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A load of 52.5 N attached to a spring hanging vertically stretches the spring 5.29 cm. The spring is now placed horizontally on a table and stretched 10.8 cm. What force is required to stretch the spring by this amount?
After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 7.20 kg of ice and the temperature of the ground was 40.5°C, calculate the energy that is required to melt all the ice at 0°C. Th..
A 8150 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 30 mph, 17 degrees East of North. What is the force of the wind acting on the boat
Find out the speed of the satellite
What is the wavelength of the waves emitted by source? What is the difference in frequency between directly radiated waves and the waves reflected from a whale travelling straight toward the ship at 4.99? Suppose that the ship is at rest in the water..
Calculate the smallest amount of kinetic energy the electron must have in order to leave its circular orbit and move to infinity far from the proton
A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.400 mm2. What is the current in the wire
A 0.39 kg iron horseshoe that is initially at 745°C is dropped into a bucket containing 24 kg of water at 46°C. What is the final equilibrium temperature? Neglect any heat transfer to or from the surroundings.
How far from the point of the drop will the rock hit the ground.
Three 45-? lightbulbs and three 70-? lightbulbs are connected in series. What is the total resistance of the circuit
what is the magnitude of the net force acting on ball.
An archer shoots an arrow with a velocity of 46.0 m/s at an angle of 45.5° with the horizontal. What is the initial speed of the apple
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 e 10^6 m/s. What is the distance of closest approach? Please show work in the answer because I am attempting to learn this.
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