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A cannon fires a projectile with a muzzle velocity of 400m/s at anangle of 20 degrees above the horizontal. Assume the height of thecannon is zero and the surface of the earth is flat.
(a) How long does it take for the projectile to hit theground?
(b) What is the range of the cannon?
A child is trying to throw a ball over a fence. She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal. How far is the child from the fence
a piano turner hears one beat every 1.1 second when trying to adjust two strings, How far off in frequency is the other string
A major-league pitcher can throw a baseball in excess of 48.7m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 15 m away from the point of free.
show that in any prism the area of a right section is equal to the product of the base and the sine of the angle
how much work is done by an applied force that moves two charges of 8.4 microc that are initially very far apart to a
The first mass M (9.50 kg) is sitting on an inclined plane whose angle above the horizontal is 35 degrees. What is the minimum mass, m, in kg, needed to keep the block from sliding down the incline
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops.
two point charges are placed along a horizontal axis with the following values and positions 3.0 microc at x 0 cm and
Assuming you can't use the electric heater, you put 0.2kg of water at 20(C) in a thermous. If you move the water up and down a height 10cm twice/second, how long must you shake the water to raise the temperature to 100(C)?
A hunter aims directly at a target (on the same level) 150 m away. If the bullet leaves the gun at a speed of 220 m/s, by how much will it miss the target
A 6.00 g bullet, traveling horizontally with a velocity of magnitude 450m/s, is fired into a wooden block with mass of 0.780kg, initially at rest on a level surface. What is the decrease in kinetic energy of the bullet
A box of mass m = 5 kg sits at the top of a ramp of mass M = 20 kg and height h = 2.0 m with incline angle ? = 30°. What are the final velocities (magnitude and direction) of the ramp and the box
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