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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.
A table in a physics classroom
Three different expressions for the centripetal acceleration as a function of time are given for an object moving in a circle. In each case, determine the graph that best represents the variation of the tangential acceleration with time.
q. a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a
a 56kg student runs at 5.0 m/s, grabs a hanging rope, and swings out over a lake (as shown). He releases the rope when his velocity is zero, draw the FBD of the student on the rope
A costume jewelry pendant made of cubic zirconia is submerged in oil. A light ray strikes one face of the zirconia crystal at an angle of incidence of 18o. what is the ray angle with respect to the face of the crystal
In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. what is the velocity of the ball
A 1000Hz sound travels through pure oxygen. The wavelength of the sound is measured to be 0.65m. What is the speed of oxygen?
One trajectory that can be used to send spacecraft from Earth to Mars is an elliptical orbit that has Sun at one focus, its perihelion at Earth, Find the semimajor axis of the ellipse
In a simple model for a radioactive nucleus, an alpha particle ( m = 6.64 * 10^-27 kg) is trapped by a square barrier that has width 2.0 fm and height 30.0 MeV. What is the tunneling probability
A projectile is fired horizontally from a gun that is 79.0 m above flat ground, emerging from the gun with a speed of 250 m/s. How long does the projectile remain in the air?
A whale swims due east for a distance of 1.5 km, turns around and goes due west for 5.7 km, and finally turns around again and heads 4.5 km due east. What is the total distance traveled by the whale
When doing a sound experiment, you recorded the sound of a single frequency sound when it was stationary. What frequency did you hear as your friend rode away from you
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