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A 140 g ball moving at 0.50 m/s in the + x-direction is subject to a 0.15 N force in the - y-direction for 3.0 s . a) Find the magnitude of the ball's momentum change. b) Find the ball's final speed. c) Find the angle between the ball's final velocity and the positive x direction.
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 71 K under conditions of constant pressure. how much heat is required
A magnetic B field with strength 1 T passes through a metal square loop measuring 0.8 m on its side. If the B field is parallel to the loop's normal
A model rocket is launched straight upward with the initial speed of 70m/s. It accelerates with a constant upward acceleration of 3 m/s2 until its engines stop at an altitude of 180 m.
A cyclist is coasting at a steady speed of 16m/s but enters a muddy stretch where the effective coefficient of friction is 0.55. What will be his speed upon emerging
A wedding ring (of diameter 1.7 cm) is tossed into the air and given a spin, resulting in an angular velocity of 12 rotations per second. The rotation axis is a diameter of the ring. Taking the magnitude of the Earth's magnetic field to be 4.3 10-5 T..
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A conducting sphere that carries a total charge of +25 µC is placed at the center of a conducting spherical shell that also carries a total charge of +25 µC, find the total charge on the outer surface of the shell
Most materials will expand when the temperature is increased. The change in size will depend on several factors, including the original size, What is the fractional change in length
An elevator can lift a 113 N aircraft a distance of 28 meters in 10 s. what is the power output of the elevator
A 1.12-kg aluminum pot contains 2.25 L of water. Both pot and water are initially at 19.1 °C. How much heat must flow into the pot and the water to bring their temperature up to 95.0 °C
Two charged bodies exert a force of .145N on each other. If they are now moved so they are one fourth as far apart, what force is exerted.
christian ramirez a small 0.12kg metal ball is tied to a very light sting 0.80m long to form a pendulum that is then
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