3 years ago

Electronegativity

1 answer:

3 0

<span>c. increases across a period and decreases down a group.</span>

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Nana76 [90]

Answer:

The answer is D.

Explanation:

This is because mass always remains constant and weight is dependent on a gravitational pull.

3 0

4 years ago

dimulka [17.4K]

I think the answer is D.
Hope this help

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3 years ago

yawa3891 [41]

False the correct answer is chemical bonds instead of thermal energy

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3 years ago

butalik [34]

Displacement = velocity * time

Just substitute the value, & solve the equation.

Hope this helps!

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3 years ago

Romashka [77]

A person runs up 40 stairs and then come down 10 steps

So total stairs upwards is given as

$N = 40 - 10 = 30$

now here we will have total height reached

$H = N\times h$

$H = 30 \times 0.25 = 7.5 m$

Now total energy used or mechanical work done is

$W = mgH$

$W = 790 \times 7.5 = 5925 J$

Now the mechanical power is given as

$P = \frac{W}{t}$

$P = \frac{5925}{20+ 5} = 237 W$

7 0

3 years ago