A gamma ray is another name for a(n)
a. electron
b. proton
c. neutron
d. helium nucleus
e. photon
E
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A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20° and increasing at the rate of 10°/s, what is the magnitude of the induced emf in the loop?
a. 13 mV b. 0.27 V c. 4.8 mV d. 14 mV e. 2.2 mV
A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the net force on the ball?
A) 0 N B) 20 N C) 40 N D) 50 N E) 100 N
Parallax is the apparent change in location of an object due to the motion of the observer
a. True b. False Indicate whether the statement is true or false
On a cold day, when the air temperature is 0°C, you empty your lungs and take a deep breath, filling your lungs with 4.2 L of air
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) 4.6 L B) 4.4 L C) 5.0 L D) 4.8 L E) 5.2 L