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A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the horizontal total force on the driver has magnitude 127 N. What is the total horizontal force on the driver if the speed on the same curve is 23.7 m/s instead?
What are the original charges on each sphere
For a particular collision you detect the emitted products and find 15 protons, 2 antiprotons, 6 positrons, and 25 neutral particles. How many electrons are also emitted?
What is mass of the block of ice
A standard baseball has a circumference of approximately 23 cm. If a baseball had the same mass per unit volume as a neutron or a proton, about what would its mass be?
A ball is thrown horizontally from the top of a building 19.0 m hight and lands 64.7 m from of the building, With what initial speed was the ball thrown
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a highest of 90cm, what was the speed of the bullet at impact with the block.
You have two parallel wires with current flowing in opposite directions, If each current is 2A, and the distance between the two wires is 0.5m, what is the force per meter between the wires
he lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block & the surface is 0.30. The coefficient of kinetic friction between the lower block & the upper block is a..
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 33.5 m/s. It then flies a further distance of 46.9 km and its velocity is 43.1 m/s. Find the airplane's acceleration and calculate how much t..
500 J of work are completed to compress the gas while, in the same process, 1400 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules.
What would be the equilibrium temperature when a 256 g block of copper at 314 °C is placed in a 140 g aluminium calorimeter cup containing 827 g of water at 11.5 °C.
The minimum distance required to stop a car moving at 36.0 mi/h is 48 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming same rate of acceleration.
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