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3 years ago

Can someone give me a situation where energy is being transferred, transformed or both? Thank you!

1 answer:

8 0

Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion. Thermal energy of the exhaust gases converted into thermal energy of steam through heat exchange. Thermal energy of steam converted to mechanical energy in the turbine.

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Four point masses of 3.0 kg each are arranged in a square on masslessrods. The length of a side of the square is 0.50m. What is

Zigmanuir [339]

Answer:

Part a)

$I = 1.5 kg m^2$

Part b)

$I = 0.75 kg m^2$

Part c)

$I = 1.5 kg m^2$

Explanation:

Part a)

Moment of inertia of the system about an axis passing through B and C is given as

$I = mL^2 + mL^2 + m(0) + m(0)$

$I = 2mL^2$

$I = 2(3 kg)(0.50^2)$

$I = 1.5 kg m^2$

Part b)

Moment of inertia of the system about an axis passing through A and C is given as

$I = m(0^2) + m(\frac{L}{\sqrt2})^2 + m(0) + m(\frac{L}{\sqrt2})^2$

$I = 2m\frac{L^2}{2}$

$I = (3 kg)(0.50^2)$

$I = 0.75 kg m^2$

Part c)

Moment of inertia of the system about an axis passing through the center of the square and perpendicular to the plane of the square

$I = m(\frac{L}{\sqrt2})^2 + m(\frac{L}{\sqrt2})^2 + m(\frac{L}{\sqrt2})^2 + m(\frac{L}{\sqrt2})^2$

$I = 4m\frac{L^2}{2}$

$I = 2(3 kg)(0.50^2)$

$I = 1.5 kg m^2$

8 0

3 years ago

What is the answer be fast

svetlana [45]

Answer:

Explanation:

Same numbers of protons but different number of neutron so i would go for A same atomic number different number of neutrons

5 0

3 years ago

A water wave has a frequency of 460 Hz and a wavelength of 18 meters. What is the speed of the wave?

Lunna [17]

solution;

given

speed of wave= frequency×wavelength

=460×18

= 8280m/s

Explanation:

<h2>first of all given should be written & by using the formula of speed of sound .</h2>

3 0

2 years ago

The temperature at 8:00

musickatia [10]

Change in temperature = final temperature - Initial temperature
Δt = t₂ - t₁
Δt = 17 - (-6)
Δt = 17 + 6 = 23 f

In short, Your Answer would be Option D

Hope this helps!

6 0

3 years ago

According to the Periodic Table of Elements, Calcium (Ca) has:

RSB [31]

Answer:

A- 20 protons and 20 electrons

Explanation:

8 0

3 years ago