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Ugo [173]
2 years ago
8

If a football player hits the ball with a force of 50 N, determine the reaction force.

Physics
1 answer:
mel-nik [20]2 years ago
4 0

Answer: 60

Explanation: if u hit it it will have impact and the impact added 10n

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After which action would the concentration of a solution remain constant?(1 point)
Alika [10]

Answer:

C. Evaporating water from the container.

Explanation:

The concentration of solution changes when solvent or solute are added/removed from a solution.

5 0
3 years ago
Two asteroids identical to those above collide at right angles and stick together; i.e, their initial velocities were perpendicu
11111nata11111 [884]

Answer:

velocity = 62.89 m/s  in 58 degree measured from the x-axis

Explanation:

Relevant information:

Before the collision, asteroid A of mass 1,000 kg moved at 100 m/s, and asteroid B of mass 2,000 kg moved at 80 m/s.

Two asteroids moving with velocities collide at right angles and stick together. Asteroid A initially moving to right direction and asteroid B initially move in the upward direction.

Before collision Momentum of A = 1000 x 100 = $ 10^5$ kg - m/s in the right direction.

Before collision Momentum of B = 2000 x 80 = 1.6 x $ 10^5$  kg - m/s in upward direction.

Mass of System of after collision = 1000 + 2000 = 3000 kg

Now applying the Momentum Conservation, we get

Initial momentum in right direction = final momentum in right direction = $ 10^5$

And, Initial momentum in upward direction = Final momentum in upward direction = 1.6 x $ 10^5$

So, $ V_x = \frac{10^5}{3000} $  = $ \frac{100}{3} $  m/s

and $ V_y=\frac{160}{3}$  m/s

Therefore, velocity is = $ \sqrt{V_x^2 + V_y^2} $

                                   = $ \sqrt{(\frac{100}{3})^2 + (\frac{160}{3})^2} $

                                   = 62.89 m/s

And direction is

tan θ = $ \frac{V_y}{V_x}$     = 1.6

therefore, $ \theta = \tan^{-1}1.6 $

                   = $ 58 ^{\circ}$  from x-axis

4 0
3 years ago
True or false The cardiovascular system includes the heart and blood vessels.
love history [14]
The answer to this question is false
5 0
3 years ago
Read 2 more answers
[TRUE/FALSE] If an object is moving at constant velocity it must be in equilibrium.
DENIUS [597]

Answer:

yes

Explanation:

objects with constant velocity also have zero net external force. this means the forces on the object are balanced. this mean they are in equilibrium

4 0
3 years ago
How long does it take a glass of salt water to freeze than a glass of fresh water
max2010maxim [7]
A glass of salt water will take a slightly longer time & slightly lower temperature (28 F as compared to 32 F for fresh water)  to freeze than a glass of fresh water. 

Hope this helps!
6 0
3 years ago
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