2 years ago

What is mechanics? Give name of its two sub branch?

Physics

1 answer:

kap26 [50]2 years ago

3 0

Answer:

Mechanics is the branch of physics which deals with the motion of objects its causes and effects.

Sub branches

kinematics(deals with motion of objects without studying the cause of its motion)

dynamic(deals with the motion and cause of motion of objects)

Explanation:

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A water gun fires 5 squirts per second. The speed of the squirts is 15 m/s.

stira [4]

Answer: 3.75 m

Explanation:

5 squirts in 1 second

So, 1 squirt in 1/5 second which is 0.2 second.

The difference in timing of two consecutive squirt is 0.2 second, so

time (t) = 0.2 s.

speed (s) = 15 m/s

Distance of separation (d) = ?

Now, formula for distance is

d = s × t

d = 15 × 0.2

d = 3.75 m

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3 years ago

As a result of photosynthesis is the production of sugar molecules known as what?

Bezzdna [24]

Answer:

Glucose

Explanation:

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3 years ago

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The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain riv

kow [346]

Answer:

1.122 m/s

Explanation:

So usually a river with a speed of 1 meters per second can transport particle that weighs:

$1^6 = 1 kg$

If the particle is twice as massive as usual, then its weights would be 1 * 2 = 2kg

This means the river must be flowing at a speed of

$2^{\frac{1}{6}} = 1.122 m/s$

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3 years ago

Newton observed the action of a prism on white light and on red light. Because he (did or did not) control the event, this inves

natulia [17]

Newton observed the action of a prism on the white light and on red light. Because he did not control the event, this investigation of light was an observational study.

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3 years ago

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A container is filled to a depth of 19.0 cm with water. On top of the water floats a 31.0-cm-thick layer of oil with specific gr

IceJOKER [234]

Answer:

Absolute pressure of the oil will be 102822.8 Pa

Explanation:

We have given height h = 31 cm = 0.31 m

Acceleration due to gravity $g=9.8m/sec^2$

Specific gravity of oil = 0.600

So density of oil $\rho =0.6\times 1000=600kg/m^3$

We know that absolute pressure is given by $P=P_0+\rho gh$ , here $P_0=1.01\times 10^5Pa$

So absolute pressure will be equal to $P=1.01\times 10^5+600\times 9.8\times 0.31=102822.8Pa$

So absolute pressure of the oil will be 102822.8 Pa

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3 years ago