E the temperature of a substance. Water has a very high specific heat. That means it needs to absorb a lot of energy before its temperature changes. Sand , on the other hand, have lower specific heats. This means that their temperatures change more quickly. When the summer sun shines down on them, they quickly become hot.
So we know F=ma
m means mass and a means acceleration
so Force= ma
so F=1300X1.07=1391N
hope you like it
if it helps you please mark the answer as brainliest answer
Answer:
i honestly don't know
Explanation:
but can you help me with a question
The time elapsed when the vehicles are closest to each other is 20 min.
The given parameters:
- Speed of the truck, u = 80 km/h
- Distance, d = 32 km
- Speed of the car, v = 50 km/h
<h3>Principles of relative speed</h3>
The time elapsed when the cars are close to each other is calculated by applying the principles of relative speed.
![(V_r) t = d\\\\V_r^2 = 50^2 + 80^2\\\\V_r =\sqrt{50^2 + 80^2} \\\\V_r = 94.34 \ km/h](https://tex.z-dn.net/?f=%28V_r%29%20t%20%3D%20d%5C%5C%5C%5CV_r%5E2%20%3D%2050%5E2%20%2B%2080%5E2%5C%5C%5C%5CV_r%20%3D%5Csqrt%7B50%5E2%20%2B%2080%5E2%7D%20%5C%5C%5C%5CV_r%20%3D%2094.34%20%5C%20km%2Fh)
![94.34 t = 32\\\\t = \frac{32}{94.34} \\\\t = 0.34 \ hr\\\\t \approx 20 \min](https://tex.z-dn.net/?f=94.34%20t%20%3D%2032%5C%5C%5C%5Ct%20%3D%20%5Cfrac%7B32%7D%7B94.34%7D%20%5C%5C%5C%5Ct%20%3D%200.34%20%5C%20hr%5C%5C%5C%5Ct%20%5Capprox%2020%20%5Cmin)
Thus, the time elapsed when the vehicles are closest to each other is 20 min.
Learn more about relative velocity here: brainly.com/question/24430414
Hello, sorry this is a little late!
I believe the correct answer to your question would be option D, <span>electric charges have electric fields surrounding them to allow them to exert forces on other objects without touching them.
I just took this test, and can 100% confirm this is the proper answer.
Hope this helps, and have a great day! :)</span>