The helium in a child's balloon is composed of
A) former alpha-particle.
B) former beta particles.
C) both of these
D) neither of these
Answer: C
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In a certain region of space, a uniform electric field is in the x direction. A particle with negative charge is carried from x = 20.0 cm to x = 60.0 cm. The electric potential energy of the charge-field system:
1.increases. 2.remains constant. 3.decreases. 4.changes unpredictably.
__________________ is/are caused by the interaction of light waves with the telescope's apertures and thus limit the detail visible in an image
Fill in the blank(s) with correct word
The seasonal polar caps which appear and disappear with the seasons on Mars are made of
A) methane ice B) carbon dioxide ice C) water ice D) a uniform mixture of water and carbon dioxide ices
Ideal Gas Law: On a cold day, you take in 4.2 L of air into your lungs at a temperature of 0°C. If you hold your breath until the temperature of the air in your lungs reaches 37°C, what is the volume of the air in your lungs at that point, assuming the pressure does not change?
A. 4.2 L B. 4.4 L C. 4.6 L D. 4.8 L E. 5.0 L