What is a short circuit?
a. A path with a very high resistance.
b. A path with a very low resistance.
c. A circuit with a very short path.
d. Any incorrectly wired circuit.
e. An electrical circuit that behaves unpredictably.
b
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Life forms became large and complex during the ______________ period
Fill in the blank(s) with correct word
Why would the weather become more severe as the greenhouse effect increased?
A) The depleted ozone layer would let in more particles from the solar wind. B) Warming of the planet would lead to terrible droughts and reduce the amount of water on the Earth. C) Warming would increase the evaporation of the oceans, leading to more water in the atmosphere and more frequent and severe storms. D) Warming would dry out the atmosphere and the crust, leading to devastation of the Earth through more meteor bombardment and volcanism. E) all of the above
If you have two molecules of TiO2, how many oxygen atoms would you have?
A) 4 B) 2 C) 3 D) 6 E) none
A horizontal disk with a radius of 10 cm rotates about a vertical axis through its center. The disk starts from rest at t = 0 and has a constant angular acceleration of 2.1 rad/s2 . At what value of t will the radial and tangential components of the linear acceleration of a point on the rim of the disk be equal in magnitude?
a. 0.55 s b. 0.63 s c. 0.69 s d. 0.59 s e. 0.47 s