The particles that make up neutrons and protons are called
A. electrons
B. positrons
C. quarks
C. quarks
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A 1.0-?F and a 2.0-?F capacitor are connected in series across a 3.0-V voltage source. (a) What is the charge on the 1.0-?F capacitor? (b) What is the voltage across the 2.0-?F capacitor?
What will be an ideal response?
Most of the visible light we see coming from the sun originates from the
a. chromosphere. b. photosphere. c. corona. d. sunspots. e. magnetic field.
The Doppler shift of ultrasonic waves can measure the speed of blood in an artery. If the frequency of the stationary source is 95.0 kHz and the reflected sound has a Doppler shift of 210 Hz, what is the blood flow speed? (The speed of sound inside the body is 1 500 m/s.)
a. 1.0 m/s b. 1.7 m/s c. 3.3 m/s d. 3.9 m/s e. 6.5 m/s
Why is using a lumped heat capacity model for melting or freezing a sphere acceptable?
What will be an ideal response?