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A projectile is shot from the ground at an angle of 55o with respect to the horizontal, and it lands on the ground 5 seconds later.
(a) Obtain the horizontal component and the vertical component of initial velocity?
(b) Obtain the magnitude and direction of velocity when the projectile hits the ground.
A slide projector has a converging lens whose focal length is 119.00 mm. How far from the lens must the screen be located if a slide is placed 122 mm from the lens
A stone is thrown horizontally at a speed of 4.9 m/s from the top of a cliff 89.5 m high, how long does it take the stone to reach the bottom of the cliff.
when a parachute opens the air exerts a large drag force on it. this upward force is initially greater than the weight
Jamie pulls a box of 1 kilogram mass up an inclined plane by a constant force of 10 Newton that causes a displacement of 0.50 meter. Calculate the work done by the normal force on the object
A capacitor is connected to an ac generator that has a frequency of3.7 kHz and produces a voltage of1.9 V. The current in the capacitor is 32 mA. What voltage does the second generator produce
Two equally charged spheres are located 2 cm away from each other. what is the magnitude of the charge on each of sphere
a horizontal spring mass system oscillates on a frictionless table. find the maximum extension of the spring
A spaceship encounters a single plane of charged particles, with the charge per unit area equal to sigma. Evaluate what is the magnitude and direction
Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each elevator has mass 440kg when empty and maximum acceleration 2.27m/s^2 . The elevator cables can withstand a maximum tension of 20.7kN before break..
On a banked race track, the smallest circular path on which cars can move has a radius of 119 m, while the largest has a radiusof 173 m, as the drawing illustrates. The height of the outer wallis 10.8 m. Find (a) the smallest and(b) the largest speed..
A skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. Find the work done by the net external force acting on the skier
Calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density thickness. Show your work.
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