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Trava [24]
3 years ago
5

What is a 7 letter word that describes the relationship between frequency and period?

Physics
1 answer:
adoni [48]3 years ago
3 0
Present. NOT SURE IF THIS IS EVEN RIGHT!! I JUST GUESSED AND THOUGHT
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A commonly used unit of electrical energy.
ladessa [460]
The two most common units of electric energy is Watts or hertz.
8 0
3 years ago
When two substances are mixed together, a color change is observed. Does this mean that a chemical reaction has definitely occur
Elanso [62]
Nope, color change can also occur during a physical change. 
7 0
3 years ago
A 63 gg ice cube can slide without friction up and down a 30∘30∘ slope. The ice cube is pressed against a spring at the bottom o
tatiyna

Given Information:

slope angle = θ = 30°

spring constant = k = 30 N/m

compressed length = x = 10 cm = 0.10 m

mass of ice cube = m = 63 g = 0.063 kg

Required Information:

distance traveled by ice cube = d = ?  

Answer:

distance traveled by ice cube = 0.48 m

Explanation:

Using the the principle of conversation of energy, the following relation holds true for this case,

mgh = 1/2*kx²

h = 1/2*kx²/mg

Where h is the height of the slope, m is the mass of ice cube, k is the spring constant and x is the compressed length o the spring and g is gravitational acceleration.

h = 1/2*kx²/mg

h = 1/2*30(0.1)²/0.063*9.8

h = 0.242 m

From trigonometry ratio,

sinθ = h/d

d = h/sinθ

d = 0.242/sin(30)

d = 0.48 m

Therefore, when the ice cube is released, it will travel a total distance 0.48 up the slope before reversing direction.

3 0
3 years ago
We think of the response of the circuit as the ratio of the maximum current to the maximum voltage provided. Explain why the rat
nexus9112 [7]

Answer:

Z = R, i = V/Z,    w = √1 / LC

Explanation:

In an RLC circuit the impedance of the circuit is

          Z = √[R² + (X_{L} - X_{C})²

Where

      X_{L} = wL

      X_{L} = 1 / wC

They are the reactances of the inductor and the capacitor, in this case the current advances to the voltage in the first and is delayed from the voltage in the second, so when the two values ​​give the same reactance the current goes in phase with the voltage and the impedance is minimal

          Z = R

          V= i Z

           i = V/Z

Therefore the current is maximum, this occurs when

       w = √1 / LC

Saying that this is the resonant frequency

5 0
2 years ago
The turntable in a microwave oven has a moment of inertia of 0.039 kg⋅m2 and is rotating once every 4.4 s . Part A What is its k
gayaneshka [121]

To solve this problem it is necessary to apply the concepts related to Kinetic Energy, specifically, since it is a body with angular movement, the kinetic rotational energy. Recall that kinetic energy is defined as the work necessary to accelerate a body of a given mass from rest to the indicated speed.

Mathematically it can be expressed as,

KE = \frac{1}{2} I\omega^2

Where

I = Moment of Inertia

\omega =Angular velocity

Our values are given as

I = 0.039kg\cdot m^2

A revolution is made every 4.4 seconds.

\theta = 1 rev \rightarrow 4.4s

\Rightarrow \omega = \frac{1rev}{4.4s}

If the angular velocity is equivalent to the displacement over the time it takes to perform it then

\omega = 0.2272rev/s(\frac{2\pi rad}{1rev})

\omega = 1.42rad/s

Replacing at our previous equation we have,

KE = \frac{1}{2} I\omega^2

KE = \frac{1}{2} (0.039)(1.42)^2

KE = 0.03993J

Therefore the kinetic energy is equal to 3.9*10^{-2}J

6 0
3 years ago
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