The four fundamental forces in nature are the strong, weak, electromagnetic, and gravitational interactions
Indicate whether the statement is true or false
T
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The axes on a Hertzsprung-Russell (H-R) diagram represent
A) mass and luminosity. B) luminosity and surface temperature. C) luminosity and apparent brightness. D) mass and radius.
Charge of uniform linear density (4.0 nC/m) is distributed along the entire x axis. Determine the magnitude of the electric field on the y axis at y = 2.5 m
a. 36 N/C b. 29 N/C c. 43 N/C d. 50 N/C e. 58 N/C
Balance the chemical equation: NO2 + H2O ? HNO3 + NO
In a rollercoaster, provided losses of thermal energy because of friction can be neglected because:
a. the mechanical energy increases as the car moves to the top of the slope. b. the mechanical energy decreases as the car moves to the top of the slope. c. the gravitational potential energy decreases as the car moves to the top of the slope. d. the kinetic energy decreases as the car moves to the top of the slope. e. the rollercoaster moves at constant speed as its height above the ground increases.