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1. A 30-06 caliber hunting rifle fires a bullet of mass 0.0129 kg with a velocity of 602 m/s to the right. The rifle has a mass of 5.17 kg. What is the recoil speed of the rifle as the bullet leaves the rifle? Answer in units of m/s.
2 A. When a 0.8 kg baseball is hit, its velocity changes from 22 m/s to 26 m/s. What is the magnitude of the impulse delivered with the bat to the ball? Answer in units of N· s.
B. If the base ball is in contact with the bat for 1.3 ms, what is the average force exerted with the bat on the ball? Answer in units of kN.
3. A 0.16 kg ball of dough is thrown straight up into the air with an initial speed of 16 m/s. The acceleration of gravity is 9.8 m/s2.
A. What is its momentum at its maximum height? Answer in units of kg m/s.
B. What is its momentum halfway to its maximum height? Answer in units of kg m/s.
A certain charge Q is divided into 2 parts. One is q and the other Q-q. If the 2 charges are then separated by a distance r, what should be the relation among Q and q such that the electrostatic repulsive force is maximum among the charges?
An electron going east with speed ve = 0.4c collides with a proton going north with speed vp = 0.3c. This collision will create a photon. Find the direction of the photon
If astronauts could travel at 0.970c, we on earth would say it takes (4.20/0.970) = 4.33 years to reach Alpha Centauri, 4.20 light-years away. How much time passes on the astronauts clock? What is the distance to Alpha Centauri as gauged by the astro..
an 97.6 g lead ball is dropped from rest from a height of 4.57 m. the collision between the ball and the ground is
An escalator joins one floor with another one 8.20 m above. The escalator is 13.3 m long and moves along its length at 62.0 cm/s. What power must its motor deliver
a rock is sliding alone a horizontal surface with a veolcity of 8.5 ms . it eventually stops due to friction. what is the power produced by the fricition
Electrons are ejected from a certain metallic surface with speeds ranging up to 4.2 105 m/s when light with a wavelength of ? = 615 nm is used. What is the work function of the metal?
A hypodermic syringe contains a medicinewith the density of water. The barrel of the syringe has across-sectional area of 2.50x10^-5 m^2. Determine the medicine flow speed through the needle
question 1 a golfer hits a shot to a green that is elevated 2.80 m above the point where the ball is struck. the ball
One design challenge for a capacitor-powered electric car is that the voltage would change with time as the capacitors discharge. what fraction of energy would still be left
Four identical charged particles (q = +18.0 µC) are located on the corners of a rectangle as shown in the figure below. The dimensions of the rectangle are W = 14.0 cm and L = 58.0 cm. Compute the change in electric potential energy of the system as ..
Suppose the mirror is misaligned, so that the actual angle between the normal to the surface and due south is too large by 0.003°. By how many meters (due east) will the reflected ray miss the detector
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