C. Your feet push down on the ground, and the ground pushes up on your feet.
6 months with no sunrise and the other 6 without a sunset, at some places on Earth, are the result of the orientation of Earth's axis.
~2.7 m/s. The circumference of the carousel, therefore the distance, is 22 meters, or 2 pi radius. Dividing that by the time will give you the velocity. Therefore, 22m / 8.2 seconds equals 2.7 m/s.
Answer:
25J
Explanation:
Given parameters:
Mass of the watermelon = 2kg
Speed before touching the ground = 5m/s
Unknown:
Kinetic energy = ?
Solution:
To solve this problem, we must understand that kinetic energy is the energy possessed by a body in motion.
K.E = m v²
m is the mass
v is the velocity
Now, insert the parameters and solve;
K.E = x 2 x 5² = 25J
I will assume you mean liquid lava, that is, magma that has been expelled by a volcano, and is flowing downhill, until it cools and solidifies as lava rock. Liquids typically have a generally inverse relationship between viscosity (resistance to flow) and temperature. That is, as the temperature increases, viscosity generally decreases (i.e., the lava gets “thinner” and “runnier”), as Gopismhas said. However, generally, in nature, lava doesn’t increase in temperature, but rather cools as it is expelled and flows downhill, and thus it is getting more and more viscous…until it solidifies.