The study of how the world works
Answer:
Explanation:
Q₁ = 20 X 10⁻⁶ C
Q₂ = -45 X 10⁻⁶ C
d is required distance.
F = Force between the = 7 N
F = k x Q₁ X Q₂ / d²
d² = k x Q₁ X Q₂ / F = 20 X 45 X 10⁻¹² X 9 X 10⁹ /7
=1.157
d = 1.075 m
True because on side is heavier than the other
Answer:
The elastic potential energy PE=143.47kJ
Explanation:
This problem bothers on the potential energy stored in a material.
Given data
Mass of the bungee jumper
m= 75kg
Height of jump down the cliff h=195m
We know that the elastic potential energy stored is same as the potential energy of the bungee jumper
PE= 1/2kx²= mgh
Assuming g is 9.81m/s²
PE= 75*9.81*195
PE= 143471.25J
PE=143.47kJ
What is potential energy?
Potential energy is the energy possessed by a body by virtue of it position.
The density in units of grams per milliliter is 1.0026 g/ml.
<h3>What is density?</h3>
Density is the measurement of how tightly a material is packed together.
Density = mass/volume (kg/m³)
Density = 2.09 lb/quart
1 pound = 0.454 kg = 454 g
1 quart = 946.353 ml
Conversion of the weight in lb/ml to grams per milliliter (g/ml)
= 2.09 lb/quart x 454 g/lb x (1 quart / 946.353 ml)
= 1.0026 g/ml
Thus, the density in units of grams per milliliter is 1.0026 g/ml.
Learn more about density here: brainly.com/question/6838128
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