Answer:
Explanation:
mass of top book = 2kg
mass of book under = 3kg
mass of table = 20kg
a) The diagram is in the attached file to this solution
b) Since the objects are at rest, the acceleration of each of the object is zero
c) Force of gravity giving that g = 10 is
for the top book = 2*10 = 20N
for the book under = 3*10 = 30N
for the table = 25*10 = 250N
d) for the top book = 2*10 - 2*10= 0N
for the book under = 3*10 - 3*10 = 0N
for the table = 25*10 - 25*10 = 0N
Answer: B)To the left of the charges.
Explanation: between the charges the electric field will not cancel but will be added since electric field lines from both charges point in the same direction. To the right of the charge the -4q will take over as it’s strength overcomes the strength of the +q charge. At this point the magnitude of +q will never reach a magnitude strong enough to cancel the -4q. To the left, it is further away from -4q and is closer to +q and electric field lines point in different direction
Hey
in the summer it is because of the meting of snow
in the spring it is rain
hope l helped
Answer:
a. 150 N
Explanation:
Gravitational Force: This is the force that act on a body under gravity.
The gravitational force always attract every object on or near the earth's surface. The earth therefore, exerts an attractive force on every object on or near it.
The S.I unit of gravitational force is Newton(N).
Mathematically, gravitational force of attraction is expressed as
(i) F = GmM/r² ........................ Equation 1 ( when it involves two object of different masses on the earth)
(ii) F = mg ............................... Equation 2 ( when it involves one mass and the gravitational field).
Given: m = 17 kg, g = 8.8 m/s²
Substituting into equation 2,
F = 17(8.8)
F = 149.6 N
F ≈ 150 N.
Thus the gravitational force = 150 N
The correct option is a. 150 N