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A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal and reaches the flat snow near the lift. How far will she travel along the flat snow if the coefficient of kinetic friction between her board and the snow is 0.05201?
An engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III.
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.25 s. At the end of this time, Find the total displacement of the boat
A storage tank 23 m high is filled with pure water. (Assume the tank is open and exposed to the atmosphere at the top.), Find the gauge pressure at the bottom of the tank
a 30 kg child stands on the edge of a stationary merry-go-round of radius 2.0 m. What is the angular speed of the merry-go-round just after the ball is caught
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Illustrate at what height above the surface of the earth does the balloon have a speed of 7.20 m/s?
On your first trip to Planet X you happen to take along a 215 mass, a long spring, a meter stick, and a stopwatch. You're curious about the free-fall acceleration on Planet X, What is the value of gravity
find the initial velocity of the ball. An echo is heard in 3 sec after the emission of sound. If speed of sound in air is 342 m/s, what is the distance of the reflecting surface from the source.
A screen 1-m wide is 2.0 m from a pair of slits illuminated by 633-nm laser light, with the screen's center on the center line of the slits. How many fringes will be visible on the screen
A test tube standing vertically in a test tube rack contains 2.2 cm of oil, What is the gauge pressure on the bottom of the tube
Heather and Jerry are standing on a bridge 51 above a river. Heather throws a rock straight down with a speed of 12. Jerry, at accurately the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.
Point A is located 0.259 m away from a charge of -2.11 x 10-9 C. Point B is located 0.487 m away from the charge. What is the electric potential difference VB - VA between these two points.
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