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Igoryamba
3 years ago
13

Why must you use temperature to specify how hot or cold something is?

Physics
2 answers:
podryga [215]3 years ago
7 0
At others time we need to k ow how hot or cold something is when we need to measure temperature correctly we need to use an instrument called a thermometer this measure temperature in degrees Celsius or degrees Fahrenheit
neonofarm [45]3 years ago
3 0

Explanation:

Well to come to think because using the terms hot and cold can be confusing

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Longitudinal, because the sound can only travel at one direction
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Racing greyhounds are capable of rounding corners at very high speeds. A typical greyhound track has turns that are 45 m diamete
Readme [11.4K]

Answer:

In m/s^2:

a=11.3778 m/s^2

In units of g:

a=1.161 g

Explanation:

Since the racing greyhounds are capable of rounding corners at very high speed so we are going use the following formula of acceleration for circular paths.

a=\frac{v^2}{r}

where:

v is the speed

r is the radius

Now,

a=\frac{16^2}{45/2}\\ a=11.3778 m/s^2

In g units:

a=\frac{11.3778\ g}{9.8}\\ a=1.161\ g

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3 years ago
A DNA macromolecule is made up of two strands of DNA, which are connected to form a DNA double helix. The bonds between
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Answer:

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6 0
3 years ago
Physics question help
S_A_V [24]

Answer:

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Explanation:

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8 0
2 years ago
Which statements are true concerning Newton's law of gravitation? The gravitational force is related to the mass of each object.
OLEGan [10]

Answer:

The gravitational force is related to the mass of each object.

The gravitational force is an attractive force.

Explanation:

Gravitational force is a long range force of attraction between any two masses.

Mathematically given as :

F=G.\frac{m_1.m_2}{r^2}

where:

m_1 & m_2 are the masses

r= distance between the center of mass of the two objects.

G= gravitational constant = 6.67\times 10^{-11} m^3.kg^{-1}.s^{-2}

From the above relation of eq. (1) it is clear that,

Gravitational force is inversely proportional to the square of the distance and directly proportional to the masses.

The mass of an object is independent of its size due to the fact that density may vary for different objects.

The force of gravity varies with height as:

\frac{g}{g_x} =(\frac{r_x}{r} )^2

where:

g=9.8\,m.s^{-2}

g_x= gravity at height r_x of the center of mass of the object from the center of mass of the earth.

and we know that force:

F=m\times g

where: m= mass of the object.

5 0
3 years ago
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