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3 years ago

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Which of the following is an INCORRECT statement describing energy. Total energy within a closed system stays constant. The tota

l energy in the Universe is in a state of flux. Energy can be stored as mass. Energy can be transferred from one form to another in a closed system.

2 answers:

nalin [4]3 years ago

7 0

Answer:

B

Explanation:

BabaBlast [244]3 years ago

3 0

Answer:B. the total energy in the universe is in a state of flux

Explanation:

cause yes. trust me

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Can someone please solve this

Zina [86]

Answer:

The gravity is pulling the diver downwards but the rotation of the body means gravity cant pull him down as quickly

Explanation:

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3 years ago

For part 2 I was told that The circuit below will accommodate up to three resistors in series. Explore the circuit. It is a seri

Amiraneli [1.4K]

(a) Draw the circuit diagram for the three resistors in series that you assembled in Part 2. Label the voltage and the resistances of each resistor

The diagram will look like the following:

As all the resistors are equal, their voltage drop will also be equal, which will be a third of the input voltage

(b) For the three resistors in series, how did the measured total voltage, current across each resistor, total current, and voltage drop across each resistor compare to the values that you calculated?

The value of the measured voltage on each resistor can be seen as to be exactly as calculated, which is 1/3 of the voltage input. The total current can be calculated as:

$I=\frac{V}{R+R+R}=\frac{15}{3*3}=\frac{15}{9}\approx1.7A$

Which is the one seen on the amperimeter

(c) How did the equivalent resistance, voltage drop across each resistor, total current, and total voltage change as you added resistors in series to the circuit?

The voltage drop on each resistor will decrease once you add more resistors, as there will be more total resistance, and thus less current. As the resistance of each resistor is constant, the relation V=RI given by Ohm's law will be reduced.

5 0

1 year ago

A coil 3.55 cm in radius, containing 470 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.2

slavikrds [6]

The Electric current is 1.11* 10^{-4}A

Given that the coil's radius is 3.55 cm (0.35 m),

The formula for the coil's area is A = r2 A = (3.14) (0.35)2 = 0.005024 m2.

R = Resistance = 600 N = Number of spins = 500 B = Magnetic field = (0.0120)

t + (3 x 10⁻⁵) t⁴

The number t = 5 is substituted for taking the derivative at both the induced current and the electric current.

The Electric current is therefore 1.11* 10^{-4}A
Electric current - The rate of electron passage in a conductor is known as electric current. The ampere is the electric current's SI unit. Electrons are little particles that are part of a substance's molecular structure. These electrons can be held loosely or securely depending on the situation.

To learn more about electric current please visit -brainly.com/question/12791045
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7 0

2 years ago

Read 2 more answers

Two loudspeakers on a concert stage are vibrating in phase. A listener 50.5 m from the left speaker and 26.0 m from the right on

mixer [17]

To solve this problem, it is necessary to apply the concepts related to the constructive interference caused by the wavelengths of the sound traveling in the air.

From the definition of constructive interference we know that

$\Delta x = n \lambda \rightarrow \lambda = \frac{\Delta x}{n}$

Where

$\Delta x =$ Distance between speakers

n = Integer which represent he number of repetition of the spectrum

$\lambda =$ Wavelength

At the same time the frequency is subject to the form,

$f = \frac{v}{\lambda}$

Where

$v = 343m/s \rightarrow$ Velocity (of the sound at this case)

From our given values we have to $\Delta x$ is

$\Delta x = 50.5m-26m$

$\Delta x = 24.5m$

The wavelength would be subject to the sound spectrum therefore for n = 1,

$\lambda = \frac{\Delta x}{n}$

$\lambda = \frac{24.5}{1}$

$\lambda = 24.5m$

Then the frequency would be,

$f = \frac{v}{\lambda}$

$f = \frac{343}{24.5}$

$f = 14Hz$

For the value of n = 2,

$\lambda = \frac{\Delta x}{n}$

$\lambda = \frac{24.5}{2}$

$\lambda = 12.25m$

Then the frequency would be,

$f = \frac{v}{\lambda}$

$f = \frac{343}{12.25}$

$f = 28Hz$

For n = 3,

$\lambda = \frac{\Delta x}{n}$

$\lambda = \frac{24.5}{3}$

$\lambda = 8.167m$

Then the frequency would be,

$f = \frac{v}{\lambda}$

$f = \frac{343}{12.25}$

$f = 42Hz$

From the frequencies obtained we can identify that the two lowest frequencies that can be heard due to constructive interference are 28Hz and 42Hz

5 0

3 years ago

Determine the electrical force of attraction between two balloons with separate charges of +3.5 × 10-8 C and -2.9 × 10-8 C when

kenny6666 [7]

Answer:

The electrical force of attraction between the balloons is $2.16\times 10^{-5}\ N$ .

Explanation:

Given that,

Charge 1, $q_1=+3.5\times 10^{-8}\ C$

Charge 2, $q_2=-2.9\times 10^{-8}\ C$

Distance between the charges, d = 0.65 m

We need to find the electrical force of attraction between two balloons. It is given by the formula as :

$F=k\dfrac{q_1q_2}{d^2}\\\\F=9\times 10^9\times \dfrac{3.5\times 10^{-8}\times 2.9\times 10^{-8}}{(0.65)^2}\\\\F=2.16\times 10^{-5}\ N$

So, the electrical force of attraction between the balloons is $2.16\times 10^{-5}\ N$ . Hence, this is the required solution.

3 0

3 years ago