Select the correct answer.
A race car is moving with a velocity of 144 kilometers/hour. The driver applies the brakes, and the car comes to a halt in 12.0 seconds. What is
the average acceleration of the car during those 12.0 seconds?
ОА.
-12.0 meters/second?
ОВ.
-3.3 meters/second
3.3 meters/second
D.
10.3 meters/second?
Answers: 3
Physics, 22.06.2019 11:20
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
Answers: 3
Physics, 22.06.2019 15:50
The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?
Answers: 2
Physics, 23.06.2019 07:00
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Answers: 1
Physics, 23.06.2019 13:30
You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.
Answers: 1
Select the correct answer.
A race car is moving with a velocity of 144 kilometers/hour. The driver...
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