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A rifle with a weight of 30 N fires a 6.0-g bullet with a speed of 200 m/s.
(a) Find the recoil speed of the rifle.
m/s
(b) If a 775-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.
find out the average force exerted on the bullet by the expanding gases as the bullet moves through the length of the 50 cm barrel.
The detective who investigated the scene of the crime found a second bullet, from the shot that missed Mr. Wesson, that had embedded itself into a chair.
A 206 n sign hangs from the end of a 3.30 m long bar. find the two forces exerted by bolts A and B
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). What is the latent heat of fusion of the unknown material
A proton, which is the nucleus of a hydrogen atom, can be modeled as a sphere with a diameter of 2.4 fm, what is the density of the proton
What centripetal force will the ride exert. How far should the stone fall so that the pulley has 6.50 J of kinetic energy.
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo, Describe and explain how the velocity varies with time, and make a plot of Vy against t
A fathom is a method for measuring lengths, usually reserved for measuring the depth of water. what is the distance in fathoms
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
What is the greatest mass that can be accelerated upwards at 2.9 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, that is 2.2 108 Pa.
A heat pump is found to remove 2400 J of heat from the exterior of a house and deliver 3500 J of heat to the interior of the house
Establish the speed of transverse waves on a string under a tension of 80.0 N if the string has a length of 2 m and a mass of 5 g. (b) Calculate the power required to create these waves if they have a wavelength of 16 cm and an amplitude of 4 cm.
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