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Q. A driver traveling at 44.0 km/h in a school zone can brake to an emergency stop in 2.80 m. What would be the braking distance if the car were traveling at 52.0 km/h?
Q. Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 35 m apart. The train on the left accelerates rightward at 0.91 m/s2. The train on the right accelerates leftward at 0.82 m/s2.How far does the train on the left travel before the front ends of the trains pass?
How does the solar nebula theory describe the dramatic density difference between the terrestrial and Jovian planets.
How much horizontal force should a sprinter of mass 57.0 exert on the starting blocks to produce this acceleration.
Find the final displacement from the starting point. How much greater was the distance she walked than her displacement.
If the barge can only be pushed 18 cm deeper into the water before water overflows to sink it, how many 400 kg horses can it carry.
Assume you are the fish. You get up every morning and weigh yourself (in water), and find you weigh 0.42 N. You, being a boxfish, are a box measuring 4.164 cm per side. You see a poor, hungry fisherman, and decide to be his dinner. You hook yourself,..
What is the childs total mechanical energy. If the speed of the child at the lowest position is 2.00 m/s, what is the change in mechanical energy due to friction.
A freight car with a mass of 2500 kg rolls down an inclined track through a vertical distance of 1.5m. at bottom of the incline, on a level track, the car collides and couples with the identical freight car that was at rest. What percentage of th..
What is mass of the block of ice
A polar bear of mass 436 kg stands on an ice floe 58.10 cm thick. What is the minimum area of floe that will just support the bear in saltwater of density of 1030 kg/m3? The specific gravity of ice is 0.88.
suppose that the cross section of the hose opening is circular with a radius of 1.5 centimeters.
What is current temperature and peak wavelength What is the proper description of their situation
Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 544 N, is applied at an angle β = 8° to the forward dashed line. (a) What is..
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