<h2>Answer </h2>
C. 40 m/s
<h2>Explanation </h2>
To solve this, we are using the kinematic equation for final velocity:
![v_f=v_i+a*t](https://tex.z-dn.net/?f=v_f%3Dv_i%2Ba%2At)
where
is the final velocity
is the initial velocity
is the acceleration
is the time
We know from our a problem that a motorcycle moving at 20 m/s accelerates uniformly 2 m/s^2 for 10 seconds, so
,
, and
.
Now we can replace the values
![v_f=v_i+a*t](https://tex.z-dn.net/?f=v_f%3Dv_i%2Ba%2At)
![v_f=20\frac{m}{s} +2\frac{m}{s^2} *10s](https://tex.z-dn.net/?f=v_f%3D20%5Cfrac%7Bm%7D%7Bs%7D%20%2B2%5Cfrac%7Bm%7D%7Bs%5E2%7D%20%2A10s)
![v_f=20\frac{m}{s} +2\frac{m}{s} *10](https://tex.z-dn.net/?f=v_f%3D20%5Cfrac%7Bm%7D%7Bs%7D%20%2B2%5Cfrac%7Bm%7D%7Bs%7D%20%2A10)
![v_f=20\frac{m}{s} +20\frac{m}{s}](https://tex.z-dn.net/?f=v_f%3D20%5Cfrac%7Bm%7D%7Bs%7D%20%2B20%5Cfrac%7Bm%7D%7Bs%7D)
![v_f=40\frac{m}{s}](https://tex.z-dn.net/?f=v_f%3D40%5Cfrac%7Bm%7D%7Bs%7D)
We can conclude that the velocity of the motorcycle will be 40 m/s after 10 seconds.
Answer:
Electromagnetic wave
Explanation:
Snow days are announced on the by phoning the parents and guardians and also the news about a snow day can be broadcast on the television or radio airwaves or on the internet which are forms of electromagnetic wave transmission
An electromagnetic wave are oscillations of electric and magnetic fields which form electric and magnetic field vibrations
The direction of the oscillating electric and magnetic fields is perpendicular to the direction of propagation of the electromagnetic wave.
Stay away from water. Try not to wash, shower, wash dishes, or have some other contact with water during a thunderstorm because lightning can travel through a building's plumbing.
Further Explanation:
Be aware
Check the climate conjecture before taking an interest in outside exercises. In the event that the estimate calls for tempests, defer your excursion or movement, or ensure sufficient safe house is promptly accessible.
Go inside
Keep in mind the expression, "When thunder thunders, go inside." Find a protected, encased asylum when you hear thunder. Safe havens incorporate homes, workplaces, strip malls, and hard-top vehicles with the windows moved up.
Hunch near the ground and isolated
On the off chance that you are gotten in an open zone, hunker down in a ball-like position (feet and knees together) with your head tucked and hands over your ears so you are down low with insignificant contact with the ground. Try not to rests. Lightning causes electric flows along the highest point of the ground that can be fatal more than 100 feet away. Hunching down is the best mix of being low and contacting the ground as meager as could be expected under the circumstances.
Discrete
On the off chance that you are in a gathering during a rainstorm, separate from one another. This will decrease the quantity of wounds if lightning strikes the
Answer Details:
Subject: Physics.
Level: High School
Key Words:
Be aware
Go inside
Hunch near the ground and isolated
Discrete
For further Evaluation:
brainly.com/question/6362387
brainly.com/question/12938965
Natural Selection is that the species that are best suited or adapted to their environment or most likely to survive and reproduce
And after a few generations evolution occurs