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1) A 170g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.23. A force of 29N compresses the spring 12cm.
- If the spring is released from this position, how far beyond its equilibrium position will it stretch on its first cycle?
2) Determine the escape velocity from the Sun for an object at the Sun's surface (r=7.0×105km, M=2.0×1030kg).
Determine the escape velocity from the Sun for an object at the average distance of the Earth (1.50×108km).
What is the gravitational force between the earth and the moon? The earth mass is 6 x1024 kg the moon mass is 7.4 x 1022 kg and the distance between their centers of mass is 3.8 x 108 m
A skier is gliding along at 3.6 m/s on horizontal, frictionless snow. He suddenly starts down a 10 degree incline. His speed at the bottom is 17 m/s. What is the length of the incline
A nucleus of oxygen-15 undergoes electron capture. Write out the reaction equation and determine the identity of the daughter nucleus
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
The Black hole at the center of the milky way galaxy is estimated to contain about 4 million solar masses, find the Scwarzchild radius of our galaxy's black hole
The 6.5 kg box has acceleration to the left of 3.50 m/s^2. There is an applied force of 50 N acting on the box. Determine the magnitude of the friction acting on the box
A slide of an onion cell is placed 12 mm from the objective lens of a microscope. The focal length of the objective lens is 10.0 mm. What is the magnification of this image? How far from the lens is the image formed? What is the final magnification o..
A short train (an engine plus four cars) is accelerating at 2.00m/s2. What is the force of the engine on the first car
A professor drives off with his car (mass 900 kg), but forgot to take his coffee mug (mass 0.33 kg) off the roof. What is the maximum acceleration of the car
A horizontal aluminum rod 4.8 cm in diameter projects 5.6 cm from a wall. A 1200 kg object is suspended from the end of the rod, Find the shear stress on the rod
would you be willing to back financially an inventor who is marketing a device that she claims takes in 25000j of heat
a ball is thrown upwards with an initial velocity of 10 ms. find the time for its maximum height and also find its
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