Answer:

Explanation:
According to Faraday-Newmann-Lenz, the induced emf in the loop is given by:
(1)
where
is the rate of variation of the magnetic flux through the loop.
We know that the magnetic flux through the loop is given by

where B is the magnetic field and A is the area of the loop. Since the magnetic field is constant, we can write the variation of flux as

So eq.(1) becomes

and the problem gives us:
is the magnetic field
is the rate at which the area changes
Substituting into the equation, we find

Answer - An object is in motion when its distance from another object is changing. ... A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.
Larger mass creates a stronger pull
Answer:
a)Change in the speed = 1.41 m/s
b)The final speed will be 3.11 m/s
Explanation:
Given that
Acceleration ,a= 4.7 x 10⁻³ m/s²
a)
We know that
v= u + a t
v=final speed ,u=initial speed
t= time ,a= acceleration
Change in the speed
v- u = a t
t= 5 min = 5 x 60 s = 300 s
v- u = 4.7 x 10⁻³ x 5 x 60 m/s
v-u = 1.41 m/s
Change in the speed = 1.41 m/s
b)
Given that
u= 1.7 m/s
v-u = 1.41 m/s
v= 1.7 + 1.41 m/s
v=3.11 m/s
The final speed will be 3.11 m/s