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2 years ago

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object P1 and P2 are in a straight line with the normal to a plane mirror.If P1 and P2 are 18m and 21m away from the mirror. Cal

culate 1)distance between P1 and it's image I1

1 answer:

Naya [18.7K]2 years ago

6 0

Answer:

Balls, balls balls balls balls balls, balls?

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8. The amount of water pressure you experience while swimm

Nana76 [90]

Answer: the area of the pool.

Explanation:

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3 years ago

Which list of elements is placed in order from least reactive to most reactive?

Bumek [7]

Answer:

A. Ar, Si, Mg, Na

Explanation:

ar is argon which is an inert gas. its in group 18. whole column is filled with inert gases.

na is sodium. very reactive. its in group 1. whole column is filled with very reactive elements

5 0

2 years ago

Define compound and list two examples.

Liono4ka [1.6K]

A compound is a substance that consists of two or more elements, which is chemically combined, meaning that it could only be split by chemical means.

Examples:-

- NaCl is salt, chemically combined of Sodium and Chloride.

- H2O is water, chemically combined of Hydrogen and oxygen.

8 0

3 years ago

Read 2 more answers

The elementary particle called a muon is unstable and decays in about 2.20μs2.20μs , as observed in its rest frame, into an elec

vredina [299]

Answer:

5.865 μs

Explanation:

t₀ = Time taken to decay a muon = 2.20 μs

c = Speed of Light in vacuum = 3×10⁸ m/s

v = Velocity of muon = 0.927 c

t = Lifetime observed

Time dilation

$t=\frac{t_0}{\sqrt{1-\frac{v^2}{c^2}}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{1-\frac{(0.927c)^2}{c^2}}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{1-0.927^2}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{\sqrt{0.140671}}\\\Rightarrow t=\frac{2.2\times 10^{-6}}{0.3750}\\\Rightarrow t=5.865\times 10^{-6}\ seconds$

∴Lifetime observed for muons approaching at 0.927 the speed of light is 5.865 μs

3 0

3 years ago

A laboratory experiment produces a double-slit interference pattern on a screen. The point on the screen marked with a white dot

Alenkasestr [34]

Explanation:

Diffraction is a characteristic phenomenon for waves, and is based on their variance to find an obstacle or a crack. The diffraction and interference are inseparable phenomena, which are so harder to identify. Since diffraction is a specific type of interference.

if the point are in the order 2, and

the equation is d×senx=mL y at m=2

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3 years ago