Answer:
P=9.58 W
Explanation:
According to Newton's second law, and assuming friction force as zero:
The acceleration is given by:
So the force exerted by the motor is:
The work done by the motor is given by:
And finally, the power is given by:
Distance= speed (multiplied by) time
Answer:
3893.99675 N
Explanation:
= 125 N
= 
= 
From Pascal's law
The force that the liquid exerts on the bottom of the bottle is 3893.99675 N
<u>Order sequence of steps that are involved in the production of work by a four-stroke heat engine as follows:
</u>
- Piston moves down, allowing fuel-air mixture to enter intake valve
- Piston moves up, compressing gas and causing gas to increase its temperature
- Combustion as gas is still compressed; increase in energy from combustion pushes piston down
- Piston moves up, pushing burned gases through exhaust valve: Spark plug fires, causing
Answer: Options D, A, C and B
<u>Explanation:
</u>
There are four basic steps of a four stroke engine- Intake, Combustion, Power and Exhaust. The first step is the intake of air plus fuel mixture in the combustion chamber. At this time, the piston moves down. Now when the chamber is closed, the spark plug ignites fire which expands the fuel gases.
The gases push down, piston and crankshaft rotates in this way. Once the gases the combustion is done, there is plenty of space in the chamber that makes the piston moves up. In this way a complete cycle is completed and the crankshaft moves. That’s the working of this four stroke engines.
F = 1440 N. The repulsion force between two identical charges, each -8.00x10⁻⁵C separated by a distance of 20.0 cm is 1440 N.
The easiest way to solve this problem is using Coulomb's Law given by the equation 
, where k is the constant of proportionality or Coulomb's constant, q₁ and q₂ are the charges magnitude, and r is the distance between them.
We have to identical charges of -8.00x10⁻⁵C, are separated by a distance of 20.0 cm, and we need to know the force of repulsion between the charges.
First, we have to convert 20.0 cm to meters.
(20.0 cm x 1m)/100cm = 0.20 m
Using the Coulomb's Law equation:
