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Ann [662]
3 years ago
5

Una persona de 80 kilogramos de masa se encuentra parada sobre una silla de 3 kilogramos de masa Cuál es la presión que ejerce e

n cada pata de la Silla sobre la superficie del suelo y ésta Tiene 3 centímetros de diámetro supón que la Silla tiene cuatro patas y que la presión se distribuye de manera equitativa
​
Physics
1 answer:
MariettaO [177]3 years ago
7 0

Answer:

de 20 miligramos cada pata dividiendo 80÷4=20

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How much energy is required to vaporize 100g of water at its boiling point?
Karolina [17]
Latent heat fusion(l)=540

∆t= temp(100-0)

Q=ml+ms∆T

Q=500.100+100.1.100
Q=64000 cal


5 0
3 years ago
Write the first equation of motion. Under what condition(s) is this equation valid?​
Zepler [3.9K]

Explanation:

The first equation of motion in kinematics is given by :

v=u+at .....(1)

u is initial speed

a is acceleration

v is final speed

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Equation (1) is valid when the object is moving with constant acceleration. This equation gives relation between velocity and time.

3 0
3 years ago
You use a very sensitive instrument to measure the speed of sound in your front yard in December. You repeat the test in August
frutty [35]
<h2>Answer: faster </h2>

The speed of sound varies depending on the medium through which the sound waves travel. In addition, it varies with changes in the temperature of the medium. This is because an <u>increase in temperature means that the frequency of interactions between the particles that transport the vibration increases</u>, hence this increase in activity increases the speed. That is why the speed of sound in a gas is not constant, but depends on the temperature.

So, if we want <u>the speed of sound in a gas to increase</u>, the<u> temperature</u> of that gas must <u>increase</u>, as well.

For example, the higher the air temperature, the greater the velocity of propagation. Experiments have shown that the speed of sound in air increases 0.6m/s for every 1\°C increase in temperature.

Therefore:

<h2>The speed of sound will be faster than in December</h2>
6 0
4 years ago
Read 2 more answers
8. What variables shift both the long-run and short-run aggregate-supply curves?
vfiekz [6]

Variables shift both the long-run and short-run aggregate-supply curves are productivity, labor Wage Costs and taxes and other costs.

<h3>What is aggregate-supply?</h3>

The entire quantity of goods and services that enterprises in a national economy intend to sell during a certain time period is known as aggregate supply

Variables shift both the long-run and short-run aggregate-supply curves are ;

1. Productivity

2. Labor Wage Costs.

3. Taxes and other costs -

4. Material Prices.

5. Size of labor force.

6. Stock of Capital.

Hence, variables shift both the long-run and short-run aggregate-supply curves are productivity, labor Wage Costs and taxes and other costs.

To learn more about the aggregate-supply, refer:

brainly.com/question/16419230

#SPJ1

4 0
2 years ago
batman recharges his bat taser with 2500 joules of energy in 15 minutes. how much power does it draw from the mains
Yuliya22 [10]
The power P in watts (W) is equal to the energy E in joules (J), divided by the time period t in seconds (s):
P(W) = E(J) / t(s)

2.78 Watts
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