The "beta" particle is

A. electromagnetic radiation.
B. an electron.
C. a helium nucleus.
D. two electrons bound to two neutrons.


Answer: B

Physics & Space Science

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Electrostatic discharge that usually occurs during a thunderstorm

A. Waterspout

B. Tropical Cyclones

C. Tornado

D. Lightning

E. Great Red Spot

F. Dust Devil

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Is pressure a (A) vector or (B) scalar quantity?

(A) Vector quantity (B) Scalar quantity

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The newton is a unit of

A) force. B) mass. C) density. D) inertia.

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An airplane flying faster than the speed of sound of 340 m/s produces a shock wave with an angle ?0 = 50°. What is the speed of the plane?

A) 490 m/s B) 530 m/s C) 390 m/s D) 440 m/s E) 405 m/s

Physics & Space Science