Answer:
Weight = 3891.6 N
Explanation: Given that a body has half of the mass and the radius of the earth, that is,
Mass M = 1/2 × 5.972 × 10^24 kg
Where 5.972 × 10^24 kg is the mass of the earth.
M = mass of the body
M = 2.986 × 10^24 kg
r = 1/2 × 6400 m
Where 6400 kilometre is the radius of the earth and r is the radius of the body.
r = 3200 km
To find the weight, let us first find the gravitational strength of the object by using the formula
g = GM/r^2
Where G = 6.67408 × 10-11 m3kg-1 s-2
g = (6.67408 × 10^-11 × 5.972 × 10^24 ) ÷ (3200 ×1000) ^2
g = 3.985 × 10^14/1.024 × 10^13
g = 38.9 m/s^2
Formula for weight = mg
Where m = 100kg
Weight = 100 × 38.9
Weight = 3891.6 N
Answer:
Explanation:
Given that:
- Area of the plate of capacitor 1= Area of the plate of capacitor 2=A
- separation distance of capacitor 2,
- separation distance of capacitor 1,
- quantity of charge on capacitor 2,
- quantity of charge on capacitor 1,
We know that the Capacitance of a parallel plate capacitor is directly proportional to the area and inversely proportional to the distance of separation.
Mathematically given as:
.....................................(1)
where:
k = relative permittivity of the dielectric material between the plates= 1 for air
From eq. (1)
For capacitor 2:
For capacitor 1:
We know, potential differences across a capacitor is given by:
..........................................(2)
where, Q = charge on the capacitor plates.
for capacitor 2:
& for capacitor 1:
Answer:
it would be least to graetest
Explanation:
10-84
The kinetic energy (KE) is 250 J and the gravitational potential energy (GPE) is 392 J