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2 years ago

Which condition must be met in order for an equation to be balanced?

Physics

1 answer:

vitfil [10]2 years ago

4 0

Answer:

There must be an equal amount of each element on both sides of the equation. Hope this helps and please marks as the brainliest.

Explanation:

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Calculate the acceleration due to gravity on the Moon. The Moon’s radius is 1.74 x 106 m and its mass is 7.35 x 1022 kg.

GarryVolchara [31]

G=?
m=7.35*10^22kg
r=1.74*10^6m
G=6.67*10^-11nm^2kg^-2
you can use the formula
g=Gm/r^2

5 0

3 years ago

Two mass m1 and m2 lie on a frictionless surface. Between the two masses is a compressed spring, with spring constant k. The sys

max2010maxim [7]

Answer:

The spring was compressed the following amount:

$\Delta x=\sqrt{ \frac{m_1\,v_1^2+ m_2\,v_2^2}{k} }$

Explanation:

Use conservation of energy between initial and final state, considering that the surface id frictionless, and there is no loss in thermal energy due to friction. the total initial energy is the potential energy of the compressed spring (by an amount $\Delta x$ ), and the total final energy is the addition of the kinetic energies of both masses:

$E_i=\frac{1}{2} k\,(\Delta x)^2\\\\E_f=\frac{1}{2} m_1\,v_1^2+\frac{1}{2} m_2\,v_2^2$

$E_i=E_f\\$

$\frac{1}{2} k\,(\Delta x)^2=\frac{1}{2} m_1\,v_1^2+\frac{1}{2} m_2\,v_2^2\\k\,(\Delta x)^2=m_1\,v_1^2+ m_2\,v_2^2\\(\Delta x)^2=\frac{m_1\,v_1^2+ m_2\,v_2^2}{k} \\\Delta x=\sqrt{ \frac{m_1\,v_1^2+ m_2\,v_2^2}{k} }$

8 0

2 years ago

The sine ratio is the ratio formed by the hypotenuse over the side opposite the acute angle. True False

Paha777 [63]

Answer:False

Explanation:

The given statement is false

because the sine ratio is the ratio formed by the side opposite the acute angle to the hypotenuse

$\sin (acute\ angle)=\frac{Perpendicular}{hypotenuse}$

4 0

2 years ago

Preschool girls and boys do not differ in the amount of muscle they have<br> 1) True<br> 2) False

Marina86 [1]

Explanation:

False...............

3 0

3 years ago

Need help with this! <br><br> just scienceeeeeee

LiRa [457]

Answer:

7) λ = 0.5 m, 8) f = 4.8 10¹⁴ Hz

Explanation:

The speed of an electromagnetic wave is

c = λ f

where c is the speed of light in vacuum c = 3 10⁸ m / s

7) indicate the frequency f = 6.0 10⁸ Hz

we do not know the wavelength

λ = c / f

we calculate

λ = 3 10⁸ / 6.0 10⁸

λ = 0.5 m

8) indicate the wavelength λ = 6.25 10-7 m

we do not know the frequency

f = c / λ

we calculate

f = 3 10⁸ / 6.25 10⁻⁷

f = 0.48 10¹⁵ Hz

f = 4.8 10¹⁴ Hz

8 0

2 years ago