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A proton and a alpha particle are released from rest when they are 0.225 mm apart. The alpha particle ( a helium nucleus) has essentially four times the mass and two times the cahrge of a proton. Find the maximun speed and maximun acceleration of each of these particles. When do these maxima occur: Just the following the release of the particles or after a very long time?
It is observed that the size of a real image formed by aconcave mirror is four times the sizeof the object when the object is 34.5cm in front of the mirror. What is the radius of curvature of this mirror
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 21.0° below the horizontal. Find the height from which the ball was thrown
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.4. find the resulting angular speed of the student and the stool
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
A 50 kg person on a merry-go-round is traveling in a circle with a radius of 2 m at a speed of 6 m/s. How does it compare with the person's weight
A 0.80 kg framed picture hangs by a light wire on a nail. The 50 cm long wire is attached to both ends of the 40 cm wide picture frame, What is the tension in the wire
A softball of mass 0.200 that is moving with a speed of 7.1 collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 3.4 .Calculate the velocity of the target ball after th..
Two charged dust particles exert a force of 4.30×10-2 N on each other. What would be the force if they are moved so they are only one-sixth as far apart.
find the tension in the tight rope
Suppose the pressure of the gas equals to p=aV^2, where a is constant. Find the heat transfer to the gas during this process if this is a reversible change.
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