PHYSICS HIGH SCHOOL

What is the formula for calculating density?A. density=mass/volume
B. density=mass*volume
C. density=volume/mass
D. density=mass + volume

Answers

Answer 1
Answer: Density can be determined by themass of an object and how much it takes up space (volume). It is represented bythe formula D = M/V where D is the density in kg/m^3 or lb/ft^3, M is the massin kg or lb and V is the volume in m^3 or ft^3. The answer would be A.  For example, you are given the mass of anobject of 40.5kg and a volume of 15m^3. Find its density. 

D = M/V
D = (40.5 kg)/ (15 m^3)
D = 27/10 or2.7 kg/m^3 
Answer 2
Answer:

Answer:

My answer is A.

Explanation:

by using a density triangle, you would have to cover up the density and then it will show you, m over v. so that means you would have to divide.

Related Questions

Which is an example of a wedge? a. bowl b. spoon c. fork d. knife
What is air pressure?
An unknown fiber sample is found at a crime scene. Forensic scientists measure its index of refraction and obtain a value of 1.48. A suspect's jacket was made of Dacron polyester, his jeans were made of cotton, his shirt was made of rayon, and his tie was made of acetate. Which piece of clothing may match the fiber at the crime scene?Question 12 options:tieshirtjeansjacket
Which states the law of conservation of energy?A. Energy cannot be created or destroyed, but it can be converted or changed into different forms. B. Energy can be created or destroyed, and it can be converted or changed into different forms. C. Energy cannot be created or destroyed, nor can it be converted or changed into different forms. D. Energy can be created or destroyed, but it can not be converted or changed into different forms.
A flywheel with a moment of inertia of 1.00kg m^2 is rotating at 100 rpm. What torque is required to bring it to rest in 10.0 revolutions?

An electron in a mercury atom changes from energy level b to a higher energy level when theatom absorbs a single photon with an energy of 3.06 electronvolts.

Determine the letter that identifies the energy level to which the electron jumped when the mercury
atom absorbed the photon.

Answers

The letter that identifies the energy level to which the electron jumped when the mercury atom absorbed the photon could be L or M.

What is energy level?

Energy levels or electron shells are fixed distances from the nucleus of an atom where electrons may be found.

Letter that identifies the energy level of an atom

A single capital letter K is for the lowest energy level, and capital letters like L and M are used for energy levels further from the nucleus.

Thus, the letter that identifies the energy level to which the electron jumped when the mercury atom absorbed the photon could be L or M.

atom absorbed the photon.

Learn more about energy level here: brainly.com/question/14287666

#SPJ2
The energy is 3.06 electron volts,  E = 3.06eV

1eV = 1.6 * 10^-19 J

3.06 eV = 3.06* 1.6 * 10^-19 J = 4.896 * 10^-19 J

Describe Earth's three global wind belts

Answers

Polar Easterlies: From 60-90 degrees latitude.
Prevailing Westerlies: From 30-60 degrees latitude (aka Westerlies).
Tropical Easterlies: From 0-30 degrees latitude (aka Trade Winds).

a 0.40kg soccer ball approaches a player horizontally with a velocity of 18m/s north. the player strikes the ball and causes it to move in the opposite direction with a velocity of 22m/s. what impulse was delivered to the ball by the player?

Answers

Impulse = Ft = (m)(delta v)
delta v = change in velocity = velocity final - velocity initial.
= -22m/s - +18m/s = -40m/s.
mdeltav = (0.40kg)(-40m/s) = -16kgm/s or -16Ns.

Final answer:

Impulse corresponds to the change in momentum. Given a soccer ball weighing 0.40kg moving first at 18m/s north and then hit in the opposite direction at 22m/s, the impulse delivered to the ball by the player is approximately 16 kg.m/s in the opposite direction of the initial movement.

Explanation:

In the field of physics, impulse is defined as the change in momentum of an object upon interaction with an external force and is calculated by multiplying the force applied to the object by the time interval (duration) the force was acting. When a soccer player strikes the ball, he or she applies a force that changes the soccer ball's momentum.

Considering your question about the soccer ball, the initial momentum of the ball can be calculated by multiplying its mass (0.40 kg) by its velocity (18 m/s), giving 7.2 kg.m/s north. When the player hits the ball, it moves in the opposite direction (south) with a velocity of 22 m/s. Thus, the final momentum of the ball is 0.40 kg x -22 m/s = -8.8 kg.m/s.

Impulse is the change in momentum, so it's the final momentum minus the initial momentum, which equates to -8.8 kg.m/s - 7.2 kg.m/s= -16 kg.m/s south or +16 kg.m/s north, depending on the coordinate system you choose (north could be either positive or negative). Since the direction reversed, this is why we have a negative sign.

Learn more about Impulse here:

brainly.com/question/34839253

#SPJ13

You cant see the cells in your body because most of them are very small true or false?

Answers

Answer: The given statement is True.

Cells are the basic fundamental, structural, and functional unit of all living organisms.

Cells are the microscopic structures, which are responsible for performing all the functions of life. Thus, cells present in the body of living organisms can not be visible through naked eyes.

Therefore, the given statement is True.
True you can't see them because most of them are way too small to see.

The apparent change of frequency of a source of sound due to it me relative motion between the sound and a listener is called the

Answers

That's the "Doppler effect". It's also the operating principle
behind police speed radar.

Prudence means acting with ______.a.
Self restraint
b.
Fairness
c.
Caution
d.
Honesty

Answers

By definition we have to:

It is the capacity that the human being has to think at the moment of acting before certain activities, about the possible risks that these can have, and modify their behavior so as not to receive or produce unnecessary damages.

In other words we can say that prudence means acting with caution in certain activities.

Answer:

Prudence means acting with caution.

c.Caution
it means cautious :)
Other Questions
Which topic in a biology textbook is directly related to physics?
Consider the markets for BP​ supreme-grade gasoline, all BP grades of​ gasoline, and all gasoline. For which of these three markets will demand be most​ elastic? Demand will be most elastic for?
explain why the motion of a body which is moving with constant speed in a circular path is said to be accelerated ?
using kepler's 3rd law and newton's law of universal gravitation, find the period of revolution p of the planet as it moves around the sun. assume that the mass of the planet is much smaller than the mass of the sun.