Can we measure distances in micrometers? Depending on the type of micrometer available, a variety of distances can be measured. It could measure the diameter of a hole, the length of the surface of a nail or the depth of a slot. Standard micrometers will measure objects less than one inch in length/depth/thickness. Which is […]
Why is it a good idea to start with room temperature water in the calorimeter?
Why is it a good idea to start with room temperature water in the calorimeter? It is a good idea to start with room temperature water in the calorimeter because the room temperature water helps to determine the heating up/cooling down because of the environment as the experiment takes place. Because the calorimeter heat is […]
Why does the universe exist?
Why does the universe exist? The Big Bang theory is the prevailing cosmological description of the development of the universe. According to estimation of this theory, space and time emerged together 13.799±0.021 billion years ago, and the universe has been expanding ever since. How many planets are there in the universe? 10,000,000,000,000,000,000,000,000 planets How big […]
How long does it take for the blood to circulate through the body?
How long does it take for the blood to circulate through the body? For the blood to circulate throughout the body and back to the heart, it takes about one minute. How fast does your blood circulate through your body? The 5 quarts of blood an adult male continually pumps (4 quarts for women) flow […]
What are periods and groups?
What are periods and groups? All the different elements are arranged in a chart called the periodic table. Here are the main features of the table: the horizontal rows are called periods. the vertical columns are called groups. elements in the same group are similar to each other. What does the group number mean? The […]
Does changing the mass affect acceleration?
Does changing the mass affect acceleration? Increasing force tends to increase acceleration while increasing mass tends to decrease acceleration. Thus, the greater force on more massive objects is offset by the inverse influence of greater mass. Subsequently, all objects free fall at the same rate of acceleration, regardless of their mass. How does changing force […]
Does BTS own a black card?
How many ohms Should a coil have?
What is the relation between R and H?
What is the relation between R and H? Hint: R, the horizontal range of a projectile is the total horizontal distance that travels in a motion. And H is the maximum height a body attains in a projectile before it starts to fall downwards. What is the correct relation of resistivity? Resistivity, commonly symbolized by […]
Which element is present in major amount in human body?
Which element is present in major amount in human body? Nitrogen – 2.4kg The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of […]