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A gun is fired with angle of elevation 30 degrees. The max height of the shell is 300 meters. What was the muzzle speed?
_______ m/s
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, and an orbital radius r = 5.79 x 1010 m. Assume the orbit of Mercury around the Sun is approximately circular.
Two positive point charges, each 12\mu C , lie along the x-axis at x = -0.10m and x = +0.10m. Find the electric field at the point (0, 0.25m ) on the y-axis
After falling from rest from a height of 30m, a 0.5 kg ball rebounds upward, reaching a height of 20 m. what average force was exerted on the ball
By holding a magnifying glass 32 from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8 from the lamp. What is the focal length of your magnifying glass
Apartment dweller will testify that bass notes are more distincty heard from music played in nearby apartments. Why do you supposelower frequency sound get through walls floors and ceiling moreeasily?
A steel rod has a length of exactly 0.2cm at 30degree centigrade. what will be its length at 60degree centigarde?
Some sliding rocks approach the base of a hill with a speed of 18.0m/s . The hill rises at 40.0? above the horizontal and has coefficients of kinetic and static friction of 0.390 and 0.650, Find the acceleration of the rocks
basic math in real world applications1. describe a real-world problem you have encountered in either your personal or
A railroad car of mass 2.46 multiply.gif 104 kg, is moving with a speed of 4.13 m/s. What is the speed of the four cars after the collision
Two pieces of the same wire have the same length. From one piece, asquare coil containing a single loop is made. From the other, acircular coil containing a single loop is made. The coils carry different currents.
A physics major is working to pay his college tuition byperforming in a traveling carnival. what is the magnitude of the normal force exerted on the motorcylce by thesphere at this point
A parallel plate capacitor has a potential difference between the plates of 80 V. If the charge on one of the plates of the capacitor is +8.0 ?C, what is the electrical energy stored by this capacitor
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