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ddd [48]
3 years ago
14

When would it be easier for a bear to catch a fish: as the fish swims or as its in the air. Explain with how light travels in th

e air and water.
Points: 40
Physics
1 answer:
r-ruslan [8.4K]3 years ago
8 0

Answer:

In the air

Explanation:

light in air flows in a straight direction while in water it curves far away from the object(refraction)thus the bear in the air will catch the fish easily because in water the fish is refracted thus the bear may catch its refracted image thinking it is the fish

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A visitor to the observation deck of a skyscraper manages to drop a penny over the edge. As the penny falls faster, the force du
pentagon [3]
If a coin is dropped at a relatively low altitude, it's acceleration remains constant. However, if the coin is dropped at a very high altitude, air resistance will have a significant effect. The initial acceleration of the coin will be the greatest. As it falls down, air resistance will counteract the weight of the coin. So, the acceleration will decrease. Although the acceleration decreases, the coin still accelerates, that is why it falls faster. When the air resistance fully counters the weight of the coin, the acceleration will become zero and the coin will fall at a constant speed (terminal velocity). So, the answer should be, The acceleration decreases until it reaches 0. The closest answer is.
a. The acceleration decreases.
8 0
3 years ago
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Hiw many times lager then a centimeter is a dekagram​
Digiron [165]

Answer: 1 000 times

Explanation: 1 000 centimetre is equal to 1 dekacemetre.

Using conversion will apply in converting every number.

6 0
3 years ago
The orbital motion of Earth around the Sun leads to an observable parallax effect on the nearest stars. For each star listed, ca
Murrr4er [49]

Answer:

Following are the answer to this question:

Explanation:

Formula:

D(PC) =\frac{1}{parallax}\\\\D(av)=D(PC) \times 20.626\ J

Calculating point A:

when the value is 0.38

\to 0.38 \toD(PC)= \frac{1}{0.38}\\\\

                   =2.632

\to D(a.v) = \frac{1}{0.38} \times 206265\\

               =542,802.6

Calculating point B:

when the value is 0.75

\to D(PC)=\frac{1}{0.75}

                =1.33

\to D(a.v) = \frac{1}{0.75} \times 206265\\

             =275,020

Calculating point C:

when the value is 0.28

\to D(PC)=\frac{1}{0.28}

                =3.571

\to D(a.v) = \frac{1}{0.28} \times 206265\\

               =736660.7

Calculating point D:

when the value is 0.42

\to D(PC)=\frac{1}{0.42}

                =2.38

\to D(a.v) = \frac{1}{0.42} \times 206265\\

               =490910.7

Calculating point E:

when the value is 0.31

\to D(PC)=\frac{1}{0.31}

                =3.226

\to D(a.v) = \frac{1}{0.31} \times 206265\\

               =665370.97

6 0
3 years ago
An electric generator converts kinetic energy into which kind of energy?
dem82 [27]

Answer:

Electrical Energy

Explanation:

An electric generator is a device that changes kinetic energy to electrical energy through electromagnetic induction. Electromagnetic induction is the process of generating electric current with a magnetic field. ... Because the coil is rotating in a magnetic field, electric current is generated in the wire.

8 0
4 years ago
Which is the best example of forces acting in the same direction
kotykmax [81]

Getting someone to help you push your car out of a snowdrift.  You both get on the same end of it and push in the same direction.  Another beautiful example is a Tug-o-War, where you might have 50 people (!) all exerting force on the rope in the same direction.

5 0
4 years ago
Read 2 more answers
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