Physics, 25.05.2021 07:10 NightSun8891
Type the correct answer in the box. Spell all words correctly. Complete the sentence using the correct term. A enforces federal and state laws related to environmental and natural resources. Reset Next reserved.β
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Physics, 21.06.2019 15:00
If this plastic cup is heated to its melting point, what will eventually happen to all the particles in the plastic? a. the particles will begin to move enough that they slide past each other. b. bonds will form and the liquid will become a solid. c. the spaces between the particles will get smaller. d. the particles will change state and become a crystalline solid.
Answers: 2
Physics, 22.06.2019 12:00
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0Β° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
Physics, 22.06.2019 19:50
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 Γ 10-6 ΟΒ·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 Β’ 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 itβs resistivity when at operating temperature? explain.
Answers: 3
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