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3 years ago

The work brandon does in lifting a rock is calculated by multiplying the weight of the rock by the change in the of the rock.

Physics

1 answer:

kaheart [24]3 years ago

6 0

Velocity and a speed is the reason for the weight of it as well i actually have no idea

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1. Boyle's law relates the pressure of a gas to its

KIM [24]

Answer:

volume is the correct answer

Explanation:

7 0

2 years ago

How many protons would the element with the atomic number 10 contain?

galben [10]

The atomic number is the same as the proton number so the answer would be D) 10

3 0

3 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

3 years ago

Give the reason of evidence and claim.

Sliva [168]

Answer:

it shows a black screen

Explanation:

6 0

3 years ago

The lamp has a resistance of 10Ω

Jet001 [13]

D) Less than 20.

Explanation:

Equivalent resistance in a parallel combination is less than their individual value.

5 0

3 years ago