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A gun fires a bullet of mass 17 grams out of a barrel 24 cm long. The bullet is accelerated down the length of the barrel with an average force of 16 Newtons.
Using the Impulse-Momentum Theorem, determine the velocity with which the bullet exits the barrel.
What average force is exerted by the individual holding the gun?
The individual firing the gun has mass 63 kg and is standing on a nearly frictionless skateboard, initially at rest. With what velocity will the individual be moving immediately after firing the gun?
An 80-kg stuntman jumps from a window of a building situated 30 m about a catching net. Assuming that air resistance exerts a 100-N force on the stuntman as he falls, decide his velocity just before he hits the net.
a light ray is travelling in air is incident on one face of a right angle prism with index of refraction n1.5 and the
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.0cm, the other 1.2cm. You plan to use the more powerful lens as the objective, and you want the eyepiece to be 18cm from the objective. What is ..
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
Two point charges are fixed on the y axis: a negative point charge q1 = -28 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.31 m. A third point charge q = +8.7 µC is fixed at the origin. The net electrostatic force exerted on the char..
Consider two vectors F1 and F2 with magnitude F1=64N and F2=71N and where 1 = 251 degrees and 2 = 107 degrees. The angles are gauged from the positive x axis with the counter-clockwise angular direction as positive.
A spherical planet is discovered by astronomers orbiting a star which has the same mass as our Sun. The orbital period of the planet is 2.55 Earth years, How far from the star (in AU) does the planet orbit
Compute the magnitude of an electric field, E, for a single point charge of 5 Coulombs that experiences a force of 10Newtons. Compute the electric field strength, E, when there is a distance of 5 cm and a voltage of 6 Volts.
If the Earth were to suddenly stop revolving around the Sun the gravitational force that the Sun exerts on the Earth would cause the Earth to "fall" directly into the Sun
A rectangular loop is 1.2 m wide and 0.80 m tall and carries 0.50 A of current clockwise. Find the net force and torque on the rectangular loop
When 2.1 mol of oxygen (O2)gas is heated at constant pressure starting at 0°C, how muchenergy must be added to the gas as heat to quadruple its volume? (The molecules rotate but donot oscillate.)
You are moving into an apartment and take the elevator to the6th floor. Suppose your weight is 770 N and that of yourbelongings is 1030 N. (a) Determine the work doneby the elevator in lifting you and your belongings up to the 6thfloor (15.2 m) at..
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