The second statement is your answer:
No change in temperatures between seasons. Since tilt is the angle between the direction of positive pole and the normal to the orbital plane, seasons occur due to the tilt of axis. If there were to be no, or zero degree tilt, then there will be no season because of the lack in temperature changes. The amount of sunlight received remains same throughout the year which results in no temperature change
Answer:
and direction
Explanation:
because when we definite force force is the pull or push of an object and when a force is exerted on the object it works 3 tasks 1, it multiply the force , 2, it multiply the speed, 3, it changes the directions so when we see a vector quantity is a quantity that have both magnitude and direction so when it multiply it's force and speed the object will have magnitude and when it multiply it's direction the object will have a direction. thank you for reading this explanation.☺☺☺☺
Answer:
![8.71*10^{-15}](https://tex.z-dn.net/?f=8.71%2A10%5E%7B-15%7D)
Explanation:
The rest energy is the energy associated with the base ball at zero velocity which is expressed as
![Rest energy=mc^{2}\\](https://tex.z-dn.net/?f=Rest%20energy%3Dmc%5E%7B2%7D%5C%5C)
Note: the speed C is the speed of light which is expressed as 3*10^8
while the kinetic energy is the energy associated with the ball during its motion and is expressed as
![Kinetic energy=1/2mv^{2}](https://tex.z-dn.net/?f=Kinetic%20energy%3D1%2F2mv%5E%7B2%7D)
the ratio can be expressed as
![\frac{Kinetic Energy}{Rest Energy}=\frac{\frac{1}{2}mv^{2} }{mc^{2}}\\since V=39.6m/s\\C=3*10^{8}m/s\\\frac{Kinetic Energy}{Rest Energy}=\frac{\frac{1}{2}39.6^{2} }{(3*10^8)^{2}} \\\frac{Kinetic Energy}{Rest Energy}=\frac{784.08}{9*10^{16}} \\\frac{Kinetic Energy}{Rest Energy}=8.71*10^{-15}](https://tex.z-dn.net/?f=%5Cfrac%7BKinetic%20Energy%7D%7BRest%20Energy%7D%3D%5Cfrac%7B%5Cfrac%7B1%7D%7B2%7Dmv%5E%7B2%7D%20%7D%7Bmc%5E%7B2%7D%7D%5C%5Csince%20V%3D39.6m%2Fs%5C%5CC%3D3%2A10%5E%7B8%7Dm%2Fs%5C%5C%5Cfrac%7BKinetic%20Energy%7D%7BRest%20Energy%7D%3D%5Cfrac%7B%5Cfrac%7B1%7D%7B2%7D39.6%5E%7B2%7D%20%7D%7B%283%2A10%5E8%29%5E%7B2%7D%7D%20%5C%5C%5Cfrac%7BKinetic%20Energy%7D%7BRest%20Energy%7D%3D%5Cfrac%7B784.08%7D%7B9%2A10%5E%7B16%7D%7D%20%5C%5C%5Cfrac%7BKinetic%20Energy%7D%7BRest%20Energy%7D%3D8.71%2A10%5E%7B-15%7D)
It's always a good idea to start with the definition of the thing you're trying to find.
This problem is just trying to find out whether you KNOW the definition of acceleration. You may know it, but you haven't used it yet.
Average acceleration = (change in velocity) divided by (total time).
Change in velocity = (end value) minus (start value)
Change in velocity = (20m/s) - 0
Change in velocity = 20 m/s
Time = 10 s
Average acceleration = (20m/s)/(10s)
Average acceleration = 2 m/s^2
Dark energy is the name given to the mysterious force that's causing the rate of expansion of our universe to accelerate over time, rather than to slow down. That's contrary to what one might expect from a universe that began in a Big Bang. Astronomers in the 20th century learned the universe is expanding.