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Compute the kinetic energy, in joules, of an automobile of mass 1700kg traveling at a speed of 55.0km/h
By what factor does the kinetic energy change if the speed is doubled?
An archer pulls back 0.75 m on a bow which has a stiffness of 200 N/m. The arrow weighs 50 g. What is the velocity of the arrow immediately after release
The average density of the planet Saturn is 688 kg/m3. The acceleration of gravity on its surface is 11.20 m/s2. Calculate the average radius of Saturn
Three equal point charges, each with a charge of 1.80?C , are placed at the corners of an equilateral triangle whose sides have a length of 0.550m, What is the potential energy of the system
The crates are pulled to the right at a constant acceleration 3m⁄s^2 by a horizontal force F. Calculate (a) the magnitude of the force F and (b) the tension in the rope connecting the blocks. Include the free body diagram or diagrams you used.
A steel section of the Alaskan pipeline had a length of 55.5 m and a temperature of 19.0 deg C when it was installed. What is its change in length
An electron (mass: 9.11x10-31 kg; charge:1.60x10-19 C) moves from location A to location B solely under the influence of conservative forces, what is the speed of the electron at this point
A cylinder with a piston is filled with ideal gas. The gas temperature is held at 500K. find the thermal conductivity of the metal in the rod
A ball with mass 750 g is dropped from a height of 1.25 m. hat is the magnitude and direction of the impulse from the floor that makes the ball bounce
Dave Johnson, the bronze medalist at the 1992 Olympic decathlon in Barcelona, How far does his center of mass move up as he makes the jump
You pull downward with a force of 32 N} on a rope that passes over a disk-shaped pulley of mass 1.2 kg and radius 0.07 5m. Find the linear acceleration of the 0.61 kg mass.
A beaker of mass 1.5kg containing 3.2kg of water rests on a scale. A 3.2kg block of a metallic alloy of density 53400 kg/m is suspended from a spring scale is submerged in water of density 1000 kg/m.
Two stationary positive point charges, charge 1 of magnitude 3.55 and charge 2 of magnitude 2.00 , are separated by a distance of 30. An electron is released from rest at the point midway between the two charges, and it moves along the line connec..
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