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4 years ago

Which activity performed by a medical professional is primarily based on an understanding of physics?

Physics

2 answers:

Vikentia [17]4 years ago

8 0

B) using a blood pressure monitor to find a patient's blood pressure.

Hope this helped!

crimeas [40]4 years ago

3 0

B is the answer!! Since physics is based off motion., it will be the motion of the blog's pressure

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Suppose a vacuum cleaner uses 120 J of electrical energy. If 45 J are used to pull air into the vacuum cleaner, how efficient is

postnew [5]

I believe that if you multiply 120 x 45 you would get 5,400 why? Because when a problem has "of" means to multiply.

So... the vacuum cleaner is 5,400 percent efficient :)

Sorry if it's wrong I'm only in fifth grade

3 0

3 years ago

Two speakers are spaced 15 m apart and are both producing an identical sound wave. You are standing at a spot as pictured. What

e-lub [12.9K]

Answer:

213.04

Explanation:

4 0

4 years ago

Read 2 more answers

A person in a kayak starts paddling, and it accelerates from 0 to 0.680 m/s in a distance of 0.428 m. If the combined mass of th

d1i1m1o1n [39]

Answer:

Net force, F = 44.66 N

Explanation:

It is given by,

Initial velocity of the person, u = 0

Final velocity of the person, v = 0.68 m/s

Distance, s = 0.428 m

Combined mass of the person and the kayak, m = 82.7 kg

We need to find the net force acting on the kayak i.e.

F = ma...........(1)

Firstly, we will calculate the value of "a" from third equation of motion as :

$v^2-u^2=2as$

$a=\dfrac{v^2-u^2}{2s}$

$a=\dfrac{(0.68\ m/s)^2-0}{2\times 0.428\ m}$

$a=0.54\ m/s^2$

Put the value of a in equation (1) as :

$F=82.7\ kg\times 0.54\ m/s^2$

F = 44.66 N

So, the net force acting on the kayak is 44.66 N. Hence, this is the required solution.

6 0

3 years ago

A ball is thrown horizontally from the top of a building and strikes the sidewalk after 2.8 s. How tall is the building? Neglect

Brut [27]

Answer:

h = 38.41 m

Explanation:

Given that,

A ball is thrown horizontally from the top of a building and strikes the sidewalk after 2.8 s.

We need to find the height of the building. Let it is h.

Initial speed of the ball, u = 0

Using second equation of motion to find h as follows :

$h=ut+\dfrac{1}{2}at^2\\\\\text{Put u = 0 and a = g}\\\\h=\dfrac{1}{2}gt^2\\\\=\dfrac{1}{2}\times 9.8\times 2.8^2\\\\=38.41\ m$

So, the building is 38.41 m tall.

3 0

3 years ago

Please help i need it to be answered by tomorrow may 1st i’m very frustrated

butalik [34]

Answer: At least one of his parents had brown eyes

Explanation: whoever had the brown eyes he got more genetics from them when it came to his eyes

8 0

3 years ago