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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)
A proton and an alpha particle after being accelerated through same potential difference enter a uniform magnetic field the direction of which is perpendicular to their velocities
A 1035 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 5.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 16 km/h. The car now ..
Suppose the charge of one is increased by twenty seven times while the charge of the other is reduced to one-third its initial value. What would their separation distance have to be changed to in order to keep the force between them the same?
A 35 g bullet moving at 475 m/s strikes a 4.20 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 270 m/s. How fast is the bag moving when the bullet exits.
A 100 meter length of steel changes temperature by 30 C during the course of a day. If the coeffcient of thermal expansion of steel is 12 parts per million per C, what is the change in length of the steel
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 34.3m/s2. Find the maximum height ymax reached by the rocket
A baseball pitcher can throw a ball with a speed of 40m/s . He is in the back of a pickup truck that is driving away from you. What is the speed of the truck
A 1,500kg Jeep is parked on a 30? slope, facing uphill (this is been done in right now in "Camp Jeep" en el Hiram Bithorn). Find the normal force exerted by the road on the front wheel
At the instant of engine burnout, the rocket has risen to 52 m and acquired a velocity of 40 m/s. The rocket continues to rise in unpowered flight, reaches most height and falls back to the ground.
Assume that ABC has no Section 751(c) or 751(d) assets and ignore the accrual of interest on the partnership mortgage liability. If A accepts D’s offer, illustrate what is the amount and character of A’s gain or loss?
Water flows over a section of Niagara Falls at the rate of 1.1 x10^6 kg/s and falls 55 m. How much power is generated by the falling water.
An airplane needs to reach a velocity of 407 km/h to take off. On a 2000m runway, what is the least acceleration necessary for the plane to take flight.
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