Physics, 06.05.2020 02:38 strawberrymrmr3432

Mike and Mitchell decide to have a foot race. They mark off a stretch of 100 yards, and recruit Cindy to work the stopwatch.
After running the race and looking at the results, Cindy declared that Mitchell was the fastest.
So how did the boys times compare?
A)
Mike's time must have been lower.
B)
Mitchell's time must have been lower,
C)
Mitchell's time must have been higher.
D)
The boys had times that matched exactly

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 01:10

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

Answers: 1

Answer

Physics, 22.06.2019 03:00

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Answers: 3

Answer

Physics, 22.06.2019 10:00

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Answers: 1

Answer

Physics, 22.06.2019 10:40

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Answers: 1

Answer

You know the right answer?

Mike and Mitchell decide to have a foot race. They mark off a stretch of 100 yards, and recruit Cind...

Questions