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serg [7]
3 years ago
5

A combustion reaction usually gives off heat and light is it true or false

Physics
1 answer:
yanalaym [24]3 years ago
3 0
The answer is true I think
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Please help! Thanks so much! :)
notsponge [240]

Answer: B

Explanation: I'm not 100% sure tho sorry if i'm wrong

7 0
3 years ago
A proton and an electron traveling with the same velocity enter a uniform electric field. compared to the acceleration of the pr
kenny6666 [7]
The acceleration of the electron is larger than the acceleration of the proton.

The reason for this is that the mass of the electron is smaller (about 1000 times smaller) than the mass of the proton. The two particles have same charge (e), so they experience the same force under the same electric field E:
F=eE 
However, according to Newton's second law, the force is the product between the mass particle, m, and its acceleration, a:
F=ma 
which can be rewritten as
a= \frac{F}{m}
we said that the force exerted on the two particles, F, is the same, while the mass of the electron is smaller: therefore, from the last formula we see that the acceleration of the electron will be larger than that of the proton.

6 0
2 years ago
state and explain any effect on sensitivity of liquid in a glass thermometer (i) reducing the diameter of capillary tube​
Ad libitum [116K]

Answer:

please give me brainlist and follow

Explanation:

The measuring sensitivity of liquid-in-glass thermometers increases with the amount of liquid in the thermometer. The more liquid there is, the more liquid will expand and rise in the glass tube. For this reason, liquid thermometers have a reservoir to increase the amount of liquid in the thermometer.

4 0
3 years ago
If an airplane traveled 1800 km in 2 hours<br> what is its average speed
Vesnalui [34]

Answer:

900km h

Explanation:

duh

8 0
1 year ago
Windmills are used to convert wind energy into a more useful form. In most cases, there are three
sdas [7]
The kinetic energy of the wind ==> causes ==>
       the windmill to turn (mechanical energy) ==>
       which is used to turn an electric generator ==>
                      which generates electrical energy.
4 0
2 years ago
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