Answer:
Which has more inertia - a car with a mass of 900kg or a car with a mass of 1500kg - explain. The bigger the mass - the larger the inertia but you need to exert more force to start the movement.
Explanation:
Answer: 17cm.
Explanation:
The equation you're using is:
Δd = df - di
Which means the change in position is equal to the final position minus the starting position. In this case that works out to 20cm - 3cm = 17cm. We're only interested in how much the snail moved, not how long it took to move, so even though they give a time it actually doesn't matter for this question.
almost exactly 24 hours, and about 86,200 seconds.
Answer:
d = 44.64 m
Explanation:
Given that,
Net force acting on the car, F = -8750 N
The mass of the car, m = 1250 kg
Initial speed of the car, u = 25 m/s
Final speed, v = 0 (it stops)
The formula for the net force is :
F = ma
a is acceleration of the car
Let d be the breaking distance. It can be calculated using third equation of motion as :
So, the required distance covered by the car is 44.64 m.
To develop this problem we need to keep in mind the concept of centripetal energy and magnetic force.
The centripetal energy of a body by definition is given as,
Where,
m=mass
v=velocity
r=radius
In the other hand we have the magnetic force, defined by,
Where,
B=Magnetic Field
q= charge
v= Velocity.
In equilibrium we have that
Solving for have B,
Our values are given by,
<em>Therefore the strength of the magnetic field inside the solenoid is </em>