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Salsk061 [2.6K]
3 years ago
11

PLS HELP! WILL MARK BRANLIEST!!!

Physics
1 answer:
Finger [1]3 years ago
7 0

Answer:

d. epicentral distance scale

Explanation:

The depth of focus from the epicenter, called as Focal Depth, is an important parameter in determining the damaging potential of an earthquake. Most of the damaging earthquakes have shallow focus with focal depths less than about 70km. Distance from epicenter to any point of interest is called epicentral distance

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An emf of 28.0 mV is induced in a 501 turn coil when the current is changing at a rate of 12.0 A/s. What is the magnetic flux th
dmitriy555 [2]

Answer:

Φ = 5.589×10⁻⁵  Wb

Explanation:

The inductance of a coil is given as

L = e/(di/dt) ..................... Equation 1

Where L = inductance of the coil, e = induced e.m.f, di/dt = rate of change of current in the coil.

Also,

The inductance of each turn of the coil when a magnetic field is step up in the coil  is

L = NΦ/i ................. Equation 2

Where N = number of turns, Φ = magnetic field, i = current.

equating equation 1 and equation 2

e/(di/dt) = NΦ/i

making Φ the subject of the equation,

Φ = (e×i)/N.(di/dt) .................. Equation 3

Given: e = 28.0 mV = 0.028 V, N = 501 turns, di/dt = 12.0 A/s, i = 4.00 a

Substitute into equation 3,

Φ = (0.028×4)/(12×501)

Φ = 0.112/2004

Φ = 5.589×10⁻⁵ Weber

Φ = 5.589×10⁻⁵ Wb

6 0
3 years ago
What will the pressure of gas be if the temperature rises to 87°C
weeeeeb [17]

Answer: 0 degrees Celsius or 32 degrees Fahrehit

Explanation:

3 0
3 years ago
What is a parameter that is deliberately held constant during an experiment? A. a control B. a dependent variable C. an independ
Pani-rosa [81]
A.) A control variable 
7 0
3 years ago
Aristotle believed that everything on Earth is made of one of only 4 types of material: earth, air, water, or fire.
yuradex [85]
This is True.
Hope this helps.
6 0
3 years ago
Read 2 more answers
A bowling ball is far from uniform. Lightweight bowling balls are made of a relatively low-density core surrounded by a thin she
Leni [432]

Answer:

Part a)

I = 17.4 \times 10^{-3} kg m^2

Part b)

I = 14.9 \times 10^{-3} kg m^2

Explanation:

Part a)

Moment of inertia of the core of the ball

I_1 = \frac{2}{5}m_1r_1^2

I_1 = \frac{2}{5}(1.6)((\frac{0.196}{2})^2)

I_1 = 6.14 \times 10^{-3} kg m^2

now the moment of inertia for thin shell

I_2 = \frac{2}{3} m_2r_2^2

I_2 = \frac{2}{3}(1.6)((\frac{0.206}{2})^2)

I_2 = 11.3 \times 10^{-3} kg m^2

now total inertia of the ball is given as

I = I_1 + I_2

I = 17.4 \times 10^{-3} kg m^2

Part b)

Moment of inertia of uniform ball of mass 3.2 kg

I = \frac{2}{5} mr^2

I = \frac{2}{5}(3.2)((\frac{0.216}{2})^2)

I = 14.9 \times 10^{-3} kg m^2

4 0
3 years ago
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