It will move in the direction of applied force following the law of newton that is an object is stationary until an external force is applied then it moves in direction of force
Answer:
Radius of orbit = 3.992 × 
m
Altitude of Satellite =33541.9× m
Explanation:
Formula for gravitational force for a satellite of mass m moving in an orbit of radius r around a planet of mass M is given by;
Where G = Gravitational constant = 6.67408 × 10-11 
We are given
F= 800 N
m = 320 Kg
M = 5.972 × 
Kg
G = 6.67408 × 10-11
We have to find radius r =?
putting values in formula;
==> 800 =6.67408 ×
× 320 × 5.972 × / 
==> 800= 39.8576 × 
× 320 /
==> 800 = 12754.43 × /
==> = 12754.43 × /800
==> =15.94 ×
==> r = 3.992 × m
==> r = 39920×
m
This is the distance of satellite from center of earth. To find altitude we need distance from surface of earth. So we will subtract radius of earth from this number to find altitude.
Radius of earth =6378.1 km = 6378.1 × m
Altitude = 39920× - 6378.1 ×
Answer:
2.1x10^6m/s
Explanation:
One electron has a charge of –1.602e-19 C
mass of electron is 9.1e-31 kg
mass of proton is 1.6726e−27 kg
mass ratio is 1.6726e−27 / 9.1e-31 = 1838
The force is constant, F
distance is constant, d
a = F/m
a increases by a factor 1838, as m decreases by that factor
a = a₀1838
v₀² = 2a₀d
v² = 2a₀d1838
v²/v₀² = 2a₀d1838 / 2a₀d = 1838
v² = 1838v₀² = 1838(45000)²
v = 45000√1838 = 2.1e6 m/s
Answer:
An egg raised above the ground has potential energy due to the force of gravity. When dropped, the egg's potential energy is converted into the kinetic energy of motion. :)
Explanation:
Answer:
5 cm
Explanation:
Centripetal force varies directly with mass and the square of velocity, and inversely with radius. If k is the constant of proportionality:
F = k m v² / r
When m = 7 g, v = 20 cm/s, and r = 25 cm, then F = 112 dynes. Solving for k:
112 = k (7) (20)² / 25
k = 1
When m = 17 g, v = 40 cm/s, and F = 5440 dynes:
5440 = 1 (17) (40)² / r
r = 5
The radius is 5 cm.
