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A block is on a plane inclined at 75 degrees with a coefficient of static friction of 0.1. The block is kept stationary on the ramp by someone pushing down on it in a direction perpendicular to the ramp's surface. If the block is 100g, what is the minimum necessary magnitude of the force to keep it stationary?
A planoconcave lens (n = 1.52) has a focal length of -24.6cm. What is the radius of the concave surface
A crate travels 30 m due to a constant force of 350 N. The friction can be neglected for the first 15 m. What is the final speed of the crate if it weighs 110 kg
q1. presume the gravitational field vector of a spherically symmetric mass distribution is a constant i.e. independent
A 3.00kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 8.00kg cylindrical pulley, Find the angular acceleration of the pulley
A softball having a mass of 0.45 kg is pitched horizontally at spring with spring constant 78 N/m. how fast was the softball moving initially
A ball is thrown from the roof of a 22m tall building with an initial velocity of magnitude 12 m/s and directed 53.1 (o) above the horizontal. What is the magnitude of the ball's velocity just before it hit the ground
A 30 N block is pulled along a horizontal surface by a 10 N force parallel to the surface. evaluate the coeffient of kinetic friction
Two 2.30 cm x 2.30 cm plates that form a parallel-plate capacitor are charged to +- 0.714nC. Part A What is the potential difference across the capacitor if the spacing between the plates is 1.00mm? Part B What is the potential difference across t..
Two particles, with charges of q1 = 60.0nC and q2 = ?60.0nC, are placed at the points with coordinates, Find the electric potential energy of the configuration of the three fixed charges
A rope with 300 g of mass per meter is under 580 N tension. A wave with frequency 3.1 Hz and amplitude 6.5 cm is propagating on the rope
you apply a potential difference of 4.5 volts between the ends of a wire that is 2.5 m in length and .654mm in radius. What length of nichrome wire will you use
A 500 Hz whistle is moved toward a listener at a speed of 10 m/s. At the same time, What is the apparent frequency heard by the listener
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