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4 years ago

10

How is energy conserved in a process of a heart beat

1 answer:

Westkost [7]4 years ago

3 0

Explanation:

energy conservation and fatigue management -tiredness is a common symptom of a heart attack and although rest is important activity is also required to facilitate a return to health. an occupational therapist said energy conservation and fatigue management is techniques to be implemented throughout the day. to help clients achieve their goals

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A block on the end of a spring is pulled to position x 5 A and released from rest. In one full cycle of its motion, through what

vesna_86 [32]

Answer:

20 A

Explanation:

Given

Spring pulled from position

x = 5A

we need to calculate total distance of one full cycle of spring motion

if you see image below, you understand easily

When cycle complete

Its total distance become 20 A

5 0

3 years ago

How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 23.0 cm in diameter to p

lyudmila [28]

Answer:

10573375000

$216.57162\ N/C$

Explanation:

k = Coulomb constant = $8.99\times 10^{9}\ Nm^2/C^2$

r = Distance = $\dfrac{d}{2}=\dfrac{23}{2}=11.5\ cm$

E = Electric field = 1150 N/C

Electric field is given by

$E=\dfrac{kq}{r^2}\\\Rightarrow q=\dfrac{Er^2}{k}\\\Rightarrow q=\dfrac{1150\times 0.115^2}{8.99\times 10^9}\\\Rightarrow q=1.69174\times 10^{-9}\ C$

Number of electrons is given by

$n=\dfrac{1.69174\times 10^{-9}}{1.6\times 10^{-19}}\\\Rightarrow n=10573375000$

Number of excess electrons is 10573375000

r = 0.115+0.15 = 0.265 m

$E=\dfrac{kq}{r^2}\\\Rightarrow E=\dfrac{8.99\times 10^9\times 1.69174\times 10^{-9}}{0.265^2}\\\Rightarrow E=216.57162\ N/C$

The electric field is $216.57162\ N/C$

4 0

3 years ago

The diagram below shows a light ray striking Medium A and Medium B at the same angle.

zepelin [54]

Answer: D Medium B is denser than Medium A because light bends more in Medium B.

Explanation: The more the light bends the less energy it has

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"orbiting the Sun in an elliptical orbit"

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3 years ago

When asked to describe resistance you say, "It is an object's ability to

Vesnalui [34]

Accept the flow of current and is measured in ohms

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