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
Mrac [35]
3 years ago
11

If an object has a volume of 2.5 mL and a mass of 10 g, what is the density of the object?

Physics
2 answers:
STALIN [3.7K]3 years ago
8 0
<span>The answer is 4                                                                                                                                                                                                                                 

done









</span>
skad [1K]3 years ago
4 0
We know, density = mass /volume 
Here, m = 10 g
v = 2.5 mL = 2.5 cm³

Substitute their values, 
density = 10/2.5
<span>d = 4 g/cm³
</span>
In short, Your Answer would be <span>4 g/cm³</span>

Hope this helps!
You might be interested in
The area around a charged object that can exert a force on other charged objects is an electric ___
Ymorist [56]
Answer is:

Electric field.
8 0
3 years ago
You will now examine the relationship between the number of field lines through a surface and the tangle betwcen A and E) angle
nikitadnepr [17]

Answer:

a. cosθ b. E.A

Explanation:

a.The electric flux, Φ passing through a given area is directly proportional to the number of electric field , E, the area it passes through A and the cosine of the angle between E and A. So, if we have a surface, S of surface area A and an area vector dA normal to the surface S and electric field lines of field strength E passing through it, the component of the electric field in the direction of the area vector produces the electric flux through the area. If θ the angle between the electric field E and the area vector dA is zero ,that is θ = 0, the flux through the area is maximum. If  θ = 90 (perpendicular) the flux is zero. If θ = 180 the flux is negative. Also, as A or E increase or decrease, the electric flux increases or decreases respectively. From our trigonometric functions, we know that 0 ≤ cos θ ≤ 1 for  90 ≤ θ ≤ 0 and -1 ≤ cos θ ≤ 0 for 180 ≤ θ ≤ 90. Since these satisfy the limiting conditions for the values of our electric flux, then cos θ is the required trigonometric function. In the attachment, there is a graph which shows the relationship between electric flux and the angle between the electric field lines and the area. It is a cosine function  

b. From above, we have established that our electric flux, Ф = EAcosθ. Since this is the expression for the dot product of two vectors E and A where E is the number of electric field lines passing through the surface and A is the area of the surface and θ the angle between them, we write the electric flux as Ф = E.A  

4 0
3 years ago
Determine a formula for the acceleration of the system in terms of mA, mB, θ, and g. Ignore the mass of the cord and pulley. Exp
jekas [21]

Answer:

a=\frac{mBg-mAgSin\theta}{mA+mB}

Explanation:

Given two mass on an incline code mA and mB and an angle of inclination \theta. g. Assume that mA is the weight being pulled up and mB the hanging weight.

-The equations of motion from Newton's Second Law are:

mBg-T=mBa where a is the acceleration.

#Substituting for T (tension) gives:

mBg-mAsin\theta-mAa=mBa

#and solving for a:

a=\frac{mBg-mAgSin\theta}{mA+mB} which is the system's acceleration.

8 0
3 years ago
Which type of energy will definitely not be used in the lighting of a match?
In-s [12.5K]
I say that the answere would be B
4 0
3 years ago
Find the measure of angle x in the figure below:
Serga [27]

Answer:

51°

Explanation:

4 0
2 years ago
Other questions:
  • A train travels 76 kilometers in 2 hours and then 54 kilometers in 5 hours .What is the average speed ?
    7·1 answer
  • g A ball is thrown against the wall and bounces back with the same velocity. What type of collision is this
    11·1 answer
  • A constant force of 40N acting on a body initially at rest gives it an acceleration of 0.1m/s inverse 2 for 4s .calculate the wo
    13·1 answer
  • How does Newton's first law of motion affect people in a car crash?​
    11·1 answer
  • a cannonball is fired with a speed of 76 m/s from the top of a cliff. It strikes the plane below with a speed of 89 m/s. if we n
    13·1 answer
  • To make and sell fireplaces, Hearth, Inc., buys igniters, tubing, and other parts from Inflame Parts and installs them without m
    15·1 answer
  • What does wave speed have to do with all SONAR AND RADAR technologies?
    12·2 answers
  • "On a good day, it takes Mr. Hess 23 minutes (1380 seconds) to drive the 12 miles (19,300 meters). What is his average velocity
    12·1 answer
  • A boy is pulling his two sisters on a sled.
    14·1 answer
  • A farmer buys a piece of rectangular land with an area of 14 acres.He wishes to grow broccoli which requires 20" separation betw
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!