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Two ice skaters approach each other at rightangles. Skater A has a mass of 67.3 kg andtravels in the +x direction at 2.84 m/s. SkaterB has a mass of 32.6 kg and is moving in the+y direction at 1.72 m/s. They collide andcling together. Find the final speed of the couple. Answer in units of m/s.
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another, What is the speed of the second train
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
The equation connectin s,p, and f for a simple lens can be employed for spherical mirrors, too. A concave mirror with a focal length of 8cm forms an image of a small object placed 10cm in front of the mirror. Where will this image be located?
A 4000 kilogram truck is parked on a 15o slope. Determine how big is the friction force on the truck
A man is lifting a 210 Newton object. His spine and back are a uniform rod of weight at 320 Newton. Evaluate what is Compression force
cientists want to place a 2700.0 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.4 times the radius of Mars above the surface of the planet. What should the radius of the orbit be
the temperature of a plastic cube is monitored while the cube is pushed 2.4 m across a floor at constant speed by a
Air in a cylinder is compressed to one-tenth of its actual volume without change in temperature. Obtain what percentage of the molecules has escaped
.5 kg glider, attached to the end of the ideal spring with force constant k=450 N/m, undergoes SHM with amplitude of 0.04 m. Compute: The maximum speed of the glider; The total mechanical energy of the glider
An archer wishes to shoot an arrow at a target at eye level a distance of 43.5 m away. what angle should the arrow make with the horizontal
A 1450 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1270 N object hangs from its end. Find the tension in the cable holding up the boom
The four tires of an automobile are inflated to a gauge pressure of 2.04E+5 Pa. Determine the weight of the automobile
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