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Jim's dog Sparky runs 55.0m northeast to a tree, then 70.0mwest to a second tree, and finally 20.0m south to a third tree.
Calculate Sparky's net displacement vector.
When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). find the mass of the ball
A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters
A 30.0g ball of clay traveling east at 1.00m/scollides and sticks together with a 30.0g ball of clay traveling north at 6.00m/s
A spaceship is visiting Planet X. While descending to the surface, its rockets produce 25 kN of upward thrust and the spaceship's speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
How much energy was added to accomplish the transformation. What force must be exerted on the smaller piston to support the load.
A motorist driving along a straight road at a constant speed of 60 -m/s. At time t=0 she passes a parked motorcycle police officer and begins to accelerate at the constant acceleration.
A house is 30.0 ft long and 25.0 ft wide, and has 8.0 ft high ceilings. What is the volume of the interior of the house
A 105-kg water skier floating in a lake is pulled from rest to a speed of 14 m/s in a distance of 25m. What is the net force exerted on the skier, assuming his acceleration is steady.
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potential energy of the nucleus due to electrical forces
A compound microscope has objective and eyepiece focal lengths of 6.1mm and 1.9 cm , respectively. what is the magnification of the instrument
When the door of the Chapel of the Mausoleum in Hamilton, Scotland, is slammed shut, If that echo were due to a single reflection off a wall opposite the door, how far from the door would that wall be
The efficiency of a knife is 75%. If you push down on the knife with a force of 5 N to cut a piece of cake that is 6 cm thick, how much work is done on the cake
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