Neils Bohr's frisbee (m = 450 g) lands on his neighbor's roof. If the roof is angled at 28o, what is the minimum coefficient of static friction needed to hold the frisbee still?

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology

Which of the following describes how a microwave heats food

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g