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mote1985 [20]
2 years ago
13

URGENTLY NEED HELP!!!!!!

Physics
1 answer:
Sav [38]2 years ago
6 0

Answer:

False.

Explanation:

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A 30.0 g mass of iron at 24.5°C is heated to 45.0°C. The theoretical specific
diamong [38]

Answer:

276.135 J

Explanation:

Given that:

mass of Fe = 30.0 g

initial temperature = 24.5°C

final temperature = 45.0°C

specific heat of Fe = 0.449 J/g°C

We can determine the thermal energy added by using the formula;

Q = mcΔT

Q = 30.0g × 0.449 J/g°C × (45.0 - 24.5)°C

Q = 276.135 J

8 0
3 years ago
As Clinton walks he pushes his shoe against the track.
Valentin [98]

Answer:A:The track pushes back on Clinton's shoe with the same force.

Explanation:According to Newton's third law of motion, for every action force there is an equal and opposite reaction force. In this case, the action force is Clinton's shoe pushing on the track. As this happens, there is an equal and opposite reaction force in which the track pushes back on Clinton's shoe with the same force.

4 0
3 years ago
Which list includes translucent objects only
Lunna [17]

Objects that let in light and blurry images are translucent.

Translucent is a term that refers to an adjective. This characteristic is the property of an object to allow the passage of light, without allowing visibility with high clarity through it.

This term is often confused with transparency. However, they differ because a transparent object lets light through easily and allows you to see clearly through it.

According to the above, objects that allow light to pass through but do not allow clear vision are translucent.

Learn more in: brainly.com/question/10626808

5 0
3 years ago
How does the role of blood protect the body
maksim [4K]

Well it transports white blood cells to infected areas.

4 0
3 years ago
Light of wavelength 530.00 nm is incident normally on a diffraction grating, and the first‑order maximum is observed to be 33.0∘
GarryVolchara [31]

Answer:

1028 slits/mm

Explanation:

We are given that

Wavelength of light, \lambda=530nm=530\times 10^{-9} m

1nm=10^{-9} m

\theta=33^{\circ}

n=1

We have to find the number of slits per mm are marked on the grating.

We know that

dsin\theta=n\lambda

Using the formula

dsin33^{\circ}=1\times 530\times 10^{-9}

d=\frac{530\times 10^{-9}}{sin33^{\circ}}

d=9.731\times 10^{-7} m

1m=10^{3}mm

d=9.731\times 10^{-7}\times 10^3mm

d=0.0009731mm

Number of slits=\frac{1}{d}

Number of slits=\frac{1}{0.0009731}/mm

Number of slits=1028/mm

Hence, 1028 slits/mm are marked on the grating.

8 0
3 years ago
Read 2 more answers
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