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Leya [2.2K]
3 years ago
10

Air is composed of many gases, while water is composed of a pure substance. Which best compares air and water?

Physics
2 answers:
kumpel [21]3 years ago
6 0
B. Water is composed of 2 H atoms and one O atom
natta225 [31]3 years ago
4 0

Answer: c

Explanation:

C Air is a compound of two or more components that keep their own identifying properties, while water is composed of mixtures that combine to form a compound.

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Problem 3: A basketball player is running at 4.75 m/s toward the basket when he jumps into the air to dunk the ball. He maintain
LekaFEV [45]

Answer

given,

speed of the basketball player, v_x = 4.75 m/s

height of the jump = ?

a) initial vertical velocity = 0 m/s

   final vertical velocity = ?

       height, h = 0.75 m

 using equation of motion

   v² = u² +  2 g h

   v² = 0² +  2 x 9.8 x  0.75

   v² = 14.7

   v = 3.83 m/s

b) let horizontal distance= x m

 maximum height at time , t s

 time taken to reach maximum height

    t = \dfrac{3.83}{9.8}

         t = 0.39 s

    horizontal distance

             = v_x  × t

             = 4.75 × 0.39

             = 1.85 m

horizontal distance is equal to 1.85 m

8 0
3 years ago
How do I calculate speed, velocity, and acceleration? I need the formulas too
vodomira [7]
Speed is the secular unit, which means it only measures "how fast it goes."
speed= \frac{distance}{time}
Velocity is a victory unit, which means it measures "both how fast it goes AND the direction."
velocity= displacement/time
Acceleration is the change of velocity over time. 
acceleration =  \frac{change in velocity}{time}
5 0
3 years ago
A 2 kg ball is thrown down with 50J of energy from a height of 10m, what is its velocity before it strikes the ground (neglect a
pochemuha

Answer:

V=14

Explanation:

PE=KE

mgh=1/2mv^2

2(9.8)10=1/2(2)v^2

(radical) 196= (radical)v

V=14

7 0
3 years ago
An ant climbs at a steady speed up the side of its
lianna [129]

The weight of the ant is the force that acts on the anthill in the <u>downward direction</u> and at angle of 30° rom the vertical.

<u>Given the following data:</u>

  • Angle of inclination = 30.0°.

<h3>What is a free-body diagram?</h3>

In Science, a free-body diagram can be defined as a graphical illustration which is typically used to visualize moments, tension, and applied forces that are acting on an isolated or rigid body (object) while using arrows pointing in the direction of these forces.

In this scenario, the weight of the ant is the force that acts on the anthill in the <u>downward direction</u> and at angle of 30° rom the vertical.

Read more on free-body diagram here: brainly.com/question/18770265

8 0
2 years ago
HELP ME PLEASE :( PLEASEEEEEEEE
Whitepunk [10]

Answer:

b

Explanation:

4 0
3 years ago
Read 2 more answers
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