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nataly862011 [7]

3 years ago

10

Which force in nature is believed to have formed second?

1 answer:

elixir [45]3 years ago

6 0

In physics, there are four fundamental forces of nature – Gravitational, Electromagnetic, Weak Nuclear, and Strong Nuclear Force. All four fundamental forces have been interacting since the beginning of time. To answer your question “<span>All forces formed at the same time “.</span>

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The definition of parallel lines requires the terms line and plane while the definition of perpendicular lines requires the unde

givi [52]

Answer with explanation:

Complete question is provided in the attachment below.

There are 3 undefined term in geometry :1) A Point 2) A line 3) A Plane.

When two lines are parallel they never meet , so the requirement to define them is lines and a plane on which they lie.

While when two lines are perpendicular , they intersect each other at a point by making a right angle between them.

So it required lines and a point to define it.

8 0

4 years ago

The Greeks noticed that some stars were larger and moved haphazardly. What were these stars?

Varvara68 [4.7K]

Answer:

i guess it's shooting star

5 0

3 years ago

An automobile has a mass of 1200 kg. What is its kinetic energy, in kJ, relative to the road when traveling at a velocity of 50

nikdorinn [45]

Answer:

K.E = 463.04 k J

P = 23.14 Watt

Explanation:

given,

mass of automobile = 1200 kg

velocity = 50 km/h

= 50 × 0.278

= 13.9 m/s

kinetic energy = $\dfrac{1}{2}mv^2$

= $\dfrac{1}{2}\times 1200 \times 13.9^2$

K.E = 115.93 k J

vehicle accelerated to velocity = 100 km/h

= 100 × 0.2778

= 27.78 m/s

kinetic energy = $\dfrac{1}{2}mv^2$

= $\dfrac{1}{2}\times 1200 \times 27.78^2$

K.E = 463.04 k J

work done = change in kinetic energy

= 463.04 - 115.93

= 347.11 J

Power = $\dfrac{work\ done}{time}$

Power = $\dfrac{347.11}{15}$

P = 23.14 Watt

7 0

3 years ago

What two elements are used with other metals to lower their melting points?

vampirchik [111]

Answer:

C) antimony and bismuth

Explanation:

6 0

3 years ago

Read 2 more answers

Why is Venus sometimes called Earth’s twin?

monitta

Answer:

B.

Venus is the same size and density.

Explanation:

It is becuase venus has the same size and density as earth

8 0

3 years ago

Read 2 more answers