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A teacher sends her students on a treasure hunt. She gives the following instructions:
1. Walk 300 m north
2. Walk 400 m northwest
3. Walk 700 m northeast and the treasure is buried there.
As all the other students walk off following the instructions, Joe physics student quickly adds the displacements and walks in a straight line to find the treasure. How far and in what direction does Joe need to walk?
Three kg of gas in a piston-cylinder assembly undergo a process during which the relationship between pressure and specific volume is pv 0.5=constant. Determine the final specific volume
A horizontal pipe contains water at a pressure of 150 {rm kPa} flowing with a speed of 1.30 {rm m/s}. The pipe narrows to one-half its original diameter. What is the speed of the water.
An uncharged nonconductive hollow sphere of radius 12.0 cm surrounds a 14.0 µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. Calculate..
A ball is thrown straight up from the ground with speed v 0 . At the same instant, a second ball is dropped from rest from a height H , Find the time at which the two balls collide
A transformer has 450 turns in its primary coil and 30 turns in its secondary coil. Which one of the following statements concerning this transformer is true? This is a step-up transformer. The turn’s ratio is 15 for this transformer.
A swimmer is 60 m from shore in a river flowing at 4m/s. The swimmer swims at 6m/s. The swimmer heads 15 degrees upstream. How many meters downstream (from the starting position) does the swimmer reach shore?
Determine the energy of the incident electron. How many coulombs of protons and electrons are in each penny.
Problem 1: Two point charges are placed 2.0 cm apart. They are fixed in place so that they do not move. a. A small ball of charge 3.0 x 10-9 C is placed at point A. the ball is small enough that it can be treated as a point charge.
a single-turn square loop of side l is centered on the axis of a long solenoid. in addition the plane of the square
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Determine the speed of the wagon after the rock is thrown
An initially empty beaker, in the shape of a cylinder by cross-sectional area A, is left out in the rain. The raindrops hit the beaker vertically downward with speed v. The rain continues at a constant rate so the height of the water in the beaker h(..
What is the relationship between current and magnetic force, What is the relationship between the length of the wire and the magnetic force
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