3 years ago

What compound is formed when two hydrogen atoms and one oxygen atom joined together?

Physics

2 answers:

BigorU [14]3 years ago

6 0

C is the answer for this problem.

tresset_1 [31]3 years ago

4 0

C. water

answer a has one sodium atom and one chlorine atom

answer b is a chemical reaction

answer d has only one hydrogen atom and one oxygen atom

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S = 10 + (-4) = 6

Displacement is vector quantity

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What do we call living things that share characteristics including processes that make life possible?

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2 years ago

A long ramp made of cast iron is sloped at a constant angle θ = 52.0∘ above the horizontal. Small blocks, each with mass 0.42 kg

dezoksy [38]

Answer:

For cast iron we have

$h = 0.92 m$

For copper

$h = 1.05 m$

For Lead

$h = 1.23 m$

For Zinc

$h = 2.43 m$

Explanation:

As we know that final speed of the block is calculated by work energy theorem

$W_f + W_g = \frac{1}{2}mv^2$

now we have

$-\mu_k mg cos\theta(\frac{h}{sin\theta}) + mgh = \frac{1}{2}mv^2$

now we have

$v^2 = 2gh - 2\mu_k g h cot\theta$

$v = \sqrt{2gh(1 - \mu_k cot\theta)}$

For cast iron we have

$4 = \sqrt{2(9.81)(h)(1 - 0.15cot52)}$

$h = 0.92 m$

For copper

$4 = \sqrt{2(9.81)(h)(1 - 0.29cot52)}$

$h = 1.05 m$

For Lead

$4 = \sqrt{2(9.81)(h)(1 - 0.43cot52)}$

$h = 1.23 m$

For Zinc

$4 = \sqrt{2(9.81)(h)(1 - 0.85cot52)}$

$h = 2.43 m$

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2 years ago

How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?

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