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gladu [14]
3 years ago
12

Charge q is a unit of distance away from the source charge S. Charge p I'd two times further away. The force exerted between S a

nd q is 4 times the force extended between S and q
Physics
1 answer:
NikAS [45]3 years ago
6 0

Answer:

The force exerted between s and q is four times that force between S and p

Explanation:

Given that ;

A source charge S

Is at a 1 unit distance from another charger q

The force between S and q is given by columbs law;

F=k*q*S/r^2

F= K*q*S/1

F= KqS ( this is the force between charges q and S)

Also charge between S and P at 2 units distance is

F=K*P*S/r^2

F= K*P*S/2^2

F=KpS/4

Hence 4F=KpS (This is the force between p and S)

It can be seen that 4F=4kqs=kpS

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Why do the waves have different speeds in different layers of Earth's surface?
Genrish500 [490]

Answer:

Material's density

Explanation:

Seismic waves travel at different rates of speed based on a material's density. Hopefully, you understand that the Earth has three main layers: the crust, mantle, and core. Earthquake waves move faster through solids.

6 0
2 years ago
The coefficient of linear expansion of steel is 12 × 10-6 K-1 . What is the change in length of a 25-m steel bridge span when it
Westkost [7]

Answer:

0.012-m

Explanation:

∆L = α × Lo × (T-To)

α is the coefficient of linear expansion = 12 × 10-6 K-1

Lo = Initial length = 25-m

∆L = Change in length

(T-To) = 40 K

∆L = 12 × 10-6 × 25 × 40

∆L = 0.012-m

4 0
4 years ago
A lightning bolt has a current of 56,000 A and lasts for 80 x 10-6 seconds (80 μs). How much charge (in Coulombs) has flowed in
Alina [70]

Answer:

A cloud can discharge as much as 20 coulombs in a lightning bolt.

8 0
3 years ago
Which of the following is a form of kinetic energy?
Fudgin [204]

Answer:

hope this helps.

Explanation:

______

5 0
3 years ago
At high noon, the sun delivers 1150 w to each square meter of a blacktop road. if the hot asphalt loses energy only by radiation
Pie
Stephen`s Law:
P = (Sigma) · A · e · T^4
P in = P out
e = 1 for blacktop;
1150 W = (Sigma) · T^4
(Sigma) = 5.669 · 10 ^(-8) W/m²K^4
T^4 = 1150 : ( 5.669 · 10^(-8) )
T^4 = 202.875 · 10^8
T =  \sqrt[4]{202.857 * 10 ^{8} }
T = 3.774 · 10² = 377.4 K
Answer: Equilibrium temperature is 377.4 K. 
3 0
3 years ago
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