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anastassius [24]
3 years ago
10

What is one example of thermal energy

Physics
1 answer:
hoa [83]3 years ago
5 0

Answer:

Solar Energy

Explanation:

Solar radiation (a form of an object) heats up our atmosphere, that's why heat is felt on earth.

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. Two charges, Q1 and Q2 , are separated by a certain distance R. If the magnitudes of the charges are halved, and their separat
densk [106]

Answer: Magnitude of electrical force stays the same.

Explanation:

Equation:

F_{e} =k\frac{Q_{1}Qx_{2}  }{r^{2} }

Since the magnitude of each charge is halved.

and

the separation is halved.

F_{e} =k\frac{(.5Q_{1}*.5Q_{2}  }{(.5r)^{2} }

F_{e} =k\frac{.25*Q_{1}Qx_{2}  }{.25*r^{2} }

Cancel out .25 on the numerator and denominator. Leaving the original equation.

6 0
3 years ago
A spiral spring of natural length 20.00cm has a scale
iVinArrow [24]

The  mass of the scale pan : 0.11 kg

<h3>Further explanation</h3>

Given

A spiral spring's length = 20 cm

mass 50 g ⇒ the length = 22 cm

mass 70 g ⇒ the length = 22.25 cm

Required

the  mass of the scale pan

Solution

Hooke's Law :

\tt F=k.\Delta x

The spring constant (k) :

\tt k=\dfrac{\Delta F}{\Delta x}=\dfrac{g.(70-50)}{22.25-22}=\dfrac{g.20}{0.25}=g.80~g/cm=10~m/s^2\times  8~kg/m=80~N/m

mass of the scale pan=m(for 50 g mass) :

\tt (m+0.05).g=80\times (0.22-0.20)\\\\m=0.11~kg

4 0
3 years ago
Do you believe that
LUCKY_DIMON [66]

Answer:

In my opinion, I think we do change when people come to our lives because the way we feel around people makes us feel a certain way around all people in our lives in a good way. They can change our lives by being there and helping us physically and mentally. We do have the choice to follow what someone is trying to change us. Example if we have a problem like addiction, we can choose to get help from anyone or choose not to. Traumas can affect us, but we need to seek help to not fear those problems anymore, thats why people who care about us really want us to change our way of health, addictions, and mental health. For me, as a child my dad was deported because he got a dui and decided for as punishment to be deported or to have a life sentence in the U.S. My mom suffered addiction to drugs and alcohol. I lived with my grandparents for almost my whole childhood untill the age of 9. Then my aunt got engaged and my new uncle decided to take us in because DC.S foound out that me and my other sibling weren't in school at all. Like we never attended school. So we were going to be seperated and taken for adoption untill my uncle had the heart to adopt us and here I am today. He gave us a better life because I finally experienced school,clothes, food, and a safer place to live. All the things I went through even abuse. He changed my life and we changed his. He cares about us, we helped him quit drinking, and that impacts him a lot to open up his heart and quit drinking.

Explanation:

6 0
2 years ago
As light slows down, it bends or refracts. The index of refraction helps predict the amount of bending. How are the speed of lig
Eduardwww [97]
When light changes the medium it travels through it also changes speed. The speed in medium is given by formula:
v_{medium} = \frac{c}{ n_{medium} }

Rearranging formual gives:
n_{medium} = \frac{c}{ v_{medium} }

From this formula we can make conclusion that index of refraction is inversely proportional to speed of light in medium. This means that greater speed gives smaller index of refraction.
8 0
4 years ago
Read 2 more answers
What would the single sample Cohen's d value be if the difference in sample mean and hypothesized mean was 16, and the sample st
ELEN [110]

Answer:

Explanation:

To calculate an effect size, called Cohen's d , for the one-sample t-test you need to divide the mean difference by the standard deviation of the difference, as shown below. Note that, here: sd(x-mu) = sd(x) . μ is the theoretical mean against which the mean of our sample is compared (default value is mu = 0).

6 0
3 years ago
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