The force of gravity between two objects is given by:
where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is their separation
In this problem, the mass of the object is
, while the Earth's mass is
. Their separation is
, therefore the gravitational force exerted on the object is
B) Moving with zero acceleration.
Explanation:
Acceleration is defined as the rate of change of the velocity per unit time:
In a velocity-time graph, this ratio corresponds to the slope of the curve. In fact:
(change in velocity) corresponds to the increase in the y-axis
(change in time) corresponds to the increase in the x-axis
So, acceleration corresponds to the slope of the curve in a velocity-time graph. For cart C, the slope is zero, therefore the acceleration is also zero.
Answer:
NO
Explanation:
The angular position of a diffraction null is given by
Asinθ=m λ=m c/f
Given that A is the slit width,
and m is an integer.
The wavelength of the second null satisfies
λ= A sinθ₁/2
of which if there were distinct third null it will satisfy
sinθ₂=3λ/A= 3* sin 45/2
λ=(3*0.7071)/2
λ=2.121/2
λ=1.060
Of which 1.060 is greater than 1
<u>Answer:</u>
If a car weighs 6310 N on earth, its mass = 643.22 kg.
<u>Explanation:</u>
Weight of a body is given by the product of it's mass and acceleration due to gravity on that planet.
So weight of body in earth = mass of body* acceleration due to gravity on earth.
Acceleration due to gravity in earth =
Here it is given weight of car = 6310 N
So we have, 6310 = mass of car* 9.81
Mass of car = 6310/9.81 = 643.22 kg.
So If a car weighs 6310 N on earth, its mass = 643.22 kg.
I believe the correct answer would be letter c) circuit breaker