A projectile is fired from point 0 at the edge of a cliff, with initial velocity components of v0x = 60.0 m/s and v0y = 175 m/s, as shown in the figure
The projectile rises and then falls into the sea at point P. The time of flight of the projectile is 40.0 s, and it experiences no appreciable air resistance in flight. What is the height of the cliff?
What will be an ideal response?
Answer: 840 m
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Series/Parallel Circuits: What current flows from the battery in the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.
A. 0.35 A B. 2.0 A C. 2.5 A D. 3.0 A
Heat is a form of energy, and it has long been known that heat energy will naturally flow
A. from solids to liquids, but only when the solid is melting. B. from hot to cold objects. C. from cold to hot objects. D. from liquids to solids, except when the solid is melting.
Our sun will conclude its life as
A) a white dwarf. B) a black hole. C) a neutron star. D) a red giant. E) a daffodil.
The figure below shows a container filled with water to the height shown. When we compare the pressure at A to the pressure at B, we find that
a.
.
b.