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A 20kg box is on a level surface pressed against a spring compressed 25cm and with k=1000 k/m. 25cm in front of the umcompressed position of the spring is a hill inclined at 30 degrees above level. For the level surface, friction is 0.100, the hill is frictionless. How far does the box go up the hill?
We wish to coat a piece of glass (n=1.5) with a thin film (n=1.42) so that a maximum amount of light will be transmitted, what is the minimum thickness of the film in millimeters
Laser light at 635 falls on a double-slit apparatus with slit separation 6.9 .Find out the separation between the third and fourth bright fringes, as seen on a screen 1.4 from the slits.
Clarify the general purposes of the management report. Identify five subject areas or topics which have been recommended for inclusion in the management report.
What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?
Consider a particle with positive charge q = 8.00 * 10^18 C moves with velocity v=(4i + 2j - k) m/s through a region, calculate the total force on the moving particle
An individual is running around a turn with an 11 m radius at 3.75 m/s. What is the runner's centripetal acceleration
A train 450 m long is moving on a straight track with a speed of 82.1 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.7 km/h. Assuming constant acceleration, determine how long the..
A woman is riding a Jet Ski at a speed of 28.8 m/s and notices a seawall straight ahead, what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
A solid disk (mass = 5 kg, R=0.6 m) is rolling across a table with a translational speed of 9 m/s. What is the total kinetic energy of the disk
Rocket-powered sleds are used to test the human response to acceleration. what is the distance that the sled travels
If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 2.2 m on Earth, what would be his maximum range on the Moon, where free-fall acceleration is g/6 and g = 9.80m/s2.
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
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