Physics, 02.08.2019 00:50 strawberrymochi1078
Aball falling through the air has (the ground is the zero reference point) question 19 options: both potential and kinetic energy only kinetic energy only potential energy neither potential energy nor kinetic energy only thermal energy question 20 (1 point) when a fast moving car brakes to a stop, the brakes heat up because of friction. this is an example of question 20 options: one form of energy being converted to another form energy being created energy being destroyed periodic motion elastic motion
Answers: 2
Physics, 22.06.2019 15:50
An object with initial temperature 130 β f is submerged in large tank of water whose temperature is 50 β f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = β 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 22.06.2019 17:50
If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around
Answers: 2
Aball falling through the air has (the ground is the zero reference point) question 19 options: bo...
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