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The coefficient of linear expansion of a certain solid is 9 * 10^-6/C degrees. Assuming this solid behaves like most solids, what is its coefficient of volume expansion?
a 20.0 microcoloumb charge is placed at 04 cm a 4.00 microcoloumb charge is placed at 22 and an 8.50 microcoloumb
Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. What is the magnitude Fp of the minimum force you need to exert on the crate to make it start sliding along the floor
q1. an engine does 20000 j of work and rejects 6120 j of heat into a cold reservoir whose temperature is 285 k. what
Two bodies having masses m1=30g and m2=40g are attached to the ends of a string of negligible mass and suspended from a light frictionless pulley. Find the accelerations of the bodies and the tension in the string
A hunter wishes to cross a river that is 2.0 km wide and flows with a speed of 5.0 km/h parallel to its banks. What is the minimum time necessary for crossing
An electric vehicle starts from rest and accelerates at a rate of 2.8 m/s2 in a straight line until it reaches a speed of 18 m/s. How far does the vehicle travel from start to stop
A tennis player hits a 58.0g tennis ball so that it goes straight up and reaches a maximum height of 7.05m . A) How much work does gravity do on the ball on the way up? B) How much work does gravity do on the ball on the way down?
a short bar magnet placed with its axis at 30ordm with a uniform external magnetic field of 0.25 t experiences a torque
At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. How deep is the lake
calculate the depth of penetration if skin for the average and maximum beta energies emitted by cobalt-60. provide your
An electron traveling at 194 m/s enters a1.1 T magnetic field. The angle betweenthe velocity and the field is 30o. Find the radius of the resulting circular path
When a potential difference of 12V is applied to a wire 7.1m long and 0.34mm in diameter the result is an electric current of 2.2A. What is the resistivity of the wire
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