There are more neutrons than protons in most nuclei because neutrons have a smaller mass than the protons
What will be an ideal response?
Neutrons actually have a greater mass than protons. Neutrons inhabit the nucleus
to help keep protons bound to the nucleus. The neutrons shield protons from the charge of
other protons in the nucleus.
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An object is placed 10 cm in front of a mirror, and an image is formed that has a magnification of 2.5 . Which of the following statements is true?
a. This is the only true statement. b. The focal length of the mirror is 30 cm. c. The image is real. d. The image is inverted.
Angular and Linear Quantities: When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88 m/s.(a) What is her angular speed in rad/s?(b) What is the magnitude of her linear acceleration?
What will be an ideal response?
Graphical Analysis: If the velocity versus time graph of an object is a straight line making an angle of +30° (counter clockwise) with the time axis, the object is
A. moving with constant non-zero speed. B. moving with constant non-zero acceleration. C. at rest. D. moving with increasing acceleration.
Two identical blocks fall a distance H. One falls directly down; the other slides down a frictionless incline. Which has the larger speed at the bottom?