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The edges of a cube consist of equal resistors of resistance R, which are joined at the corners. Let a battery be connected to two opposite corners of a face of the cube. What is the effective resistance?
in an alcohol-in-glass thermometer the alcohol column has length 11.84 cm at 0.0 degrees c and length 22.87cm at 100.0
An object 1,75 cm high is placed 36 cm in front of a concave mirror of focal length 12 cm. Calculate the image distance and image hight mathematically; state if the image is real or virtual and include a ray diagram in your answer.
A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drivestraight back toward the pitcher at 52.0 m/s. calculate the average force between the ball and bat during contact
a pendulum of length 50 cm is pulled 30 cm away from thevertical axis and released from rest. What will be its speed at the bottom of its swing
Evaluate the magnitude of the apparent weight of a 84 kg astronaut 4500 km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.1 m/s^2?
makes an angle of 45 degrees with the horizontal by an external force. The object moves up the incline a distane 3m. What is an increase in the gravitational energy of the object
question how does the falling mass play a role? will twice the mass require twice the stopping force if it is brought
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. Calculate the apparent thickness of the plate as viewed from above the water
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. The ball leaves the club at a speed of 18.0 m/s at an angle of 44.0° above the horizontal. It rises to its maximum height and then falls down to the gree..
A solar cell provides an emf of 0.20 V. If the cell supplies a constant current of 21.5 mA for 8.0 h, how much electrical energy does it supply
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with constant acceleration, How fast was he going when he hit his brakes
A boy pulls with a force of 20 N on the 300 N wagon. What acceleration does the wagon have
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