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Liono4ka [1.6K]
3 years ago
15

Assuming the same percent uncertainty and the same measurement device, what is the uncertainty in a blood pressure measurement o

f 71 mm Hg ?
Physics
1 answer:
Svetllana [295]3 years ago
5 0

Answer:

With a person’s blood pressure is measured to be 120 ± 2 mmHg, it will be 1.2mmHg

Explanation:

What is missing in the question is the percentage of uncertainty.

If we assume that a person’s blood pressure is measured to be 120 ± 2 mmHg, the percent uncertainty is computed as:

% uncertainty = 2mmHg/120mmHg x 100% = 1.7%

So,

The uncertainty in the blood pressure is = 1.7% / 100% * 71mmHg = 1.2mmHg

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Before it reaches the ramp, the toy's kinetic energy is

                                        (1/2) (mass) (speed²)

                                   =   (1/2) (3 kg) (16 m²/s²)

                                   =          24 Joules .

On the way up the ramp, its kinetic energy will change to
gravitational potential energy, and it'll stop when it's height
gives it  24 joules of potential energy.

         Potential energy  =  (mass) (gravity) (height)

                    24  joules  =  (3 kg) (9.8 m/s²) (height)

Divide each side by  29.4 kg-m/s²  (that's the same as 29.4 newtons):

                    Height  =  24 joules / 29.4 newtons

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7 0
4 years ago
In a nuclear power plant, Choose one: A. control rods regulate the rate of the reaction by releasing excess neutrons. B. pitchbl
Veronika [31]

Answer:

option A.

Explanation:

The correct answer is option A.

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The most common fuel used for the production of energy is U-235.

Control rods are inserted in the reactor if energy requirement is less and when energy requirement is large Control rods are remove. Hence, we can say that control rod can be used to regulate the reaction in the nuclear power plant.

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Answer:

orbitals

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3 years ago
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A car traveled 176 miles on 6.4 gallons of fuel the car averaged how many miles per gallon
earnstyle [38]
It would be 27.5 miles per gallon
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Which statement best explains why Earth’s outer core is in liquid form? The iron-nickel alloy melts due to hot temperatures. The
amm1812

Answer:

A. The iron-nickel alloy melts due to hot temperatures.

Explanation:

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