All life on Earth is based on carbon chemistry
Indicate whether the statement is true or false
T
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Wave period is the reciprocal of
a. amplitude. b. frequency. c. wave velocity. d. all of these.
A proton is moving at an angle of 80° to a uniform magnetic field. What is the relationship between the direction of the force on the proton and the direction of the magnetic field?
A) parallel to the magnetic field B) at an angle of 10° to the magnetic field C) at an angle of 80° to the magnetic field D) at an angle of 180° to the magnetic field E) perpendicular to the magnetic field
Faraday's Law states that a voltage is induced in a circuit when there is a changing ________ passing through the circuit.
Fill in the blank(s) with the appropriate word(s).
According to the equation Ft = change in (mv), a foam rubber dashboard is safer than a metal one, for the force of impact, F, of an occupant against the dash is lessened in an accident. In this case, the "m" in this equation represents the
1) mass of the car, 2) mass of the person, 3) momentum of the car, 4) momentum of the person, and the "v" represents the 5) velocity of the car. 6) speed at which the person hits the dashboard. 7) relative velocity between cars in a collision. 8) change in velocity, which is 10 m/s2.