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Ben Ren and Vector Rey are making a series of Force measurements using BB King's Force Probe. BB reports that the force is 0.72. Ben Ren says he feels a disturbance in the force of +/- 0.1. Vectra Rey says that the reading is exactly 0.72 because that is what the BB says. With whom do you agree? Explain your arguments.
A ball thrown in the x-direction at 4.5m/s from a tower that is 20m tall. Calculate the speed of the ball when it hits the ground. Also, determine the distance the ball lands from the tower
Write an expression for the torque required to rotate the cylinder surrounded by a fluid.
A 120cm3 box contains helium at a pressure of 1.50atm and a temperature of 80.0?C. What is the final pressure in each box
How many transitions involving the hydrogen energy levels (solid lines) shown in the diagram correspond to photons of visible light? How many transitions involving the hydrogen energy levels shown correspond to photons of infrared light?
A charged particle has an initial velocity perpendicular to a uniform magnetic field. Now there is friction with the air, assumed to be a force. Determine the charge's subsequent motion
Since the period of a simple pendulum depends only on its length (and g), How long would that standard be, in meters
It has been suggested that rotating cylinders about 9.0 mi long and 6.0mi in diameter be placed in space and utilized as colonies. What angular speed should such a cylinder have so that the centripetal acceleration at its surface equals the free-fall..
A 25 g bullet travelling 250 m/s penetrates a 2 kg block of wood and emerges cleanly at 150 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 3400.0 F and is charged to a potential dissimilarity of 63.0 V. Compute the amount of energy stored in th..
suppose a block with a mass of 3.00 x 105 kg is being lifted by a crane. the boom of the crane makes an angle of 45
A piece of glass has a temperature of 73.0 °C. Liquid that has a temperature of 37.0 °C is poured over the glass, determine the specific heat capacity of the liquid
Light of wavelength 589 nm is used to view an object under a microscope
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