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2 years ago

Which vector has an x-component with a length of 3? А. С. B. d C. a D. b

Physics

2 answers:

zhannawk [14.2K]2 years ago

6 0

Answer:

D. b

Explanation:

the endpoint of vector b is at 3, which means the length is 3

worty [1.4K]2 years ago

4 0

Answer:

B.d

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AveGali [126]

Answer:

2.828 km

Explanation:

radius of lake, r = 2 km

Let O be the centre of the circular lake and you walk from A to A to D.

Displacement is the measure of shortest distance between two points.

According to the diagram , the displacement AD is

$AD^{2}=AO^{2}+OD^{2}$ (By using the Pythagorean theorem)

$AD^{2}=2^{2}+2^{2}$

AD = 2.828 km

thus, the displacement is 2.828 km.

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2 years ago

The revival of the atomic concept was catalyzed by what experimental observation?

IgorC [24]

It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The revival of the atomic concept was catalyzed by the experimental observation which is Constant <span>composition in compounds. Hope this helps.</span>

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2 years ago

If a bag of pretzels says it contains 10 servings, and each serving is 150 calories, how many calories would you consume if you

Sindrei [870]

Answer:

5400

Explanation:

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2 years ago

How long is the racetrack if it takes a racecar 3.4 s travelling at 75 m/s to finish?

RSB [31]

Answer:

255 metres

Explanation:

The answer to thi question is actually quite simple. Since the car goes for 3.4 seconds, and it goes 75 metres every second, the answer is just 3.4 multiplied by 75 Metres.

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2 years ago

A rigid container holds 0.30g of hydrogen gas.

Strike441 [17]

Answer:

Part A: $\mathbf{Q =94 \ J}$ to two significant figures