Help pls
A 5000 kg truck has 400000 J of kinetic energy. How fast is it
moving? *...
Physics, 21.11.2020 01:30 aallyssabrown0120
Help pls
A 5000 kg truck has 400000 J of kinetic energy. How fast is it
moving? *
Answers: 2
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Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.
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30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
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Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
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Physics, 22.06.2019 11:30
A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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