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The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v =(-4.30*10^7)t^2+(2.25*10^5)t. The acceleration of the bullet as it leaves the barrel is zero.
(a) Determine the acceleration and position of the bullet as a function of time when the bullet is in the barrel. use t as necessary and round all numerical coefficients to exactly 3 significant figures.
(b) Determine the length of time the bullet is accelerated.
(c) Find the speed at which the bullet leaves the barrel. (d) What is the length of the barrel?
(d) What is the length of the barrel?
Calculate the force between two objects that have masses of 70 kg and 2,000 kilograms separated by a distance of 1 meter. Calculate the force between two touching grapefruits each with a radius of 0.08 meters and a mass of 0.45 kilograms.
If it is orbital velocity that keeps the electron orbiting the protron and as its energy decays does it get drawn into the innerrings till it get drawn into thr proton to become a neutron?
You stand in the earth's magnetic field, directly facing it's horizontal component ( in other words, facing magnetic south). Compute the outward flux through your body's back surface
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A tank is 2m above the connection to the water controls. The water then travels up a vertical pipe to the shower head 3.5m above the water controls. Determine the water pressure at the shower controls
A beam of 1 ev neutrons with beam density 10^3 cm^-3 strikes a 1 micron thick pure gold target. If the beam cross section projection on the target is 1mm^2 and the total interaction cross section is 99 b, what is the interaction rate in the target?
A 2.9 kg block is released from rest on a 45° inclined ramp. The block will lose energy to friction at a constant rate of 4 J/m as it slides down the ramp
A capillary tube is being used to measure the viscosity of a Newtonian liquid, Estimate the viscosity coefficient for the liquid if a pressure of 2.5 kPa is required to maintain a flow rate of 1 kg/s
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