Answer: 5 m, 2 s
Explanation:
gravity is roughly 10 m/s²downward
That means in one second, the velocity will have been reduced to zero
The average speed is (10 + 0) / 2 = 5 m/s
h = vt = 5(1) = 5 m
It will take as long to fall back to the thrower from rest so total flight is 1 + 1 = 2 s
Answer:
A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave. Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices.
Explanation:
Answer:
Explanation:
The loss of gravitational potential energy must be equal to the gain of kinetic energy since there are no other interactions at play (no friction, etc).
We know that the change of potential energy will be written as , where <em>h</em> is the difference between the different heights.
We know that the change of kinetic energy will be written as , where <em>v</em> is the final velocity and we have assumed it departs from rest.
We then have:
We transform km/h to m/s by multiplying by the conversion factors (which are equal to 1, so don't alter the result):
So for our values we have:
to three significant figures.
Answer:
The other end is called the south pole. When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. can you help me please asap Write at least 5 sentences on how you feel "War of the Worlds" will end. How will the problem of the aliens be fixed? Will Ray's son come back?