That statement is <em>false</em>.
"Condense" is what a gas does when it turns into liquid, and that's something that happens when the gas is cooled, not heated.
Answer:
it has more molecules than the burning match, which equals MORE total kinetic energy.
Explanation:
Answer:
D
Explanation:
D) The overall work done by gravity is zero
This statement is correct .
If m be the mass of each of the children and h be the height of tower
work done by gravity on the boys in going up = - mgh
it is so because force applied by gravity = mg downwards and displacement
is upwards
work done will be negative = - mgh
Work done by gravity on boys when they come down = + mgh because both force and displacement are downwards .
Hence total work done = - mgh + mgh = 0.
The children will have same kinetic energy as the inclined surface is friction-less so no energy will be dissipated hence addition of energy to boys in both the cases will be same.
Answer:
They're asking you to explain how the race went bit you have to roughly explain just by looking at the graph.
Explanation:
Alberta- She didn't start at the beginning but now she's running as fast as she can. Wow, she's gaining speed like crazy and may be the fastest contestant. (The line is extremely straight which means she gains speed fast and runs very quick at a constant speed)
Betsy- Betsy is starting slowly but surely and speeds up. She gets to the finish quite fast. (The line has a slanted slope at first but gets very straight and vertical eventually which means there is a high speed)
Carla- Carla is starting the race at 500 meters but she is running very smoothly and constantly without slowing down. (I say this because you can see on the distance line that she starts at the middle and for the speed you can see the line is straight which means its constant.)
Dora- Dora has a constant page and is running quite well but ooh she stops. Maybe she's already tired of running but she's got a long way to go. She's running again! A fast and constant pace just like at the start. (You can see at line is straight which means a constant pace but then the line stops which means she stopped running. Then at the end you can see a constant pace again)
Explanation:
It's displacement would be negative
displacement is a vector quantity.
'Backwards', we can assume, would be negative.
and forwards, positive. So going backwards would mean a negative displacement.
