Physics, 13.09.2021 14:00 aaminohasan142
A monkey is on the top of 15 m tall tree. If the monkey's mass is 10 kg, how much gravitational potential energy does it has at the top of the tree. (Use the bottom of the tree as zero height and g=10 m/s2.
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The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of
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Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?
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At what time will the interfering waves have an amplitudeof zero?
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The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
A monkey is on the top of 15 m tall tree. If the monkey's mass is 10 kg, how much gravitational pote...
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