Kinetic energy = 1/2 (mass)*(velocity)^2
ke = 1/2 (1500kg) (17m/s)^2
ke = 216750 kg*m^2/s^2 = 216750 Joules
(sorry, I don't know significant figures. but this is otherwise the correct answer with the right units. hope this helps!! :))
<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.
This statement is true. The greater the mass is in an object, it is indeed the higher resistance to a change in movement the object will have. That only mean that the mass of an object and its resistance to change of movement is directly proportional.
Your eyes and brain would first register the event nearby sooner than the one farther away
<span>Convection means the movement happens inside a fluid
by the cause of too much heat and lesser density to rise, and also the colder
cause denser materials to sink.
Thus, Solid cannot undergo convection because the molecules inside the solid
are closer and can hardly move unlike liquid.
So, when the temperature got hotter or colder, the molecules on solid will only
vibrate and not convert.
Therefore, this concludes that the solid do not undergo convection rather
conduction of heat.</span>
