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A 0.250 kg ball of Plasticine moving 5.0 m/s overtakes and collides with a 0.3000 kg ball of Plasticine, traveling in the same directiion at 2.0 m/s. The 2 balls of Plasticine stick together pm collison. What is their speed after the collision.
Three resistors with values 1.0 , 2.2 , and 5.5 , respectively, are connected in parallel in a circuit with a 5.0 V battery. What is the total equivalent resistance
an 80 kg person in outer space is at rest when he catches a 10 kg asteroid moving at 15ms. what is the final velocity
A laser beam of unknown wavelength passes through a diffraction grating having 5510lines/cmafter striking it perpendicularly. At what angle will the next pair of bright spots occur
The motor of a ski boat generates an average power of 7.70 104 W when the boat is moving at aconstant speed of 15 m/s. When the boat is pulling a skier at the same speed, the engine must generatean average power of 8.70 104 W.
A 4.7-g bullet leaves the muzzle of a rifle with a speed of 334 m/s. What force (assumed constant) is exerted on the bullet
How much work done against force of gravity
If the diameter of the hole is 9.00cm at 20 degree C and the temperature of the oven is 200 degree C, what will be the new area of the hole
Laser light from Earth is received for an experiment by an Earth satellite. Is the light redshifted or blue- shifted? What happens to the light if it is re?ected back to Earth?
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
When at rest a proton experiences a net electro magnetic force of magnitude 8.8 multiplied by 10-13 N pointing in the positivex direction. When the proton moves with a speed of1.4 multiplied by 106 m/s in the positivey direction the net electromagnet..
1 salt crystals will form saltwater as the water evaporates. a salt crystals is much more ordered than salt dissolved
The density of metal mercury is 13.6 g/cm3. What is this density as expressed in kilograms per cubic meter
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