A pilot punches the throttle lever forward, changing his speed from 0 m/s to 40 m/s in 7 seconds. The acceleration of the racecar is _________
Fill in the blank(s) with correct word
5.7 m/s2
Physics & Space Science
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A beta particle is another name for a(n)
a. electron b. proton c. neutron d. helium nucleus e. photon
Physics & Space Science
The Moon and Sun are approximately the same physical size
Indicate whether the statement is true or false
Physics & Space Science
You hold a 2 newton apple, having a mass of 0.2 kg, at rest in your hand. The net force on the apple is then
A) 2 newtons upward. B) 0.2 kg downward. C) 2 newtons downward. D) 0.2 kg upward. E) zero.
Physics & Space Science
An electron moving perpendicular to a magnetic field of 2.2 × 10-2 T moves in a circle of certain radius. If the electron is moving with a speed of 1.5 × 107 m/s, what is the radius of the circle?
A) 1.5 × 10-3 m B) 2.2 × 10-4 m C) 2.2 × 10-3 m D) 3.9 × 10-4 m E) 3.9 × 10-3 m
Physics & Space Science