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A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 13.9 m/s at an angle of 44.2° above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, discover the speed of the ball just before it lands.
A 5.0-kg block of aluminum is heated from 20degrees celsius to 90 degrees celsius at atm. pressure. estimate the work done by the aluminum
A 40.0 kg ballet dancer stands on her toes during aperformance with four square inches (26.0 cm^2) in contact with thefloor. What is the pressure exerted bt the floor over the area ofcontact in the following cases?
A flat circular coil with 102 turns, a radius of 3.92 10-2 m, Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current
Assume a satellite is in a circular orbit 3.0 Earth radii above the surface of the Earth (4 Earth radii from the center of the Earth). Compute by how much does it have to increase its speed
A 6-µF capacitor in series with a 2-? resistor is charged with a 9-V battery for a long time by closing the switch, Determine the maximum current through the inductor
When a proton (+1.6 x 10^-19 C) moves .10 m along the direction of an electric field of strength 3.0 N/C, what is the magnitude of the electrical potential difference between the protons initial and ending points
A planoconcave lens (n = 1.52) has a focal length of -24.6cm. What is the radius of the concave surface
a parallel plate capacitor has a capacitance of 6.7 microf when filled with a dielectric. the area of each plate is 1.4
q1. an ambulance travelling at 39 ms approaches a car heading in the same direction at a speed of 19 ms. the ambulance
A solid block is suspended from a spring scale.When the block is in air the scale reads 35.9 N, when immersed inseawater the scale reads 30.3 N, What is the density of the block
If the hydrogen atoms undergoes a transition between these states, it emits a photon with a characteristic wavelength of 21 cm. What is the energy difference between the 2 states
Two ropes are pulling upward on a large crate. The weight of the crate is 350. N. The tension in the left rope is the same as the tension in the right rope. what is the tension in the left rope
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