You feel warm from the sun at the beach because of heat radiation
Indicate whether the statement is true or false
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An alloy is produced that is 40 atomic % Ni and 60 atomic % Cu.
Which of the following types of electromagnetic radiation has the smallest frequency?
a. x-rays b. visible light c. radio d. gamma-rays e. infrared radiation
A low-density, hot gas produces a continuous spectrum
Indicate whether the statement is true or false
In this video, angular momentum is only approximately conserved. This is because
Choose one: A. there are small external forces acting—friction and air resistance, for example. B. no quantities are ever really conserved. C. the person on the platform is exerting a force when she pulls her arms in and pushes them out. D. the measurement of angular momentum depends on your reference frame.