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3 years ago

5

The graph represents the reaction 3H2 + N2 2NH3 as it reaches equilibrium. Based on the graph, which two statements about this r

eaction are true?
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1 answer:

nata0808 [166]3 years ago

8 0

Answer:A and C

Explanation: I took the test lol

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A ball is dropped from the rest from a high window of a tall building and called for 4 seconds. Neglecting air resistance, the f

diamong [38]

Answer:

-39.2m/s

Explanation:

Given that :

t = 4secs

g = -9.8m/s^2

v = ?

u = 0m/s ( since it was at rest )

V = u +at............. 1

Where v is the final velocity

a = -g = -9.8m/s^2 since the ball was dropped from a height which will eventually make it move against gravity

t = 4secs

Substitute the values into 1

v = 0 - 9.8×4

v = -39.2m/s

3 0

3 years ago

What is the study of economics?

ziro4ka [17]

Answer:

Economics is the study of how societies use scarce resources to produce valuable commodities and distribute them among different people.

Explanation:

The ultimate goal of economic science is to improve the living conditions of people in their everyday lives.

Hope this helps!

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3 years ago

Read 2 more answers

Use the factorization to find the values of x for

TiliK225 [7]

Answer:

Nah son

Explanation:

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4 years ago

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The deepest point known in any of the earth's oceans is in the marianas trench, 10.92 km deep. assuming water to be incompressib

Jlenok [28]

The solution for the problem is:

The pressure of a column of fluid = rho g h

Where: rho = density,

g = 9.81m/s/s, and

h = depth

at 10.92km:

P = 1027kg * 9.81m/s/s * 10920 m

= 1027 kg x 107125.2

= 1.10 x 10^8 Pa (the MKS unit of pressure)

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4 years ago

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A 50 kg pitcher throws a baseball with a mass of 0.15 kg. If the ball is thrown with a positive velocity of 35 m/s and there is

Andreas93 [3]

The velocity of the pitcher is <u>0.105 m/s</u> in a direction opposite to the velocity of the ball.

When no external force acts on a system, the total momentum of the system is conserved. The total initial momentum of the system is equal to the total final momentum of the system.

The pitcher and the ball are initially at rest, therefore, the total initial momentum of the system is zero.

Since no external forces act on the system comprising of pitcher and the ball, the total final momentum of the system is also equal to zero.

If the mass of the pitcher is mp and its speed is vp, the mass of the ball is mb and the ball's speed is vb, then the final momentum of the system of pitcher and the ball is given by,

$p=m_pv_p+m_bv_b=0$

Therefore,

$v_p=-\frac{m_b}{m_p} v_p$

Substituet 0.15 kg for mb, 50 kg for mp and 35 m/s for vb.

$v_p=-\frac{m_b}{m_p} v_p=-\frac{0.15 kg}{50 kg} (35m/s)=-0.105 m/s$

The pitcher has a velocity <u> 0.105 m/s</u> opposite to the direction of the velocity of the ball.

8 0

3 years ago