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A block with mass m = 1.8-kg attached to the end of a spring undergoes simple harmonic motion on a horizontal frictionless surface. The oscillation period is T = 5.0-s and the oscillation amplitude is A = 12.7-cm. When the spring is unstretched the block sits at a distance L = 1.7-m from a wall. Suppose we snap the spring at the very moment the block passes through the equilibrium point towards the wall. Calculate the time it takes for the block to hit the wall.
When unpolarized light is incident on a polarizer-analyzer pair, 37% of the original light intensity passes the analyzer. What is the angle between the transmission axes of the polarizer and analyzer
A nearsighted patient's far point is 0.645 m from her eyes. She is able to see distant objects in focus when wearing glasses by a refractive power of -1.6 diopters. What is the distance among her eyes and the glasses?
A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory, What was the ball's launch angle
julie throws a ball to her friend sarah. the ball leaves julies hand a distance 1.5 meters above the ground with an
All through an experiment, a block of wood with a mass of 250 g is placed on an inclined plane. While the plane is raised to an angle of 43o, the block slides down the plane at a constant speed.
A man weighing 720 N lies on a bed of nails. Calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm applied with a force of 5.20 N
According to the definition of work, the work done by an external force in moving a heavy crate along a horizontal surface should be the same whether the force is pulling upward at a 45 degree angle or pushing downward at a 45 degree angle. In practi..
A box with a mass of 3.5kg slides of a ramp 8 m high, then whentraveling on a horizontal surface it collides with a box with mass5kg, find the velocity of the box before the collision
Waves from a radio station have a wavelength of 300m. They travel by two paths to a home receiver 20.0km from thetransmitter. What is the minimum distance from the mountain to the receiver
A 1.5V battery has an internal resistance of .5 Ohm. If a light bulb with cold resistance of 10 Ohm is placed in a series with the battery, how much current initially flows in the circuit
A heating element in a stove is designed to dissipate 2,290 W when connected to 240 V. Compute the power it dissipates at that voltage. Assuming the resistance is constant; compute the current in the heating element if it is connected to 120 V.
A college campus features a large fountain surrounded by a circularpool. If the difference in linear speed between the students is0.23 m/s, what is the radius of the fountain
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