If a number in powers-of-ten notation is written as just the number 10 and the exponent, what is assumed to be part of the number?
a. Nothing.
b. The number 1 multiplied by 10 to the exponential power.
c. The number 10 multiplied by 10 to the exponential power.
d. The minus sign for the case of a negative number.
e. Some unknown number to multiply times 10 to the exponential power.
b
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Calculate the ground state energy of a harmonic oscillator with a classical frequency of 3.68 × 1015 Hz. (1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s)
A) 7.62 eV B) 15.2 eV C) 11.4 eV D) 5.71 eV
In an observation made in 1919 demonstrating the deflection of starlight due to gravity, light rays moving near ________ bent to a slightly different angle.
A. a laser with the same frequency of light B. the Earth at its equator C. the Sun D. the Moon
You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. When you increase the plate separation, what happens to the value of C?
1.It increases. 2.It decreases. 3.It stays the same.
A small ball is tied to one end of a light 2.5-m wire, and the other end of the wire is hooked to the ceiling. A person pulls the ball to the side until the wire makes an angle of 35° with the plane of the ceiling and then gently releases it
What is the angular speed of the ball, in rad/s, as it swings through its lowest point?