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SCORPION-xisa [38]
3 years ago
14

CAN SOME PLZ HELP I REALY NEED THIS PLZ!!!!

Physics
1 answer:
mamaluj [8]3 years ago
7 0

Answer:

you won't find then

Explanation:

every test is new for each year

You might be interested in
Pleaseee help as soon as possible!!
Tatiana [17]

Answer:

its right 2000 meters ask your teacher

Explanation:

5 0
3 years ago
A woman drives a golf ball off the tee to a speed of 28 m/s. The mass of the ball is 45 g and tIf the angle of the flight was in
Novay_Z [31]

Answer:

456

Explanation:

impulse = Force x (time of contact)

this isn't really much information but hope this helps !: )

8 0
3 years ago
You are designing a new piece of fishing equipment that will allow you to catch a fish from the surface. You know that water ref
OleMash [197]

Answer:

Law of refraction

Explanation:

An experiment to analyze the refraction of light in water can easily be performed with a laser pointer and protractor.

We throw the fishing rod line into the water, place the protractor at the point where the line touches the water and use the direction of the line for the direction of the laser pointer (on), the laser is visible by the reflection on the particles in the air.

The vertical line is called Normal and all angles must be measured with respect to this reference in optics.

Having these angles and the refractive index of water we can use the law of refraction

         n₁ sin θ₁  = n₂ sin θ₂

         θ₂ = sin^{-1} ( \frac{n_1}{n_2} \ sin \ \theta_1 )

we can repeat several times to analyze several different input points (different angles) and to decrease the errors in the measurements.

the refractive index of air is n1 = 1 and n2= 1.33  (water)

4 0
3 years ago
A 16 kg block is dragged over a rough, hor-
Arlecino [84]

Explanation:

So what's the question here?

3 0
3 years ago
There has long been an interest in using the vast quantities of thermal energy in the oceans to run heat engines. A heat engine
adell [148]

Answer:

Explanation:

The maximum efficient power plant will be the plant based on carnot cycle whose efficiency is given by the following formula

Efficiency = (T₁ - T₂)  / T₁

T₁ is temperature of hot reservoir and T₂ is temperature of cold reservoir.

Putting the given values

efficiency of power plant = (35 - 5) / (273 + 35 )

= 30 / 308

= .097

= 9.7 %

3 0
4 years ago
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