题目内容

A major league pitcher is recorded as having thrown a 105 mph fastball. What is the speed of the pitch in m/s? One mile is equivalent to 1609m.()

A. 15 m/s
B. 235 m/s
C. 47 m/s
D. 34 m/s
E. 60 m/s

查看答案

搜索结果不匹配？点我反馈

更多问题

Consider the ratio of the surface area of a cylinder to its volume. Assume the height is equal to its diameter. What happens to this ratio if the diameter of the cylinder decreases by a factor of 2? ()

A. Remains the same
B. Decreases by a factor of 2
C. Increases by a factor of 2
Decreases by a factor of 4
E. Increases by a factor of 4

查看答案

Consider the ratio of the surface area of a sphere to its volume. What happens to this ratio if the diameter of the sphere increases by a factor of 3? ()

A. Decreases by a factor of 9
B. Increases by a factor of 3
C. Decreases by a factor of 3
D. Increases by a factor of 9
E. Stays the same

查看答案

In everyday language, speed and velocity are synonyms, but in physics ()

A. velocity has only magnitude.
B. speed has only direction.
C. velocity has magnitude and direction.
D. speed has magnitude and direction.
E. velocity has only direction.

查看答案

In everyday language, power and force are similar, but in physics ()

A. force has only magnitude.
B. power has only direction.
C. force has magnitude and direction.
D. power has magnitude and direction.
E. None of these answers are correct.

查看答案

A major league pitcher is recorded as having thrown a 105 mph fastball. What is the speed of the pitch in m/s? One mile is equivalent to 1609m.()

A. 15 m/s B. 235 m/s C. 47 m/s D. 34 m/s E. 60 m/s

Consider the ratio of the surface area of a cylinder to its volume. Assume the height is equal to its diameter. What happens to this ratio if the diameter of the cylinder decreases by a factor of 2? ()

Consider the ratio of the surface area of a sphere to its volume. What happens to this ratio if the diameter of the sphere increases by a factor of 3? ()

In everyday language, speed and velocity are synonyms, but in physics ()

In everyday language, power and force are similar, but in physics ()

A. 15 m/s
B. 235 m/s
C. 47 m/s
D. 34 m/s
E. 60 m/s