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MrRissso [65]
3 years ago
15

Whats the units for velocity​

Physics
1 answer:
jeka57 [31]3 years ago
4 0
The units of velocity is :
meter per second (m/s)
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Mercury has a density of 13.6 g/cm , whereas the density of water is 1.00 g/cm. The pressure of the atmosphere is high enough to
kenny6666 [7]

10.3

Explanation:

Step 1:

The pressure exerted by any liquid column of height, h density d is given by the formula P = h * d * g

Step 2:

It is given that one atmosphere pressure pushes up 76.0 cm of mercury, we need to calculate the level of water that will be pushed by the same pressure.

Step 3:

Since the pressure pushing up mercury and water is the same

h_{mercury} * d_{mercury} * g = h_{water} * d_{water} * g

 h_{water} = \frac{h_{mercury}*d_{mercury} }{d_{water}}  = (13.6 g/cm * 76 cm)/1 g/cm = 1033.6 cm

Step 4:

Now we need to express the answer in meters.

1 m = 100 cm.

1033.6 cm = 10.336 m

This can be rounded off to 10.3 m

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3 years ago
1. Should water be classified as renewable or nonrenewable? Explain your reasoning.
Alinara [238K]

Answer:

Renewable Resource Hydropower is renewed by the Earth's hydrologic cycle. Water has also been considered renewable, but overpumping of groundwater is depleting aquifers, and pollution threatens the use of many water resources, showing that the consequences of resource use are not always simple depletion.For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf. inexpensive compared to coal ... o Two types of coal—low rank (pollutes more), and high rank.

Explanation:

4 0
2 years ago
The formation of the solar system from a huge cloud of dust and gases is called the.
mariarad [96]
The formation of the solar system from a huge cloud of dust and gases is called the solar nebula.
5 0
2 years ago
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An airplane traveling at half the speed of sound emits a sound of frequency 5.84 kHz. (a) At what frequency does a stationary li
sergejj [24]

Answer:

Stationary listener frequency = 77.68 kHz

Explanation:

Given:

Speed of airplane = 344/2 = 172 m/s

Sound of frequency = 5.84 kHz

Computation:

f0 = fs[(v+v0)/(v-vs)]

f0 = 5.84[(344+0)/(344-172)]

f0 = 5.84[(344)/172]

Stationary listener frequency = 77.68 kHz

7 0
2 years ago
What happen to the weight of a body when it is falling freely under the action of gravity?
mr Goodwill [35]

Answer:

Explanation:

where W-weight, m-mass of the object and g-acceleration produced due to the earth's gravity. ... This happens because the normal reaction force exerted on the object in the lift is equal to zero, and normal force equals to mg, which in turn equals the weight of the object.

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