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An alpha particle (charge+2e, mass 6.63X10^-27 kg) and a proton (charge +e, mass 1.67X10^-27 kg) are separated by 3 micrometers. What is their potential energy? What is the potential midway?
A cannon ball is fired from ground level with a speed of 60.0 m/s at an angle of 58 deg. above the horizontal. what is the speed of the cannon ball when it is directly above the wall
a hole punch has a diamter of 8.0 mm and presses onto ten sheets of paper with a force of 6.7 kN, If each sheet of paper is of thickness .20 mm, what is the shear stress
When the flask and mercury are warmed together to a temperature of 52.0 degrees C , a volume of 8.35cm3 of mercury overflows the flask.If the coefficient of volume expansion of mercury is 1.8 * 10^-4 /K ,
A 26 kg gun is standing on a frictionless surface. The gun fires a .0573 kg bullet with a muzzle velocity of 323 m/s. The positive direction is that of the bullet immediately after the gun was fired. compute the momentum of the gun immedately afte..
A 2.00g bullet strikes a 2.00kg block hanging from a long cord. Find the velocity of the bullet before it collides with the block
A 0.42 kg ball is dropped from rest at a point 1.30m above the floor. The ball rebounds straight upward to a height of 0.580 m. What are the magnitude and direction of impulse of the net force applied to the ball during the collision with the floo..
In a pan on a stove 125 g of water at 100 degrees Celsius is converted to steam. What s the entropy change of water the is now steam
Proper design of automobile braking systems must account for heat buildup under heavy braking.
A sample of an unknown substance appears to weigh 15.1 N in air and 9.18 N when immersed in a solvent with density 0.945 g/mL. Find the density of the sample
A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 15 m/s, skates by with the puck, How long does it take him to catch his opponent
q. 1. what physical quantities can be represented by vectors? why? how do you determine the resultant force of the
an rl circuit in which the inductance is l 4.00 h and the resistance is r 5.00 omegacap.gif is connected to a 21.0 v
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