Household circuits are wired in parallel. Adding more appliances to a parallel circuit
A. increases the voltage sent to each appliance.
B. decreases the current sent to each appliance
C. increases the current drawn from the circuit but does not change the current to each appliance.
C. increases the current drawn from the circuit but does not change the current to each appliance.
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The sun makes most of its energy by the CNO cycle
Indicate whether the statement is true or false
Which of the following is not evidence supporting the giant impact theory for the formation of the Moon?
A) Computer simulations show that the Moon could really have formed in this way. B) The composition of the Moon is similar to that of Earth's outer layers. C) The Moon is depleted of easily vaporized materials, as we would expect from the heat of an impact. D) Scientists have found several meteorites that appear to be the remains of the object that caused the giant impact. E) We see signatures of giant impacts on other planets.
When a mass of 0.350 kg is attached to a vertical spring and lowered slowly, the spring stretches 12.0 cm. The mass is now displaced from its equilibrium position and undergoes simple harmonic oscillations. What is the period of the oscillations?
A) 0.695 s B) 0.483 s C) 0.286 s D) 0.0769 s E) 1.44 s
The molecular mass for chlorine is not an integer multiple of the molecular mass of hydrogen but is about 35.5 times the molecular mass of hydrogen. This is primarily because:
a. of the binding energy of the chlorine nucleus. b. there are different isotopes of chlorine. c. the chlorine nucleus has 35.5 nucleons. d. the proton and neutron have different masses.