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A system consists of three blocks with masses (from left to right) of 3.67 kg, 1.06 kg and 7.69 kg. The leftmost block has a velocity of 3.22 m/s toward the right, the rightmost block as a velocity of 2.59 m/s toward the left. Assuming movement toward the right is positive, what is the center of mass velocity of this system?
When at rest a proton experiences a net electromagnetic force of magnitude 9.4 x 10-13 N pointing in the positive x direction. When the proton moves with a speed of 1.3 x 106 m/s in the positive y direction the net electromagnetic force on it decr..
A bullet of mass 0.5 kilogram is headed at horizontal speed 130 m/s toward a block of mass 4.5 kilogram resting on a horizontal frictionless surface.Find what average force did the block exert on the bullet
Three uniform sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0 to = 2.0 , stick 2 lies along the axis from = 0 to = 2.0 , stick 3 lies along the axis from = 2.0 to =4.0 .
heat engines take input energy in the form of heat use some of that energy to do work and exhaust the remainder.
A metal sphere of radius 13 cm has a net charge of 2.8 x10–8 C. (a) What is the electricfield at the sphere's surface? (b) If V =0 at infinity, what is the electric potential (in V) at thesphere's surface?
The potential at the center of a uniformly charged ring is45 kV, and 15 cm along the ring axis the potential is 33 kV. Find the ring's radius and its total charge.
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
An oven may be regarded as a cube, each side 1.2m long. The oven stands on thin legs and the heat transfer through each of the six faces is identical.
A gas of diatomic molecules is in equilibrium at a temperature of 340 K. What is the mean angular momentum of the molecules
Several governments have subsequently signaled their intention to go to the Moon to mine helium-3 as a fuel supply. Is this a potential and viable solution to our energy problems? What are the pros and cons?
A 200 kilometer long high voltage transmission line 2 centimeter in diameter carries a steady current of 1,000 Amp. find how long does it take an electron to travel the full length of the cable
You are diring a car on a freeway and you happen to be behind a big truck. Estimate the force of the rock on the windshield
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