on it? Avoid air resistance.
Coherent light with wavelength 599 passes through two very narrow slits, and the interference pattern is observed on the screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central b..
q1. a 5.19 g lead bullet travelling at 252 ms is stopped by a large tree. if half the kinetic energy of the bullet is
A satellite of mass 190 kg is placed into Earth orbit at a height of 400 km above the surface. how long does the satellite take to complete one orbit
A piece of wire carries a current I along the x-axis and sits in a magnetic field with field lines in the y-direction. What is the direction of the Lorentz Law
Two people carry a heavy electric motor by placing it on a light board 2.05m long. One person lifts at one end with a force of 405N , What is the weight of the motor
the displacement from hastings to kearney is 36 miles at 12* North of West. find Average Velocity from Hastings to Kearney
Suppose a portable electric heater can be modeled by an Ohmic resistor. If the heater requires 600 Watts to operate, calculate the voltage drop across the heater
Consider the Earth and a cloud layer 900 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
q1. a positive charge of q 3.5 microc is pulled on by two negative charges. one -2.0 microc is 0.050 m to the north
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