A mouse is running away from a cat at 0.75 m/s and, at 1.25 m from his mouse hole, he accelerates at a constant rate until he reaches his hole safely, 0.75 s later. What acceleration did he undergo during the final 1.25 m of his escape?

A. 1.8

B. 1.2

C. 4.8

D. 2.4

E. 6.4


D. 2.4

Physics & Space Science

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A radar pulse returns 5.0 × 10^?4 seconds after it is sent out, having been reflected by an object. What is the distance between the radar antenna and the object? (c = 3.00 × 10^8 m/s)

a. 1.5E+5 m b. 2.4E+5 m c. 7.5E+4 m d. 2.5E+4 m e. 4.3E+4 m

Physics & Space Science

Imagine you throw a tennis ball vertically into the air. At the exact top of its trajectory it is at rest. What is the magnitude of its acceleration at this point?

A. 9.8 m/s2
B. –9.8 m/s2
C. 0 < < 9.8 m/s2
D. 0
E. Other (specify)

Physics & Space Science

What is the efficiency of an ideal Carnot engine operating between a reservoir in which ice and water coexist, and a reservoir in which water and steam coexist? The pressure is constant at 1.0 atm for both reservoirs

A) 27% B) 0.27% C) 100% D) 1.0% E) 15%

Physics & Space Science

Mountains characterized by folded rock strata are known as ______________ mountains

Fill in the blank(s) with correct word

Physics & Space Science