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A 63-kg skier is going down a slope oriented 31° above the horizontal. The area of each ski in contact with the snow is 0.13 m^2. Determine the pressure that each ski exerts on the snow.
Two very narrow slits are illuminated by monochromatic coherent light in air that has wavelength 560 nm, What is the distance between the two slits
An air-hockey puck floats across the table and bumps into a second puck, initially at rest. The first puck (mass 0.0250 kg) is moving initially due East at 5.50 m/s. Find the speeds of both picks after the bump
A recent tomb has been unearthed in Egypt that shows the set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year (these stars served as sentinels for the pharaoh's passage through the un..
Neutron stars consist only of neutrons and have unbelievably high densities. Calculate the density of such a star
Waves on a 10 meter rope travel at 20 m/s. You shake the rope back and forth until you get a standing wave with a single antinode. find the wavelength and frequency of each standing wave
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.7 m/s. The car is a distance d away. The bear is 30 m behind the tourist and running at 6.0 m/s. The tourist reaches the car safely. What is the m..
Unpolarized light with an intensity of 980 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized and has the charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion.
Geothermal heat is having another "revival". Explain how it works in a home and how much it would cost to add this to your home (determine your square footage or use an average 2000 square foot home), How many panels (size?) would you need
determine the maximum height attained by the 2.1-kg mass
A star with the same mass and diameter as the sun rotates about a central axis with aperiod of about 28.4 days. What would be the new rotation period (s) of the star
You are on a swing with a chain 5.19 m long. If your maximum displacement from the vertical is 18.1°, how fast will you be moving at the bottom of the arc
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