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Anit [1.1K]
3 years ago
6

How to calculate kinetic energy ? (physics/physical science)

Physics
1 answer:
Vladimir79 [104]3 years ago
7 0
Kinetic energy is equal to half of an objects mass multiplied by the velocity squared.
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Which physical phenomena is responsible for the earth’s sky appearing blue? scattering reflection dispersion refraction
klio [65]

Answer:  Scattering reflection

Sunlight reaches earth's atmosphere and is scattered in all directions by all the gasses and particles in the air. Blue light is seen more than others because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

Explanation:

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3 years ago
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What is an enzyme and what is it from
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Enzymes help break down food that we consume. They are found in the stomach or small intestine.

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A stone is dropped from a cliff. after it has fallen 10m what is the stones velocity
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The answer is 14,1421 m/s. :)
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3 years ago
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1.) What things signal the coming of spring?
olasank [31]

Answer:

In Explanation

Explanation:

  1. The signs of the coming of spring include firstly the sight of Robins. It is believed that the sight and singing of the Robins is considered arrival of spring by many in the US. Secondly, the winter is not yet over but the blooming of Daffodils first of all flowers is indication of the spring. As the air gets warmer the flowers bud and new leaves start growing on trees since the days also begin to get longer providing much warmth which also an indicator of the spring.
  2. Without the axial tilt of our Earth, firstly, the Sun would have remained above the equator (Equinox) forever but fortunately due to the tilt we get equinoxes twice a year and not forever. Moreover, the temperature and precipitation levels would not vary much and the equator would remain always warm and the poles always cold. Secondly, due to the tilt as the Earth orbits around the Sun and with changes in solstices we get variety of the seasons which would have been impossible otherwise.
7 0
3 years ago
What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the ca
Sunny_sXe [5.5K]

For a car that is pulled by a cable we can say that there are two forces on it

1. force of gravity downwards

2. tension force due to cable upwards

so here if upward force due to cable is more than the weight of the car then we have net upward force on the car

Due to this force the velocity of car will increase with time because here car is also moving upwards and we know that when net force will act in the direction of velocity of car then the velocity will always increase.

So here we can say that velocity of car will increase in this case

3 0
4 years ago
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