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4 years ago

Type O negative blood is considered the universal red blood cell donor because it _____.

Physics

1 answer:

marissa [1.9K]4 years ago

4 0

Answer:

Honestly i think the answer is B

Explanation:

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PLEASE HELP ASAP!!!!!!!

devlian [24]

Remember that the left is NEGATIVE
and RIGHT is POSITIVE

16. +3N - 6N = -3N

therefore 3N to the left (because left = -)

17. +5N - 5N = 0N , zero resultant force

18. +6N - 4N = +2N

therefore 2N to the right (because right = +)

6 0

3 years ago

Two loudspeakers are placed on a wall 3.00 m apart. A listener stands 3.00 m from the wall directly in front of one of the speak

Mashutka [201]

Answer:

Part a)

$\Delta \phi = 2.2 \pi$

Part b)

$f = 411.3 Hz$

Explanation:

As we know that the observer is standing in front of one speaker

So here the path difference of the two sound waves reaching to the observer is given as

$\Delta x = 3\sqrt2 - 3$

$\Delta x = 1.24 m$

now phase difference is related with path difference as

$\Delta \phi = \frac{2\pi}{\lambda}(\Delta x)$

$\Delta \phi = \frac{2\pi}{\lambda}(1.24)$

here in order to find the wavelength

$\lambda = \frac{c}{f}$

$\lambda = \frac{340}{300} = 1.13$

now we have

$\Delta \phi = \frac{2\pi}{1.13}(1.24) = 2.2\pi$

Part b)

Now we know that when phase difference is odd multiple of $\pi$

then in that case the the sound must be minimum

So nearest value for minimum intensity would be

$\Delta \phi = 3\pi$

so we have

$3\pi = \frac{2\pi}{\lambda}(1.24)$

so we have

$\lambda = 0.827$

now we have

$\frac{340}{f} = 0.827$

$f = 411.3 Hz$

4 0

3 years ago

Complete the following table. Be sure to include units in your answer.

mel-nik [20]

Answer:

Complete the following table. Be sure to include units in your answer.

Explanation:

all you have to do is mautiply them

6 0

3 years ago

Which of the following BEST explains why stability is an important skill for athletes?

Irina-Kira [14]

Answer;

B. Without good stability, athletes are too clumsy to perform well.

Explanation;

Stability refers to the resistance to both linear and angular acceleration, or resistance to disruption of equilibrium.

Developing and enhancing core strength and stability helps athletes to maximize their power output and enhance game day performance. Additionally, Improving core strength and stability can also help athletes reduce their risk of injury.

8 0

4 years ago

Read 2 more answers

What are rocks formed from sediment called?

kherson [118]

a rock that is formed form sediments is called sedimentary rocks

please give brainlyist if correct

5 0

3 years ago

Read 2 more answers