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3 years ago

10

How far up can a 200 N elevator be lifted with 600 j of energy

1 answer:

nekit [7.7K]3 years ago

7 0

<span>A 50 kg student runs up a flight of stairs that is 6 m high. How much work is done? 3000 J. Calculate the work done when a force of 1 N moves a book 2 m. 2 J .... 200 W, 100 W. Calculate the power expended when a 500. N barbell is lifted 2.2 m in 2.0 seconds. 550 W. energy. the property of an object or system that ...</span>

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All of the energy comes from the sun but ______ capture this energy?

brilliants [131]

Answer:

Producers

Explanation:

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2 years ago

What is the value for the reaction: N2(g) + 2 O2(g) --> N2O4(g) in terms of K values from the reactions:

Valentin [98]

Answer : The correct expression will be:

$K=(K_1)^2\times K_2$

Explanation :

The chemical reactions are :

(1) $\frac{1}{2}N_2(g)+\frac{1}{2}O_2(g)\rightleftharpoons NO(g)$ $K_1$

(2) $2NO(g)+O_2(g)\rightleftharpoons N_2O_4(g)$ $K_2$

The final chemical reaction is :

$N_2(g)+2O_2(g)\rightleftharpoons N_2O_4$ $K=?$

Now we have to calculate the value of $K$ for the final reaction.

Now equation 1 is multiply by 2 and then add both the reaction we get the value of 'K'.

If the equation is multiplied by a factor of '2', the equilibrium constant will be the square of the equilibrium constant of initial reaction.

If the two equations are added then equilibrium constant will be multiplied.

Thus, the value of 'K' will be:

$K=(K_1)^2\times K_2$

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3 years ago

How much cesium (half-life = 2 years) would remain from a 10 g sample after 4 years?

Ksenya-84 [330]

It would be 2.5 g or A.

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2 years ago

Select all that apply.

kap26 [50]

I think it is A and C!

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2 years ago

I need to know the definition of a cell

Lady_Fox [76]

A cell is a microscopic living organism which is the smallest part of an organism such as a plant or animal.

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3 years ago