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Nutka1998 [239]
2 years ago
9

What Is The frequency of an X Ray That had A Wavelength of 1.5* 10^-9

Physics
1 answer:
musickatia [10]2 years ago
7 0
Here I come and we wanna go home!!!
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The speed of light will change in which of the following situations?
zhannawk [14.2K]

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The light moves through glass, then air

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2 years ago
Two resistors, R1 and R2, are connected
marusya05 [52]

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18 ohms

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V = I(R1 + R2)

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2 years ago
I need help with this question how to solve it for Brass and Cooper
Ksenya-84 [330]

Take into account that density and relative density are given by:

\begin{gathered} \text{density}=\text{ mass/volume} \\ \text{relative density = density/density of water} \end{gathered}

Take into account that the volume associated to each of the given sustances in the table is determined by the Level Difference (because it is the change in the volume of the water of the recipient in which the substance is immersed).

The density of water in kg/m^3 is 1000 kg/m^3.

Due to the density must be given in kg/m^3, it is necessary to express the volumes of the table in m^3 and mass in kg, then, consider the following conversion factor:

1 m^3 = 1000000 ml

1 kg = 1000 g

Then, you obtain the following results:

Brass:

\begin{gathered} 53.2g\cdot\frac{1kg}{1000g}=0.0532kg \\ 6ml\cdot\frac{1m^3}{1000000ml}=0.000006m^3 \\ \text{density}=\frac{0.0532kg}{0.000006m^3}\approx8866.67\frac{kg}{m^3} \\ \text{relative density=}\frac{(\frac{8866.66kg}{m^3})}{(1000\frac{kg}{m^3})}\approx8.87 \end{gathered}

Cooper:

\begin{gathered} 57.4g=0.0574kg \\ 6ml=0.000006m^3 \\ \text{density}=\frac{0.0574kg}{0.000006m^3}\approx9566.67\frac{kg}{m^3} \\ \text{relative density=}\frac{\frac{9566.67kg}{m^3}}{1000kg}=9.57 \end{gathered}

3 0
1 year ago
Help:choose the correct statement plz​
alexira [117]

Answer:

Second one

Explanation:

Lying on the floor is something you can do with the least amount of energy

7 0
2 years ago
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What is a situation in which friction is helpful?
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When driving a car on the road
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3 years ago
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