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Question1
One end of a horizontal string of linear density 6.9×10-4 is attached to a small-amplitude mechanical 150- oscillator. String passes over a pulley, a distance away, and weights are hung from this end. What mass should be hung from this end of string to produce one loop of a standing wave? Imagine string at the oscillator is a node, which is almost true.
Question2
A fishing pole is 2.00 m long inclined to the horizontal at an angle of 20.0 degree what is torque exerted by the fish about an axis perpendicular to the page and passing through the hand of the person holding pole?
A block of mass m = 353 g is dragged with a string across a rough horizontal table. What is the power supplied by the force of friction
define the speed with which the cart reaches positions 3, 2, and 1 (in that order). Neglect friction. Let g = 9.81 m/s2.
You are driving north on 107th Avenue at a speed of 31.2 mph. At what frequency do you hear the siren
A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. what pressure does each leg exert on the floor
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530, what is the angle of refraction for each wavelength
A satellite moves in a circular orbit around the Earth at a speed of 5680 m/s. Determine the period of the satellite's orbit
A drop of water on a countertop reflects light from a flower held 3.10 cm directly above it. What is the focal length of the water drop
A wooden block with mass 1.15kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 28.0?, Calculate the amount of potential energy that was initially stored in the spring
A 6.50 g bullet moving at 726 m/s strikes a 590 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A bullet of mass 0.018kg traveling horizontally at a high speed of 290m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface.
An object is lifted vertically 2m and held there. If the object weighs 30N, how much work was done in lifting it. Describe it briefly.
The radar system at an airport broadcasts 11 microwaves with 150 of power. An approaching airplane with a 31 cross section is 24 away. suppose that the radar broadcasts uniformly in all directions and that the airplane scatters microwaves uniformly..
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