Answer:

Explanation:
The force acting on the electron due to the magnetic field is

where
is the charge of the electron
is its speed
is the intensity of the magnetic field
is the angle between the direction of the field and the velocity of the electron
Substituting all the numbers into the equation, we find

Answer:

Explanation:
Given:
- area of piston on the smaller side of hydraulic lift,

- area of piston on the larger side of hydraulic lift,

- Weight of the engine on the larger side,

Now, using Pascal's law which state that the pressure change in at any point in a confined continuum of an incompressible fluid is transmitted throughout the fluid at its each point.



is the required effort force.
Answer:
Volcano World
Explanation:
There are 3 main places where volcanoes originate:
-Hot spots
-Divergent plate boundaries
-Convergent plate boundaries (subduction zones)
200/1.5 = 133.33 seconds.
= approximately 2 mins and 13 secs.