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What force is needed so that a 100 Kg box moving on a frictionless floor on a straight line at the speed of 1 m/s keeps moving for another 100 minutes in the same direction at the same speed?
A 0.15 kg particle moving to the left with a speed of 0.05 m/s, Determine the final velocity of each particle and the fraction of total energy transferred to the 0.27 kg particle
The United States uses 1.12×1019J of electrical energy per year. How many kilograms of uranium would have to be mined per year to provide that much 235U
Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 200 N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skis run out of fuel after only 10 s. What is Sam's top speed? ..
Draw the free-body diagram for the block. Determine the block's acceleration as it slides down the inclined plane. Is your answer reasonable? Why or why not?
You are standing on the ground at the origin of a coordinate system. Determine the magnitude and orientation of the airplane's position vector at t = 70.0 s
A mountain climber jumps a 3.0m wide crevasse by leaping horizontally with the speed of 8.00 m/s. If the climber's direction of motion on landing is 45 degrees, what is height difference between the two sides of the crevasse? Where does the climbe..
A solar cell generates a potential difference of 0.0984 V when a 500 ? resistor is connected across it, What is the internal resistance of the solar cell
Point A of the link BA has a downward velocity of Va = 2 m/s during an interval of it's motion. For the position where Φ = 30 degrees determine the angular velocity W of AB and determine the velocity (Vg) of the midpoint G of the link. Solve the ..
A 2.5-cm-tall object is 24cm to the left of a lens with a focal length of 12cm, Calculate the distance between image and the second lens
The drawing shows two situations in which charges are placed onthe x and y axes. They are all located at the same distance of 3.0 cm from the origin O.For each of the situations in the drawing, determine the magnitudeof the net electric field at the ..
At a distance of 14000 kilometer from some planet's center, the acceleration of gravity is 32 m/s2. Estimate what is the acceleration of gravity at a point 28000 kilometer from the planets center
Unpolarized white light is incident on a polarizer and then falls on an analyzer whose TA (Transmission Axis) makes an angle of ?= 23.5? with the polarizer. What is the fraction of the original light transmitted through both the polarizer and analy..
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