A neutron and a proton have the same
a. charge.
b. half-life.
c. mass.
d. baryon number.
d
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The first planets around other Sun-like stars were discovered
A) by Huygens, following his realization that other stars are Suns. B) by Galileo following the invention of the telescope. C) at the turn of last century. D) about a decade ago. E) at the turn of this century.
In ultrasound the _____________ of the sound is much greater than in normal sound
a. frequency b. period c. wavelength d. amplitude e. speed
Which of these are SI units?
a. centimeters b. newtons c. pounds d. seconds e. none of the above
Projectile Motion: A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the acceleration due to gravity is 9.80 m/s2.(a) How far from the base of the table will it strike the floor?(b) How long will it be in the air?
What will be an ideal response?