Answer:
F = 10.788 N
Explanation:
Given that,
Charge 1, 
Charge 2, 
Distance between charges, d = 0.1 m
We know that there is a force between charges. It is called electrostatic force. It is given by :

So, the force applied between charges is 10.788 N.
<span>The answer should be the vegitation. </span>
Answer:
34.17°C
Explanation:
Given:
mass of metal block = 125 g
initial temperature
= 93.2°C
We know
..................(1)
Q= Quantity of heat
m = mass of the substance
c = specific heat capacity
c = 4.19 for H₂O in 
= change in temperature
Now
The heat lost by metal = The heat gained by the metal
Heat lost by metal = 
Heat gained by the water = 
thus, we have
= 

⇒ 
Therefore, the final temperature will be = 34.17°C
km x h = km/h
First trial: 6 x 1 = 6km/h
Second trial: 9 x 2 = 18km/h
6 + 18 = <u>24km/h</u> (Total)
Or
6 + 9 = 15 km
2 + 1 = 3h
15 + 3 = 18
15 x 2 = 30
3 x 2 = 6
30 - 6 = <u>24km/h</u>
Answer:
3.5 cm
Explanation:
mass, m = 50 kg
diameter = 1 mm
radius, r = half of diameter = 0.5 mm = 0.5 x 10^-3 m
L = 11.2 m
Y = 2 x 10^11 Pa
Area of crossection of wire = π r² = 3.14 x 0.5 x 10^-3 x 0.5 x 10^-3
= 7.85 x 10^-7 m^2
Let the wire is stretch by ΔL.
The formula for Young's modulus is given by


ΔL = 0.035 m = 3.5 cm
Thus, the length of the wire stretch by 3.5 cm.