Physics, 20.05.2021 20:50 ambriaramirez8

Can a train moving west accelerate to the east? A. No, Acceleration is always in the direction of force
B. Yes, if it's speeding up
C. No, Acceleration is always in the direction of the velocity
D. Yes, if it's slowing down
Please explain why.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 01:30

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

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

Physics, 22.06.2019 10:50

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

Answers: 1

Answer

Physics, 22.06.2019 13:20

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Answers: 1

Answer

You know the right answer?

Can a train moving west accelerate to the east? A. No, Acceleration is always in the direction of f...

Questions