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A ray of light passes from air during dense flint glass and then back into air. The angle of incidence on the first glass surface is 80.0°. The thickness of the glass is 8.00 mm; its front and back surfaces are parallel. How far is the ray displaced as a result of travelling during the glass?
a cubical box, 6.00 cm on each side, is immersed in a fluid. the gauge pressure at the top surface of the box is 652 PA, what is the density of the fluid
Suppose the first stage of a two-stage rocket has total mass 1.30×10^4 kg, of which 1.10×10^4 kg is fuel. The total mass of the second stage is 1000 kg, of which 700 kg is fuel. What is the final speed of the second stage
What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 162 km
The magnetic field inside an air filled solenoid 36cm long and 2cm in diameter is 0.8T. Approximately how much energy is stored in this field
A (smooth) rope of length L and mass m is placed above a hole in a table. One end of the rope falls through the hole, Find the mechanical energy lost from the rope as the end of the rope leaves the table
A 23.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 33.0° with the vertical, find the child's speed at the lowest position
a student skateboards down a ramp that is 6m long and inclined 18 degrees with respect to horizon. the intitial speed
You've been walking at a steady, and rope pulls up on the sled at a 21 angle. You estimate that the mass of the sled, with your friend on it, is 64 and that you're pulling with a force of 84.0.
NASA sends satellites to Mars by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit, Calculate the time it takes the satellite to travel from Earth to Mars
Which object posses more gravitational potential energy: a 2-kilogram ball at 2.2 meters above the ground or a bullet that is .15 kilograms at a height of 74 meters above ground
A 1.2 kilogram object moving with a speed of 8m/s collides perpendicularly with wall and emerges with a speed of 6m/s in the reverse direction. find the magnitude of the average force on object by wall
ms.smith is planning her classroom. she knows she has approximately 12 linear meters of available wall space. she likes
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