Answer:
a.) the speed at the bottom is greater for the steeperhill
Explanation:
since the energy at the bottom of the steeper hilis greater
![mgh =\frac{1}{mv^2}](https://tex.z-dn.net/?f=mgh%20%3D%5Cfrac%7B1%7D%7Bmv%5E2%7D)
As we can see from above that v is higher when h ishigher.
<u>Answer:</u>
"Where friction or rubbing results in the transfer of electrons between particles, objects can become negatively or positively charged."
<u>Explanation:</u>
The motion resistance of one moving object with respect to another is called as "Friction". It isn't a basic force, like gravity or electromagnetism. Alternatively, scientists believe it is the product of the electromagnetic attraction in two touching surfaces between charged particles.
The friction have formula:
Friction force (<em>f </em>) = coefficient of friction × normal force (N)
For an instances when one ride a bicycle, an example of rolling friction is the contact between the wheel and the way.
Answer:
10.36m/s
Explanation:
From the question we are given;
Distance S = 5.40m
Initial velocity v= 1.17m/s
Required
Final velocity of the diver
Using the equation of motion
v² = u²+2gS
v²= 1.17²+2(9.8)(5.40)
v² = 1.3689+105.84
v² = 107.2089
v = √107.2089
v= 10.36m/s
Hence the required velocity is 10.36m/s
Answer:
Correct answer = (c) 1.0 uF
Explanation:
Capacitors in parallel = C₁ + C₂ + ...... + Cₙ
In this case, there are two capacitors of 0.5 uF
= 0.5uF + 0.5uF
= 1.0uF