Physics, 23.10.2019 17:50 chloejaylevesque
Acart of mass m can move without friction on an air track. initially, it is at rest. then, for a limited time delta t, it is pushed down the track with a constant force f. which of the following statements are true? when you stop pushing, the cart starts slowing down again the higher the mass of the cart, the harder you have to push to achieve the same final speed in the same amount of time. you exert a larger force on the cart than the cart exerts on you. leaving all other quantities unchanged, what happens in the scenarios below? bullet if you use a cart with half the mass, you cover distance during pushing. bullet if you use half the force, you reach final speed. bullet if you push half as long, you cover distance during pushing. bullet if you use a cart with half the mass, you reach final speed.
Answers: 1
Physics, 22.06.2019 01:40, sasalinas2001
In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.
Answers: 1
Physics, 22.06.2019 14:10, chuchi24
The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
Physics, 22.06.2019 17:00, marchellepenuliar
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
Answers: 3
Acart of mass m can move without friction on an air track. initially, it is at rest. then, for a lim...
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