10 POINTS AND BRAINLEST
In order for the bug to fly through the air, a force has to push the bug forward. Identify this force.
The driver hates killing bugs. When she saw one coming toward the windshield, she braked suddenly and hoped the bug would get out of the way. (Sadly, it did not.) When she hit the brakes, she felt that she was thrown forward. Use one of Newton’s Laws to explain why she felt that she was thrown forward..
A) The unfortunate bug hits the windshield with a force of 1 N. If you call this the action force, what is the reaction force?
B) Does the car hit the bug any harder than the bug hits the car? Use one of Newton’s laws to explain why or why not.
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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.
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10 POINTS AND BRAINLEST
In order for the bug to fly through the air, a force has to push the bug fo...
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