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4 years ago

The velocity of an object includes its speed and____?

Physics

1 answer:

mr_godi [17]4 years ago

6 0

it includes an objects speed and direction

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On August 15, 2005, a spacecraft in a 190-km, 52 °-inclination circular% parking orbit around the earth departed on a mission to

Aloiza [94]

Answer:

25%

Explanation:

5 0

3 years ago

Show that atmosphere exerts pressure.

Maru [420]

Because gas particles in the air like particles of all fluids are constantly moving and bumping into things, they exert pressure. The pressure exerted by the air in the atmosphere is greater close to Earth's surface and decreases as you go higher above the surface.

<u>Explanation</u>:

Fill roughly one-third of a cup with water. Then, cover the mouth of the cup completely with a flat, hard cardboard. Using your hand to keep it in place, turn the cup upside down. When you remove your hand, the the cardboard stays in place.

One would expect that due to gravity, the water will fall, and even the cardboard will. However, it does not, which means that something must be applying an upward force on the cardboard. This is nothing other than air pressure, which applies a force across the surface of the cardboard in an upward direction.

Thus we can demonstrate that air exerts pressure, because otherwise, the water would have fallen.

3 0

3 years ago

Answer please. I will mark brainiest if right.

Alexandra [31]

Answer:

In this order from 1-10: F, F, F, T, T, F, F, T, T, F

Explanation:

Planets are named almost entirely from Roman gods and goddesses,

The sun is not the center of the universe, just the center of the solar system,

The solar system is believed to be formed in a gaseous nebula,

Planets and stars did form when matter clumped together with gravity,

Our solar system is believed to have 5 dwarf planets,

Mercury is the closest planet to the sun,

Jupiter has the greatest size and diameter,

Orbits of planets are more elliptical, meaning it's more of an oval shape,

Our sun is BY FAR not the only star with planets around it.

3 0

3 years ago

A model train moves 18.3m in 122s. What is the train's average speed?

Kisachek [45]

Answer:0.15 m/sec

Explanation:

To calculate speed you use distance over speed

18.3/122= 0.15

5 0

3 years ago

In what speed does an object fall, if after 10 seconds it hits the surface of Earth?

Maru [420]

Answer:

98m/s

Explanation:

Given parameters:

Time = 10s

Unknown:

Final speed = ?

Solution:

To solve this problem, we use the expression below;

v = u + gt

v is the final velocity

u is the initial velocity = 0m/s

g is the acceleration due to gravity = 9.8m/s²

t is the time

so;

v = 0 + 9.8 x 10 = 98m/s

8 0

3 years ago