A train is moving at constant speed over a certain period of time. Which of the following statements about the train's motion during this period of time must be false?
A. The magnitude of the train's velocity is constant.
B. The distance traveled by the train will be a positive, nonzero number.
C. The train's direction of motion may change.
D. The instantaneous speed may be higher or lower than the average speed.
Answers: 2
Another question on Physics
Physics, 22.06.2019 07:30
The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface
Answers: 1
Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
Physics, 22.06.2019 17:30
Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity
Answers: 3
Physics, 22.06.2019 20:30
Which statement best describes the direction of the buoyant force on any object? a. opposite the force of gravity b. in the same direction as the weight c. in the direction of motion of the object d. opposite the direction of motion of the object
Answers: 1
You know the right answer?
A train is moving at constant speed over a certain period of time. Which of the following statements...
Questions
Social Studies, 14.12.2020 16:40
History, 14.12.2020 16:40
Geography, 14.12.2020 16:40
Mathematics, 14.12.2020 16:40
Mathematics, 14.12.2020 16:40
Engineering, 14.12.2020 16:40
