How many nuclear reactions occur in a proton-proton chain?
a. two
b. three
c. one
d. four
e. five
b
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The force exerted on an electron moving in a magnetic field is maximum when the electron moves
A) parallel to the magnetic field. B) perpendicular to the magnetic field. C) either of these D) neither of these
The position of an object that is oscillating on a spring is given by the equation x = (18.3 cm) cos[(2.35 s-1)t]. What are the (a) frequency, (b) amplitude, and (c) period of this motion?
What will be an ideal response?
A diffraction grating is to be used to find the wavelength of the light in the emission spectrum of a gas. The grating spacing is not known,
but a light having a known wavelength of 632.8 nm is deflected by 43.2° away from the central maximum in the second order by this grating. Light of the wavelength to be measured is deflected by 48.2° away from the central maximum in the second order. What is the wavelength of this light?
Power: A series circuit consists of an ac voltage source of voltage amplitude V and frequency 60 Hz, a resistor of resistance 163 ?, and a capacitor of capacitance 6.2 × 106 F. What must the source voltage amplitude V be for the average electrical power consumed in the resistor to be 529 watts? (There is no inductance in the circuit.)
Fill in the blank(s) with the appropriate word(s).