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ale4655 [162]
3 years ago
6

A 30 kg mass sits on a level surface with a coefficient of friction of .2. What net force is necessary to accelerate it

Physics
1 answer:
8_murik_8 [283]3 years ago
3 0

Answer:

Explanation:

Idk

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In 2-4 sentences, summarize what you know about EM waves.
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Answer:

In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.

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Look at your data. With three foods, Flock v
wolverine [178]

Answer:the first one was x

the second one is y

Explanation:

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3 years ago
what is the specific heat capacity of silver metal if 55.00g of the absored 47.3 calories of heat and temperature rise 15.°c​
igor_vitrenko [27]

Answer:

0.240 J/(g^{\circ}C)

Explanation:

When an amount of energy Q is supplied to a sample of substance of mass m, the temperature of the substance increases by \Delta T according to the equation

Q=mC_s \Delta T

where

C_s is the specific heat capacity of the substance

In this problem, we have:

m = 55.0 g is the mass of the sample of silver

Q = 47.3 \cdot 4.184 = 197.9 J is the amount of energy supplied to the sample

\Delta T = 15^{\circ}C is the change in temperature of the sample

Solving the equation for C_s, we find the specific heat capacity of silver:

C_s = \frac{Q}{m \Delta T}=\frac{197.9}{(55.0)(15)}=0.240 J/(g^{\circ}C)

3 0
4 years ago
Scientific investigations
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I don’t know what you are trying to ask complete my but here are the steps to a scientific investigation i hope this helps you

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The unit of length most suitable for measuring the thickness of a cell phone is a
Elis [28]

centimeter or millimeter.

Explanation:

The unit of length most suitable for measuring the thickness of a cell phone is centimeter or millimeter.

Length refers to how long a material is.

  • There are different units of length.
  • Smaller units that are microscopic are used to measure length dimensions that are very small
  • For example, nanometre is used to express microscopic length values.
  • Centimeters and millimeters are used for small dimensions that we can easily see.
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Learn more:

Length brainly.com/question/13035995

#learnwithBrainly

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