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3 years ago

List several examples of applied force, normal force, and friction that you’ve observed in your life.

Physics

1 answer:

grandymaker [24]3 years ago

3 0

applied forces would be push for example.

normal forces would seem to be a force such as gravity.

friction for example when you try to slide on carpet but the fabric or whatever its made of stops you.

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Please help, and show steps. Thank you very much!

Vikentia [17]

V = 8 * 10^2 km/h = 800km/h
S= 1,8* 10^3 km = 1800km
t = ?
v = S/t
t = S/v
t = 1800km/ 800km/h
t ≈ 2,25h (135min)

6 0

3 years ago

Please explain the method of making electricity from non renewable sources like coal?

Leno4ka [110]

The coal is urned to heat up water. this produces steam. the steam turns a turbine that turns a generator which provided energy yhat can be transferred into electrisity

7 0

3 years ago

45. What is the wovelength of a 30. Hertz periodic

Leviafan [203]

The wavelength is 2m.

Hence, Option c) 2m is the correct answer

Given that;

Frequency; $f = 30Hz$

Speed; $v = 60m/s$

Wavelength; $\lambda =\ ?$

using the expression for the relations between wavelength, frequency and speed of wave:

$\lambda = \frac{v}{f}$

Where $\lambda$ is wavelength, f is frequency and v is speed.

We substitute our given values into the equation

$\lambda = \frac{60m/s}{30Hz}\\\\\lambda = \frac{60m/s}{30s^{-1}}\\\\\lambda = 2m$

The wavelength is 2m.

Hence, Option c) 2m is the correct answer.

To learn more about wavelength, click here: brainly.com/question/1347107

4 0

2 years ago

Which three of the following are characteristics of ionic bonding?

Lyrx [107]

Gains at least one nutrient

7 0

3 years ago

ASAP

scoundrel [369]

Answer:

Explanation:

Hooke's law! F(spring)=-kx

There's no tricky square law here. The spring constant doesn't change, only x (distance stretched) changes. Therefore, if distance is halved, Force will be halved.

5 0

3 years ago