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A trap door, of length and width 2.35 m, is held open at an angle of 65.0° with respect to the floor. A rope is attached to the raised edge of the door and fastened to the wall behind the door in such a position that the rope pulls perpendicularly to the trap door. If the mass of the trap door is 18.2 kg, what is the torque exerted on the trap door by the rope?
In an experiment using an inclined track with a dynamics cart, the computer failed, find the cart's acceleration, mass, and the tension in the string connecting the cart to the accelerating 50g mass
An airplane pulls a 24 kg banner on a cable as depicted in the figure below. When the plane has a constant cruising velocity the cable makes an angle of ? = 26°
A point source of light is 40.0 cm below the surface of a swimming pool (for water, n=1.333). Find the diameter of the largest circle
Yellow light that has a wavelength of 6.32 x10^2 nm passes through two narrow slits that are 0.201 mm apart. An interference pattern is produced on a screen 183 cm away. What is the location of the first-order image.
what is the distance of closest approach of the two particles. explain two ways in which you could you this equipment to raise the crate.
A satellite orbits a planet of unknown mass in a circle of radius 2.3 x 107 m. The magnitude of the gravitational force on the satellite from the planet is F = 89 N. What is the kinetic energy of the satellite in this orbit
The gravitational potential energy of all the water stored behind a very large dam is 1.2Ã-10^16 J, How far apart should you place the charges
Use the principle of superposition and the boundary conditions for a stretched string with a fixed or free end to explain the form of reflected pulses. Explain and use the mathematical expression for a standing wave
A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. what is the height of the hill
Two .40 kg soccer balls collide elastically in a head on collision. The first l starts at rest and the second ball has a speed of 3.50 m/s after the collision, second ball is at rest. What is the final speed of the first ball.
A uniform electrical field is established by connecting the plates of a parallel-plate capacitor to a 11V battery. The plates of the capacitor are separated a distance 3.50 cm. What is the capacitance of this parallel plate capacitor
Find out the direction of the train motion
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