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Q1. A projectile is fired horizontally from a gun that is 33.0 m above flat ground; emerging from the gun with a speed of 130 m/s. (a) how long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its velocity as it strikes the ground?
Q2. Suppose you wish to fabricate a uniform wire out of 2.6 g of copper. If the wire is to have a resistance of R = 0.25 and if all of the copper is to be used, what must be the length of the wire in m and the diameter of the wire in mm.
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 x 10^-6 C, Find q1 and q2
"A plane, diving with constant speed at an angle of 54.0 degrees with the vertical, releases a projectile at an altitude of 770m. what is the speed of a aircraft
A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.1 rev/s to a maximum of 2.8 rev/s. what is his moment of inertia at his maximum rotation rate
Meanwhile, Isaac is piloting his ship in the westward direction, also at 0.89, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship.
Two cars are travelling on a desert road. After 5s, they are side by side at the next telephone pole. The distance between the poles is 70m.
a hydraulic jack has an in[put piston area of 2 cm^2 and an output piston area of 18 cm^2. What will be the pressure on the oil
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
Three resistors having resistances of R1=1.54ohms, R2=2.37ohms, and R3=4.78ohms respectively, Which resistor dissipates the most power and why
An interferometer is used to measure the length of a bacterium. The wavelength of the light used is 650 nm. How long is the bacterium
Calculate the fuel utilization and infinite multiplication factor for a fast reactor consisting of a mixture of liquid sodium and plutonium
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
When in deep space, the block accelerates at 4.2 m/s^2 even as a 120 N force is applied to it. The coefficient of static friction for a particular plane and this block is 0.31. What angle can this plane make with horizontal before the object starts t..
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