All categories

3 years ago

Why do predator repeatedly avoid prey that is red in color?

Physics

1 answer:

madreJ [45]3 years ago

8 0

Answer:

Because the prey has a more probability of being poisonous.

Explanation:

You might be interested in

Derive an expression for the energy needed to launch an object from the surface of Earth to a height h above the surface.Ignorin

Sergio [31]

Answer:

Explanation:

Potential energy on the surface of the earth

= - GMm/ R

Potential at height h

= - GMm/ (R+h)

Potential difference

= GMm/ R - GMm/ (R+h)

= GMm ( 1/R - 1/ R+h )

= GMmh / R (R +h)

This will be the energy needed to launch an object from the surface of Earth to a height h above the surface.

Extra energy is needed to get the same object into orbit at height h

= Kinetic energy of the orbiting object at height h

= 1/2 x potential energy at height h

= 1/2 x GMm / ( R + h)

8 0

4 years ago

What type of simple machine is used to raise a flag on a flag pole?. . . . A.. wheel and axle. . . B.. lever. . . C.. pulley. .

Jlenok [28]

The answer to this question is C.pulley

5 0

4 years ago

Read 2 more answers

What are two things needed for acceleration

Liula [17]

Answer:

Velocity and Time

Explanation:

I googled it-

5 0

3 years ago

In what ways is body fat important to good health

katrin [286]

Well body fat helps regulate heat in your body, also it's a energy reserve when you've used all other sources. Long distance swimmers build up healthy fat (Avocado and sorts) for energy after they use their current circulating energy.

7 0

3 years ago

Read 2 more answers

A bungee jumper jumps from a tall bridge that is 60m above a flat, dry creek bed. She is carrying an audio generator that emits

dolphi86 [110]

Answer:

Explanation:

The original frequency of sound f₀

The apparent frequency of sound fa

For apparent frequency the formula is

fa = $f_0\times\frac{V+v}{V-v }$ , v is velocity of jumper which increases as he goes down .

Beat frequency

= fa - f₀

= $f_0\times(\frac{V+v}{V-v }-1)$

= $f_0\times(\frac{2v}{V-v })$

since v is very small in comparison to V , velocity of sound , in the denominator , v can be neglected.

beat frequency = $f_0\times(\frac{2v}{V })$

v , the velocity of jumper will go on increasing as long as net force on the jumper is positive or

mg > kx where x is extension in the cord and k is its force constant . Below this point kx or restoring force becomes more than weight of the jumper and then net force on the jumper directs upwards. At this point beat frequency becomes maximum.

6 0

3 years ago