1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ganezh [65]
4 years ago
8

What is the formula for calculating density?

Physics
2 answers:
Sophie [7]4 years ago
6 0
<span>Density can be determined by the mass of an object and how much it takes up space (volume). It is represented by the formula D = M/V where D is the density in kg/m^3 or lb/ft^3, M is the mass in 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 an object of 40.5kg and a volume of 15m^3. Find its density.</span>  

D = M/V
D = (40.5 kg) / (15 m^3)
<span>D = 27/10 or 2.7 kg/m^3 </span>
Zarrin [17]4 years ago
3 0

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.

You might be interested in
If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide? *
Tamiku [17]

Answer:

a

Explanation:

can you help me with my question According to the narrator in Paragraph 3 of "The Celebrated Jumping Frog of Calaveras County," Simon Wheeler's tone throughout his entire tale was A earnest and sincere, B. excited and pressing, C. sad and melancholy,

5 0
2 years ago
_________ changes from day to day, while ____________ changes from region to region. A) climate, weather B) weather, climate C)
vladimir2022 [97]

B) Weather changes day to day, while climate changes region to region.

Climate is the weather in a certain area. It's usually the average weather over a long period of time

Weather is in shorter terms then climate

Hope this helped!

~Just a girl in love with Shawn Mendes

7 0
3 years ago
Read 2 more answers
Calories tell you how much energy is in a food. True or False​
IRINA_888 [86]

Answer:True. The number of calories in a food is a measure of how much potential energy that food possesses.

Explanation:

6 0
3 years ago
Read 2 more answers
A 129-kg horizontal platform is a uniform disk of radius 1.61 m and can rotate about the vertical axis through its center. A 65.
LUCKY_DIMON [66]

Answer:

Moment of inertia of the system is 289.088 kg.m^2

Explanation:

Given:

Mass of the platform which is a uniform disk = 129 kg

Radius of the disk rotating about vertical axis = 1.61 m

Mass of the person  standing on platform = 65.7 kg

Distance from the center of platform = 1.07 m

Mass of the dog on the platform = 27.3 kg

Distance from center of platform = 1.31 m

We have to calculate the moment of inertia.

Formula:

MOI of disk = \frac{MR^2}{2}

Moment of inertia of the person and the dog will be mr^2.

Where m and r are different for both the bodies.

So,

Moment of inertia (I_y_y )  of the system with respect to the axis yy.

⇒ I_y_y=I_d_i_s_k + I_m_a_n+I_d_o_g

⇒ I_y_y=\frac{M_d_i_s_k(R_d_i_s_k)^2}{2} +M_m(r_c)^2+M_d_o_g(R_c)^2

⇒ I_y_y=\frac{129(1.61)^2}{2} +65.7(1.07)^2+27.2(1.31)^2

⇒ I_y_y=289.088\ kg.m^2

The moment of inertia of the system is 289.088 kg.m^2

7 0
3 years ago
Mechanical energy is a term that is used to describe
larisa86 [58]
The sum of potential energy<span> and kinetic </span><span>energy.
Hope I helped!</span>
7 0
3 years ago
Other questions:
  • The strength of intermolecular forces between particles affects physical properties of substances such as boiling point, melting
    12·2 answers
  • PLEASE HELP ASAP!! Will give brainliest!!<br><br> Which item is necessary to make an electromagnet?
    6·1 answer
  • The bright, visible surface of the sun is called the
    7·1 answer
  • 1) A substance has a half life of 20 years. what percentage would be left after 40 years?
    6·1 answer
  • What percent of sample of AS-198 to decay to 1/8 its original
    6·1 answer
  • Which statement describes the difference between renewable and nonrenewable energy sources
    14·1 answer
  • A 1 036-kg satellite orbits the Earth at a constant altitude of 98-km. (a) How much energy must be added to the system to move t
    11·1 answer
  • Which is the distance of the satellite from Earth?
    10·2 answers
  • Where is hydrogen grouped on the periodic table?
    15·2 answers
  • A hockey puck attached to a horizontal spring oscillates on a frictionless, horizontal surface. The spring has force constant 4.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!