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Questions in physics

[Homework Help] You did 150 joules of work lifting a 120-newton backpack. a. How high did you lift the backpack? b. How much did the backpack weigh in pounds?

[Homework Help] What planet starts with the letter E?

[Homework Help] You are standing 1 meter from a squawking parrot. If you move to a distance of 3 meters away, the sound intensity will be what fraction of its original value?

[Homework Help] A wet towel is hanging on a clothesline in the sun. By what process does the towel dry?

[Homework Help] A basketball has been left out in the cold. The next day you find that it has become soft. What do you do to get it back to shape and why? A. Leave it alone to warm up B. Pump it up a little C. Get a new basketball

[Homework Help] Why didn't the first stars to form have solar systems with Earth-like planets and satellites?

[Homework Help] What is the velocity of an object that has a mass of 2.5 kilograms and a momentum of 1,000 kg·m/s?

[Homework Help] Evaporation: Evaporation is the process where a _________ changes into a _________.

[Homework Help] Evaporation: Large amounts of water evaporate from the Earth's ________, _______, __________ every day. The water vapor (evaporation) becomes part of the ________.

[Homework Help] Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to when they are in parallel?