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3 years ago

The minimum amount of energy that can be absorbed or released by matter is called

Physics

1 answer:

bazaltina [42]3 years ago

4 0

Answer:

Quantum.

Explanation:

Quantum is defined as the discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.

It is the minimum amount of any physical entity (physical property) involved in an interaction or to put simply, it is defined as the minimum amount of energy that can be absorbed or released by matter.

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YAHOO ANSWERSA 1260 kg car moving south at 12.9 m/s collides with a 2430 kg car moving north. The cars stick together and move a

Fofino [41]

Explanation:

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3 years ago

The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. Therefore, a tran

mart [117]

Answer:

(a) 0.075

(b)20.1 mA

Explanation:

Vs = 9 V, is = 268 mA = 0.268 A

Vp = 120 V

(a) Let the number of turns in primary coil is Np and the number of turns in secondary coil of the transformer is Ns.

Ns / np = Vs / Vp

Ns / Np = 9 / 120

Ns / Np = 3 : 40 = 0.075

(b) Let the current drawn from the wall socket is ip.

Ns/ Np = ip / is

0.075 = ip / 0.268

ip = 0.0201 A = 20.1 mA

Power sent to the batteries = Vs x is = 9 x 0.268 = 2.412 W

5 0

3 years ago

You need to design a 60.0-Hz ac generator that has a maximum emf of 5200 V. The generator is to contain a 180-turn coil that has

OlgaM077 [116]

Answer:

0.082 T

Explanation:

Given:

Frequency of the generator (f) = 60.0 Hz

Maximum emf of the generator (E) = 5200 V

Number of turns (N) = 180

Area per turn (A) = 0.94 m²

Magnetic field magnitude (B) = ?

We know that, the angular frequency of the generator is given as:

$\omega=2\pi f$

Plug in the value of 'f' and solve for 'ω'. This gives,

$\omega=2\pi\times 60.0=120\pi\ rad/s$

Now, the maximum emf of the generator is given by the formula:

$E=NAB\omega$

Rewriting in terms of magnetic field, 'B', we get:

$B=\frac{E}{NA \omega}$

Plug in the given values and solve for 'B'. This gives,

$B=\frac{5200\ V}{180\times 0.94\ m^2\times 120\pi\ rad/s}\\\\B=\frac{5200\ V}{63786.897}\\\\B=0.082\ T$

Therefore, the magnitude of the magnetic field in which the coil rotates is 0.082 T.

8 0

4 years ago

Temperature of the resistor in an RC circuit. In this problem we will look at the temperature response of the resist

fomenos

RC circuit determines the capacitor's charging rate.

In RC (resistive and capacitive) circuits, a capacitor's time constant is the number of seconds required to charge it to 63.2% of the input voltage.

This duration is described by a single time constant. After two time constants, the capacitor will be charged to 86.5% of the input voltage.
The RC time constant, also referred to as tau, is the time constant (in seconds) of an RC circuit and is obtained by multiplying the circuit resistance (in ohms) by the circuit capacitance (in farads), This transient reaction time T is stated in terms of = R x C, where R is the resistor value in ohms and C is the capacitor value in farads.

Learn more about RC circuits here brainly.com/question/13450553

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4 0

2 years ago

During a workout, a football player pushes a blocking dummy a distance of 30 m. While pushing the dummy the same distance a seco

Pavel [41]

Explanation:

Power = work / time

Work = force × distance

Therefore:

Power = force × distance / time

Since the distance is the same, he would have to either increase the force he exerts or decrease the time (increase his velocity) in order to increase the amount of work done.

5 0

3 years ago