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Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. The skis have a thrust of 150N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skis run out of fuel after only 11s .
What is Sam's top speed? (Express Answer in 2 sig figures & correct units)
How far has Sam traveled when he finally coasts to a stop? (Express Answer in 2 sig figures & correct units)
You drop 500 g of ice at -35oC into a bucket of water (1200 g) at 45oC. Find the final temperature of the system
Six uncharged capacitors with equal capacitances are combined in series. The combination is connected to a 7.39-V battery, Find the capacitance of each capacitor
If the bullet has a mass of 21.0 g and a speed of 235 m/s, explain how high will the block rise into the air after the bullet becomes embedded in it?
A car is traveling north at 17.7m/s. After 12s its velocity is 14.10m/s in the same direction. Find the magnitude and direction of the car's average acceleration.
A door of width 1.0 and height 2.0 weighs 279 and is supported by two hinges, one a distance 0.500 from the top and the other a distance 0.50 from the bottom. Each hinge supports half the total weight of the door.
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
The figure shows two 22.7 kg ice luges that are at rest and placed a short distance apart, one directly behind the other. What are the final speeds of the first luge
The velocity of the car at the end of the fifteen-second period is +20.6 m/s. The ratio of the average acceleration values is a1/a2 = 1.50. Find out the velocity of the car at the end of the initial ten-second interval.
A swimming pool has dimensions 32.0 m ? 12.0 m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water. What is the force exerted by the water on the bottom
A skateboarder, starting from rest, rolls down a 13.1-m ramp. If the ramp is inclined at 26.5 ° with respect to the ground, what is the component of her acceleration that is parallel to the ground
A bicycle wheel of mass M (assumed to be concentrated at its rim) and radius R is mounted horizontally so it may turn without friction on a vertical axle. A dart of mass mo is thrown with velocity vo above and sticks in the tire.
A scientist notices that an oil slick floating on water when viewed from above has many different rainbow colors reflecting off the surface. What is the minimum thickness t of the oil slick at that spot
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