Tripling the frequency of a photon would ______________ its energy
Fill in the blank(s) with correct word
triple
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The Earth-centered model of the solar system is called the ______________ model
Fill in the blank(s) with correct word
A uniform rod (mass = 1.5 kg) is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest in a horizontal position. What is the angular speed of the rod when the rod makes an angle of 30° with the horizontal? (The rotational inertia of the rod about the pin is 2.0 kg/m2)
a. 2.2 rad/s b. 3.6 rad/s c. 2.7 rad/s d. 3.1 rad/s e. 1.8 rad/s
Amino acids found in protein in life on Earth are
A) a unequal mixture of left-handed and right-handed molecules, left-handed being most abundant B) all left-handed molecules C) all right-handed molecules D) an equal mixture of left-handed and right-handed molecules
What is the number of molecules of O2 consumed if you combust one mole of CH4 according to the following balanced equation?
CH4 + 2 O2 ? CO2 + 2 H2O A) 1 molecule B) 2 molecules C) 6.022 × 1023 molecules D) 1.204 × 024 molecules E) 1 g of molecules