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A boy on a hill shoots an arrow at 20m/s directed at 36.9 degreesabove the horizontal. The arrow hits a target 3.00 seconds afterrelease. Find:
A). The horizontal distance from the release point to the target
B). The height of the target above or below the release point.
C). The vertical component of the arrow's velocity just beforecontact.
D). The total velocity (magnitude and direction) of the arrow justbefore hitting the target.
a find the change in classiclal momentumof an electron that accelerates from 0.900c to 0.940c neglecting relativistic
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
A rocket is fired straight up and accelerates upward at 12 m/s2 for 18 seconds. The rocket then runs out of fuel and coasts still going up. Ignore any air resistance effects on the rocket and use -9.8 m/s2 for the local acceleration due to gravity..
The crankshaft in a race car goes from rest to 3000 rpm in 2.0seconds. What is the crankshafts angular acceleration?
An object 3.4 mm tall is placed 25cm from the vertex of of a convex spherical mirror. how far is the image from the vertex of the mirror
A positive point charge Q is on the y axis at y = D; a negative point charge -2Q is at the point x = D, y = D. Find the potential for points on the x axis
if you throw a ball upward with an initial speed of 4m/s at 1.5 above the ground, find the final velocity just before touching the ground
Using Newton's laws, Evaluate the magnitude of the normal force that the floor exerts on the chair.
Consider a capacitor consisting of two identical metal plates parallel to each other. Each plate has an area of 140 cm2 and they are separated by 2.7 mm. Find the capacitance of the capacitor
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
An object is placed 100 cm in front of a diverging lens of focal length -25 cm. A converging lens of focal length 33 1/3 cm is placed 30 cm past the first lens. What is the lateral magnification of this system of lenses? Show work for full credit.
Assume the ball leaves the table moving horizontally with this speed. If the table is 1 meter above the floor, what is the horizontal distance the ball travels before it hits the floor
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