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A 200kg shell is fired from a gun with an initial velocity of200meter/second. the angle of elevation of the gun is450.
(a) what is the potential energy of the shell at the highest point in its trajectory(path)?
(b) what is thekinetic energy of the shell at the highest point in its trajectory?
Expand 1.046 mole of an ideal monatomic gas initially at 5.26 kPa and 605 K from initial volume Vi = 1.00 m3 to final volume Vf = 2.00 m3. What is the final pressure of the gas
The threshold intensity for a human eye to sense the presence of light is 50 photons falling on the retina within a period of 0.1 s. Estimate how far away the star can be away
A water tank open to the atmosphere at the top has two smallholes punched in its side, one above the other. How high does the water stand inthe tank
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 10.5 degc. the
The temperature of a black body is increased by 10.5 percents. By how many percents did the wavelength of the peak change
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 52.0 cm . The explorer finds that the pendulum completes 108 full swing cycles in a time of 145s .What is the magnitude of the gravitational acceleration o..
question a current of 5 amp exists in a 10ohm resistance for 4 minutes. how many coulombs and how many electrons pass
A merry-go-round rotates at 5 rpm and is shaped like a disc with a radius of 3 m and a mass of 100kg. what will be the new rotational speed
a series combination of a 14 k resistor and an unknown capacitor is connected to a 11 v battery. one second after the
An object is moving in a circular path of radius 4.00 m. If the object moves through an angle of 30.0 degrees, then what is the tangential distance traveled by the object
A 3.0 kg particle with velocity v=(5.0m/s)i-(6.0m/s)j is at x=3.0mand y=8.0m. It is pulled by a 7N force in the negative x direction.About the origin, what are (a) the particle's angular momentum?
A 7.05-kg ball of clay is thrown downward from a height of 4.08m/s onto a spring with k=1600 N/m. Find the total work done on the clay during the spring's compression
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