If the mass of a cart is quickly loaded to have twice the mass while a propelling force remains constant, the cart's acceleration

A) quadruples.
B) doubles.
C) stays the same.
D) halves.
E) none of these


Answer: D

Physics & Space Science

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Which of the following is true of Saturn's moon Enceladus?

A) It is rich in organic molecules. B) It has been warmed by tidal heating. C) It has plentiful liquid water necessary for the rise of life. D) It is airless so any form of water would boil away into space.

Physics & Space Science

What is the approximate latitude of the observer in the diagram below if they are located in the hemisphere containing the north celestial pole?


?

a.
90° N

b.
90° S

c.
50° N

d.
50° S

e.

Physics & Space Science

Two uses of ultrasound are __________ and __________

Fill in the blank(s) with correct word

Physics & Space Science

Doubling the focal length of the objective lens of a compound microscope will change the magnification by what factor?

a. 4 c. 2 b. 1/4 d. 1/2

Physics & Space Science