Answer:
Three different types of levers exist, depending on where the input force, fulcrum, and load are. A class 1 lever has the fulcrum between the input force and load. A class 2 lever has the load between the fulcrum and input force. A class 3 lever is a lever that has the input force in between the fulcrum and the load.
Explanation:
Answer:
The induced current in the coil at the time 2 s is 0.00263 A
Explanation:
The equation for induced emf is equal to:

Where
B = magnetic field
A = area
θ = angle

For t = 2 s

The induced current is:

To solve this problem we will apply the concepts related to voltage as a dependent expression of the distance of the bodies, the Coulomb constant and the load of the bodies. In turn, we will apply the concepts related to energy conservation for which we can find the speed of this

Here,
k = Coulomb's constant
q = Charge
r = Distance to the center point between the charge
From each object the potential will be

Replacing the values we have that


Now the potential two is when there is a difference at the distance of 0.1 from the second charge and the first charge is 0.1 from the other charge, then,


Applying the energy conservation equations we will have that the kinetic energy is equal to the electric energy, that is to say

Here
m = mass
v = Velocity
q = Charge
V = Voltage
Rearranging to find the velocity

Replacing,


Therefore the speed final velocity of the electron when it is 10.0 cm from charge 1 is 
Answer:
so initial momentum is 0.22kgm/s
Explanation:
m1=0.20kg
m2=0.30kg
initial velocity of m1=u1=0.50m/s
initial velocity of m2=u2=0.40m/s
total momentum of the system before collision
Pi=m1u1+m2u2
Pi=0.20kg×0.50m/s+0.30kg×0.40m/s
Pi=0.1kgm/s+0.12kgm/s
Pi=0.22kgm/s