Physics, 18.09.2019 19:00 katwright1124
When a cars velocity is positive and it’s acceleration is negative ,what is happening to the cars motion?
a) the car remains at rest
b) the car speeds up
c) the car travels at constant speed
d) the car slows down
Answers: 2
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On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?
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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
When a cars velocity is positive and it’s acceleration is negative ,what is happening to the cars mo...
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