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A meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8:00 PM, the storm was 60 northeast of her station. At 11:00 PM, the storm is at 80 north. What is the direction of the average velocity of the storm?
You would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. What is the height of the arrow above the ground once it has travelled the 43.0 m horizontally
the power company charges 10 cents per kilowatt-hour, explain how much will it cost to leave the bulb on for 30 days? Show your work.
small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
X rays diffract from a crystal in which the spacing between atomic planes is 0.179nm. What is the angle of the first-order diffraction
Suppose you decide to travel to a star 85 light-years away at a speed that tells you the distance is only 10 light-years
A light spring-gun projectile launcher is mounted on an 0.613 kg air track glider. What is the speed of the air-track glider after the gun is fired
A light spring having a force constant of 139N/m is used to pull a 9.60kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is 0.200. The sled has an acceleration of 2.40m/s^2 . A)Calculate the net upw..
A grocery cart is pushed along an aisle by a shopper who exerts a constant horizontal force of . The acceleration of gravity is . If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart’s final s..
A driver measures her "cold" tire gauge pressure to be 1.97 105 Pa. The measurement is made before driving, Find the final temperature of the air in the tires
A 52.1-kg high-school student hangs from an overhead bar with both hands, What is the tension in each arm when the arms make an angle of 31.00 o with respect to the vertical
An 8m, 290 N uniform ladders rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can a 720 N person climb before the lad..
A ball is launched from the top edge of a building 32.8 m high at a speed of 23.7 m/s at an angle of 15.0 degrees above the horizontal. Find the horizontal distance from the building at which the ball lands
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