Red supergiants like Betelgeuse and Antares
Well if we don't recycle paper and use it up too fast, more trees would be chopped down, which is not good for the environment. Plastic can be dangerous and release toxic chemicals so we have to handel it well. Btw, what grade are you in?
Explanation:
It is given that,
Initial velocity of frog, u = 100 m/s
It jumps at an angle of 60 degrees.
(a) Let are the x and y components of velocity. It can be calculated as :
(b) Let y is the maximum height reached by the frog. It can be calculated using the third equation of motion as :
At maximum height,
and a = -g
y = 382.63 meters
(c) Let t is the time taken by the frog to reach its maximum height. It can be calculated as :
t = 8.83 seconds
Hence, this is the required solution.
Answer:
Explanation:
3. The word circuit means "go around", therefore a circuit is a pathway or closed path around which electricity (or water) flows.
4. Electrons flowing through a wire can be compared to water flowing through a hose. Once the flow of electrons or water is going, work, is performed.
5. You would get shocked in a bumper car by touching the floor and the ceiling at the same time. This means you are completing the circuit allowing electricity to flow.
6. Electricity from a wall outlet has enough energy to stop your
heart.
7. Electricity is the flow of electrons, because electrons move or jump from atom to atom.
8. Materials that allow electrons to move easily from atom to atom are called conductors.
9. Materials that do not allow electrons to flow easily are called insulators.
10. Semi- conductors are materials that are somewhere in between
.
11. Voltage is the force or pressure of electricity and is compared to the amount of water pressure in a hose.
12. Current (amps
) is the amount of electricity and is compared to the amount of water in a hose
.
13. Watts (power) is the term for work performed by electricity.
Earth moves fastest in its orbit when it is nearest to the sun.