Physics, 24.03.2021 22:20, KindaSmartPersonn

Starting at home, a man runs 400 m to a store and then returns home. If he runs at 8.00 m/s, the time for the round trip would be: *
A. 100 s
B. 20 s
C. 320 s
D. 50 S

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 18:10, garcser257278

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Answers: 1

continue

Physics, 22.06.2019 03:00, bwheele6791

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

continue

Physics, 22.06.2019 07:00, gracie18383

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

Answers: 3

continue

Physics, 22.06.2019 11:20, cjd1214812148

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

continue

Do you know the correct answer?

Starting at home, a man runs 400 m to a store and then returns home. If he runs at 8.00 m/s, the ti...