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2 years ago

Help me with this plsss

Physics

1 answer:

Artist 52 [7]2 years ago

8 0

Answer:

that is going at a constant rate

Explanation:

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please tell th answer fast suppose A ball of mass M is thrown vertically upward with initial speed be its speed is continuously

Lisa [10]

Answer:.

the ball would go down and speed of it would not strike so that wouldnt be an example of the conversation momentum

Explanation:

The answer I think

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2 years ago

Which organisms play roles similar to organisms in water ecosystem

lina2011 [118]

Is there a multiple choice?

4 0

3 years ago

Ai là người phát hiện trái đất hình cầu đầu tiên ?

Scorpion4ik [409]

Answer:

Can't understand the language

5 0

2 years ago

Your friend decides to generate electrical power by rotating a 100,000 turn coil of wire around an axis in the plane of the coil

MakcuM [25]

Answer:

a) I=35mA

b) P=1.73W

Explanation:

a) The max emf obtained in a rotating coil of N turns is given by:

$emf_{max}=NBA\omega$

where N is the number of turns in the coil, B is the magnitude of the magnetic field, A is the area and w is the angular velocity of the coil.

By calculating A and replacing in the formula (1G=10^{-4}T) we get:

$A=\pi r^2 =\pi(0.23m)^2=0.16m^2$

$emf_{max}=(100000)(0.3*10^{-4}T)(0.166m^2)(140\frac{rev}{s})=69.72V$

Finally, the peak current is given by:

$I=\frac{emf}{R}=\frac{69.72V}{1400\Omega}=49.8mA$

we have that

$I_{rms}=\frac{I}{\sqrt{2}}=\frac{0.0498A}{\sqrt{2}}=0.035A$

$P_{rms}=I^2{rms}R=(0.035A)^2(1400\Omega)=1.73W$

hope this helps!!

6 0

2 years ago

erastova [34]

Answer: A. Exercising above your target heart rate.

The individual's current level of fitness depends on the amount of exercise needed. I would advise my friend to exercise above her/his target heart rate to help improve her/his cardiovascular endurance for an individual has genetically the capacity to adapt to training, his or her fitness goals, and to the component being developed such as improve cardiovascular endurance.

In addition, if my friend is exercising with in or below her/his target heart rate, her/his goal will not be achieve because her/his stamina and strength will not increase. If she/he will like to improve her/his cardiovascular endurance, a gradual increase in her/his workouts must be done. Therefore, she/he must exercise above her/his target heart rate.

8 0

3 years ago