Physics
A 1500 kg car moving east at 15 m/s collides with a 1730 kg car moving south at 15 m/s and the two cars stick together. What is the velocity of the cars right after the collision? How much kinetic energy was converted to another form during the collision?
Physics
Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 = 17 kg and...
Physics
Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical, as shown. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 =...
Physics
What velocity does the other glider have?
Physics
Two identical gliders on an air track are held together by a piece of string, compressing a spring between the gliders. While they are moving to the right at a common speed of 0.52 m/s, someone holds a match under the string and burns it, letting the spring force the gliders a...
Physics
A cannon on a railroad car is facing in a direction parallel to the tracks. It fires a 99 kg shell at a speed of 105 m/s (relative to the ground) at an angle of 60.0° above the horizontal. If the cannon plus car have a mass of 5.5 104 kg, what is the recoil speed of the ca...
Photography
balloons, streamers, toys, bows, a cake
Physics
A 0.15 kg baseball is pitched with a speed of 35 m/s (77 mph). When the ball hits the catcher's glove, the glove moves back by 2.7 cm (1.08 in.) as it stops the ball. Assuming a constant acceleration of the ball, what was the average force applied by the catcher's glove?
Insulin Levels/Appetite
I am pretty sur it is b
Physics
A 3.9 kg body is initially moving northward at 15 m/s. Then a force of 13 N, toward the east, acts on it for a time of 3.8 s. At the end of that time, what is the body's final velocity? (magnitude and direction)
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