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A orbiting satellite stays over a certain spot on the equator of (rotating) Earth. What is the altitude of the orbit (called a "synchronous orbit")?
a bb gun is fired at a cardboard box m2 1.85 kg on a frictionless surface. the bb has a mass of m1 0.044 kg and
A certain part of an aircraft engine has a volume of 1.2 ft3. Find the weight of the piece when it is made of copper
A box of mass of mass 2 kg is placed on a spring such that when the box is released, the spring will push the box directly upward. what is the maximum height the box will reach
An Olympic long jumper is capable of jumping 8.2 m. Assume that his horizontal speed is 9.1 m/s as he leaves the ground. How high does he go
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 12.0 oc. the
An X-ray tube is similar to a cathode-ray tube. Electrons are accelerated to high speeds at one end of the tube. What speed would this potential difference give to protons
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the surface charge density on each plate
three identical thin rods each of length l and mass m are welded perpendicular to one another as shown in figure
If the elevator's descending speed is measured at 10 m/s at a given point, but its speed is decreasing by 2.7 m/s2, what is a force exerted by the scale.
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
The earth has a vertical electric field with a magnitude of approximately 100 V/m near its surface. What is the magnitudeof the potential difference between a point on the ground and pointon the same level as the top of the Washington Monument (55..
question1a 70-g disk sits on a horizontally rotating turntable. the turntable makes 4 revolutions each second. the disk
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