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Elastic Collisions: A 2 kg object moving 4 m/s to the right collides elastically with a 4 kg object moving 1 m/s to the left. (using both momentum and kinetic energy conservation)
Calculate their final velocities.
The surface area of the container lid is A = 0.0085 m2. The air pressure in Denver is PD = 81000 Pa. and in New Orleans is PNO = 101500 Pa. Assume the lid is weightless. Write an expression for the force FNO required to remove the container lid in ..
A piece of charcoal used for cooking is found at the remains of anancient campsite. Find the age of the charcoal
A 75 human sprinter can accelerate from rest to 10 in 3.5 . During the same interval, a 34 greyhound can accelerate from rest to 17, evaluate the average power output for each
A 2.70 kg block is in equilibrium on an incline of 34.8? . The acceleration of gravity is 9.81 m/s 2 . What is Fn of the incline on the block?
Each of two spaceships has proper length L. One of the spaceships travels away from the Earth at speed V. The other follows at a speed 2V and passes the first. Find how long does the second spaceship take to pass the first
Yang can focus on objects 150 centimeter away with a relaxed eye. With a full accommodation, she can focus on objects 20 centimeter away. find what will her near point be while wearing her glasses
the rotor in a certain electric motor is a flat rectangular coil with 87 turns of wire and dimensions 2.61 cm by 4.12
a skateboarder is moving at a constant velocity of 1.75 ms when she starts up an incline that causes her to slow down
Normal human body temperature is about 37 degrees Celsius, what is the body temperature in Kelvins? Show the work.
A physics book slides off a horizontal tabletop with a speed of 2.70m/s . It strikes the floor in 0.350s . Ignore air resistance. Find the height of the tabletop above the floor
A circular loop in the plane of the paper lies in a 0.75 Tmagnetic field pointing into the paper. what is the direction of the induced current
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. A friend spins the front wheel, of radius 0.386 m, and observes that drops of water fly off tangentially in an upward direction, find the magnitude of the averag..
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