The distance travelled by the car is 85 m
Explanation:
The car in this problem here is travelling by uniform motion (so, at constant velocity and constant speed). Therefore, the distance covered by the car after a time t is given by:
where
d is the distance covered
v is the speed
t is the time
For the car in this problem we have
v = 34 m/s
t = 2.5 s
Substituting into the formula, we find
So, the car has travelled for 85 m.
Learn more about speed here:
#LearnwithBrainly
When a force causes a body to move, work is done on the object by the force. Work is the measure of the energy transfer when a force 'F' moves an object through a distance 'd'. So we say that energy is transferred from one energy store to another when work is done, and therefore, energy transferred = work done.
Answer:
the greater the speed, the greater the electromotive force
* The metal pole must be parallel to the field
* you must keep the ball of the field
Explanation:
To determine the advice to the runners, let's use the Farad equation to and
fem = -N = -N
how the runners are moving
fi = B l x
fem = -N B l v
therefore the advice we can give are:
* the greater the speed, the greater the electromotive force
* The metal pole must be parallel to the field
* you must keep the ball of the field
Answer:
The magnetic field at the center of a circular loop is .
Explanation:
Given that,
Radius = 4.0 cm
Current = 2.0 A
We need to calculate the magnetic field at the center of a circular loop
Using formula of magnetic field
Where, I = current
r = radius
Put the value into the formula
Hence, The magnetic field at the center of a circular loop is .