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Determine the net force of gravity acting on the Moon during an eclipse when it is directly between Earth and the Sun. Assume that the Moon is located at the origin of a coordinate axis and that the Earth is in the positive direction.
You throw a 12-N stone vertically into the air from ground level. You observe that when it is 15.0 m above the ground, Find the stone's speed just as it left the ground
A 2.2 m long uniform plank is supported by two bathroom scales, one at either end. Initially the scales each read 100.0 N. How far is his center of gravity from the soles of his feet
a car of mass 1500 kg is travelling at 30kmhr along a level icy road when the motorist enters a curve unbanked of
When a diverging lens is held 13cm above a line of print, asin Fig 26.29, the image is 5cm beneath the lens. What is the focal length of the lens
Two 1.0 g beads, each charged to +5.0 nC, are 2.0 cm apart. A 2.0 g bead charged to -10 nC is exactly halfway between them. What are the speeds of the positive beads
A plane flies from base camp to Lake A, 300 km away in the direction 36.9° south of east. After dropping off supplies it flies to Lake B, which is 260km at 30.0° west of north from Lake A. find out the distance and direction from Lake B to the bas..
a block of mass m is placed against the inner wall of a hollow cylinder of radius r that rotates about a vertical
A long solenoid has 150 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.056 c (c = speed of light). Find the current i in the solen..
What is the horizontal distance the airplane engine falls. find out the time that was recorded on Earth.
A water tower is a familiar sight in many towns. The purpose of such a tower is to provide storage capacity and to provide enough pressure in the pipes that deliver the water to customers. The drawing shows a spherical reservoir that contains6.61 x 1..
An egg rolls off a kitchen counter and breaks as it hits the floor. How large is the impulse that the floor exers on the egg, and how large is the force exerted on the egg by the floor when stopping it? The counter is 1.0mhigh, the mass of the egg is..
Estimate the size of sensitive cells of the human eye, provided that the entrance pupil of the eye about 1 mm in diameter under usual sunlight conditions. Assuming the size of sensitive cells is such that diffraction limit is met.
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