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ratelena [41]
3 years ago
12

sprinters set in the starting blocks at the beginning of a race rely on what kind of energy conversion

Chemistry
1 answer:
Vikki [24]3 years ago
8 0
<span>Earth's gravitational potential energy: GPE = mgh = Gravity (9.81m/s2) × Mass (kg) × Height (m)
it's k</span><span>inetic energy</span>
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What happened to a balloon when it is put in freezer
e-lub [12.9K]

The frozen balloon shrank because the average kinetic energy of the gas molecules in a balloon decreases when the temperature decreases. This makes the molecules move more slowly and have less frequent and weaker collisions with the inside wall of the balloon, which causes the balloon to shrink a little.

5 0
3 years ago
Fe2O3 +3CO--2Fe+3CO2 .identify the substance oxidized ,reduced and oxidizing agent and reducing agent​
VikaD [51]

Answer:

Oxidized : CO

Reduced: Fe

Oxidizing agent: Fe2O3

Reducing agent: CO

Explanation:

Loss of electrons is oxidation while gaining of electrons is reduction.

CO is a reducing agent, Fe2O3 is an oxidizing agent.

Each carbon atom is oxidized in CO. CO is the reducing agent

Each Fe atom in FeO3 is reduced. FeO3 is the oxidizing agent

6 0
3 years ago
A fixed number of moles of an ideal gas are kept in a container of volume V and an absolute temperature T. If T and V are both d
liubo4ka [24]

Answer:

If the temperature and volume ot a gas increases, the r.m.s. velocity of the molecules in the gas will be 2  times the original r.m.s. molecular velocity.

If T doubles while V is held constant, the new net internal energy of the gas will be 2 times the original internal energy of the gas.

Explanation:

Temperature and root mean square velocity are directly proportional to one anoth. If the temperature increases, root mean square velocity also increases and vice versa, while temperature is also directly proportional to the internal energy of the gas molecules, higher the temperature, higher will be the internal energy and lower the temperature so internal energy will be decreased.

8 0
3 years ago
7)What mass of hydrogen gas is produced when 8.56grams of lithium reacts with water to also produce lithium
Gnom [1K]

i guess this is the answer .

3 0
2 years ago
in which level of organization would the roots of a plant most likely be classified? Please explain too
abruzzese [7]

Kaka ml nyu yan wala kaming paki kung ano ang lagi ginagawa nyu

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