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While exploring a cave, a spelunker starts at the entrance and moves the following distances. She goes 75.0 m north, 250 m east, 125 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.
Four identical masses of 3.2 kg each are located at the corners of a square with 1.1 m sides. What is the net force on any one of the masses
If the current in the solenoid increases uniformly from 0 to 4.1A in 0.70s , what will be the induced emf in the short coil during this time
A thin, 80.0 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.300 J of kinetic energy
A girl was walking along the street. In the first 7 minutes she walked eastward for 692 m. Then she found out she lost her purse and went back. Calculate her average speed in this process
A satellite is orbiting EArth at a distance o f 35 kg. The satellite has a mass of 500 kg. What is the force between the planet and the satellite? Check the units.
A conducting slab (think of a large flat sheet of metal) is large compared to the size of individual particles and molecules, Where does the excess charge reside
As a city planner, you receive complaints from local residents about the safety of nearby roads and streets, Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed ..
Suppose you aim to suspend in air a perfectly reflecting 4cmx4cm surface, with mass m = 0.00045kg. What intensity of light must you shine on it
a particle m1 1.99 kg moving at 30.0deg downward from the horizontal with v1 2.25 ms hits a second particle m2 2.99
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 8.77 m, what is the magnitude of the astronaut's linear speed
evaluate what value of the distance d should a driver locate his car if he wishes to stay on a circular path without depending on friction?
Lead has a greater density than iron, and both are denser than water. Is the buoyant force on each one the same? Explain
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