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A shell is fired at an angle of 20 degree above the horizontal at a velocity of 200 m/s a) what is the range? b) What is its velocity at highest point of the trajectory?
If the alternating current in a circuit is described by the equation I=20sin60t, what are the peak current and frequency
At a recent rock concert, a dB meter registered 114 dB when placed 1.30 m in front of a loudspeaker on the stage, What was the power output of the speaker
A scaffold of mass 80.0kg and length 5.10 m is supported in a horizontal position by a vertical cable at each end.
A block of mass m is initially at rest at the top of an inclined plane with a height = 6 m which makes and angle of ? = 25 degrees with respect to the horizontal. What is the speed of the block as it leaves the ramp
A sample of 30 computer hardware companies were observed from Stock Investor Pro and is located in the INVESTOR tab in Excel file provided. The data includes price per share, book value per share, and the return on equity per share for each.
The plates of a parallel-plate capacitor are 3.50mmapart, and each carries a charge of magnitude 75.0nC, What is the area of each plate
An inductor that has an inductance of 15.0 H and resistance of 30.0 W is connected across a 100-V battery. Calculate the rate of increase of the current
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas?
two plates of radius R are separated by a distance 2h.the top plate rotates with velocity w. find the velocity as a function of radius r and and height z
A 20.0g ball of clay traveling east at 8.00m/scollides and sticks together with a 20.0g ball of clay traveling north at 8.00m/s. What is the speed of the resulting ball of clay
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 760 N person climb before the ladder begins to slip?
A 1450 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1270 N object hangs from its end. Find the tension in the cable holding up the boom
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