Given data
mass of solute (m) = 1.2 g ,
Volume of solution = 1.5 L ,
= 1.5 × 1000 mL
= 1500 mL ,
What is the concentration of solution = ?
concentration = (mass of solute) ÷ (100 mL of solution)
= (1.2) ÷ (1500 mL of solution)
<em> Note: </em><em> remember to divide both numerator and denominator by 15 to get concentration per 100 ml</em>
<em> Therefore concentration = 0.1 /100 mL ;</em>
<em>The concentration of sugar in a tea is 0.1/100 mL</em>
Answer:
<em>C. Inverted, real, and larger</em>
Explanation:
Inverted - An inverted image is formed when the rays intersect below the principal axis. An inverted image points downward.
Real - A real image can be projected on a screen. A real image is on the opposite side of lens as compared to the object. Whereas, for a mirror, a real image forms on the same side as the object.
Image size - a general measure of the image as compared to the original object. Image size is typically stated as smaller than the object, the same size as the object, or larger than the object.
Answer:
Angle and speed of wave
Explanation:
The two phenomena involved here are:
- Reflection: reflection occurs when a light wave bounces off the interface between two mediums, returning into the first medium, at a different angle
- Refraction: refraction occurs when a light wave passes through the interface between the two mediums, passing into the second medium, changing direction and speed
The coefficient of reflection tells what is the fraction of the wave that is reflected over the total; it is calculated as
where
are the index of refraction of the 1st and 2nd medium
are the angle between the ray of light and the normal to the interface in the 1st and 2nd medium
From the formula, we see that the % of wave that is reflected depends on the angle and the index of refraction. Moreover, the index of refraction is related to the speed of the wave by:
where c is the speed of light in a vacuum and v the speed of light in the medium; therefore, the correct answer is
Angle and speed of wave
Answer:
Examples of muscle-strengthening activities include:
lifting weights.
working with resistance bands.
heavy gardening, such as digging and shovelling.
climbing stairs.
hill walking.
cycling.
dance.
push-ups, sit-ups and squats.
Explanation:
Easy brother. You just need some luck.
Inside every black hole is a time machine that allows you to turn back time or go forward and teleport to any empty space in the universe. However to do so you need to get inside the black hole without dieing.
To do so you must make the hardest and lightest box you can make, fill it with a very dense kind of air that will allow you to breathe but not move. Then seal yourself In the box.
Get someone to throw you in the black hole. And if you come back alive give me a Brainliest answer ;)
