Answer:
8.2 m/s
Explanation:
radius (r) = 1.3 m
coefficient of friction (u) = 0.19
acceleration due to gravity (g) = 9.8 m/s^{2}
for the passengers to remain stuck on the wall, the normal force must be equal to the centripetal force (while considering the coefficient of friction).
normal force = centripetal force x coefficient of friction
mg = x u
g = x u
v =
v =
v = 8.2 m/s
the minimum speed the passengers can have to stick to the wall = 8.2 m/s
Answer:
Explanation:
The displacement current is given by the expression;
where
Answer:
G = 6.6675 x N/
Explanation:
From Newton's law of universal gravitation,
F = .................. 1
Where F is the force of attraction, G is the universal gravitation constant, M is the mass of a massive object e.g earth, m is the mass of the smaller object e.g moon, r is the radius of the massive object.
Newton's second law states;
F = mg ................... 2
F is the force, m is the mass of the object and g is the gravitational force on the object.
Equating equations 1 and 2 gives;
mg =
So that;
g =
⇒ G =
where: g = 9.81 m/, r = 6371 km, M = 5.972 x kg.
G =
=
= 6.6675 x N/
The Universal Gravitational Constant (G) is 6.6675 x N/.
two waves moving through the same medium add their effects