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
madreJ [45]
2 years ago
11

What is the mass of an object with a density of 18 g/cm3 and a volume of 25 cm3

Physics
1 answer:
DiKsa [7]2 years ago
5 0

Answer: 0.72 grams

Explanation: Mass can be extracted from the formula of density. D=M/V where D is density and V is volume. Therefore:

18 g/cm^3 = M(25 cm^3) --> Divide by 18g/cm^3 by 25 cm^3 to isolate mass. --> <u>0.72 =M </u> --> Now, to find out which unit you need to use for mass, just look at the density. You can see it is in g/cm^3, and cm^3 was already used for the volume. Thus, gram units are left, so that will be the unit needed, making the final answer 0.72 grams. Hope this helps :)

You might be interested in
On the EM spectrum, visible light is found between
stich3 [128]
Visible light is found between infrared rays (lower frequency, higher wavelength) and ultraviolet rays (higher frequency, lower wavelength). This the spectrum of light that we are able to see reflected back at us, and is also the spectrum of color that we are able to see. 

Answer is D
3 0
3 years ago
Read 2 more answers
Collapse question part Part 4 (d) What is the unit vector in the direction of the spacecraft's velocity? (Express your answer in
Maksim231197 [3]

Answer:

unit (v) = [ -0.199 i - 0.8955 j + 0.39801 k ]

Explanation:

Given:

                            v =  (-23.2, -104.4, 46.4) m/s

Above expression describes spacecraft's velocity vector v.

Find:

Find unit vector in the direction of spacecraft velocity v.

Solution:

Step 1: Compute magnitude of velocity vector.

                            mag (v) = sqrt ( 23.2^2 + 104.4^2 + 46.4^2)

                            mag (v) = 116.58 m/s

Step 2: Compute unit vector unit (v)

                            unit (v) = vec (v) / mag (v)

                            unit (v) = [ -23.2 i -104.4 j + 46.4 k ] / 116.58

                            unit (v) = [ -0.199 i - 0.8955 j + 0.39801 k ]

7 0
3 years ago
Argon makes up 0.93% by volume of air. Calculate its solubility (in mol/L) in water at 20°C and 1.0 atm. The Henry's law constan
vladimir2022 [97]

Answer:

S= 1.40x10⁻⁵mol/L

Explanation:

The Henry's Law is given by the next expression:

S = k_{H} \cdot p (1)

<em>where S: is the solubility or concentration of Ar in water, k_{H}: is Henry's law constant and p: is the pressure of the Ar </em>

<u>Since the argon is 0.93%, we need to multiply the equation (1) by this percent:</u>

S = 1.5 \cdot 10^{-3} \frac{mol}{L\cdot atm} \cdot 1.0atm \cdot \frac{0.93}{100} = 1.40 \cdot 10^{-5} \frac{mol}{L}

Therefore, the argon solubility in water is 1.40x10⁻⁵mol/L.

Have a nice day!          

8 0
3 years ago
How was bohr atomic model similar to Rutherford's model​
Juliette [100K]
Both believe that an atom contains negative charges and positive charges.
But both were different in the placement of charges
6 0
3 years ago
Read 2 more answers
Name two types of sound wave​
kiruha [24]

Explanation:

two types of sound wave

  1. transverse wave
  2. Longitudinal wave
5 0
3 years ago
Other questions:
  • Helen Keller was stricken with scarlet fever as an infant and ended up blind and with no hearing. Her ability to speak didn't oc
    11·2 answers
  • You ride your skateboard to school and tell all your friends your rode at speed of 25 miles per hour. They know this cannot be t
    7·2 answers
  • Is this right? if not how do u do it?
    8·1 answer
  • A uniformly charged rod of length L = 1.3 m lies along the x-axis with its right end at the origin. The rod has a total charge o
    11·1 answer
  • Determine the density of a liquid from the following data .
    13·2 answers
  • The nearest neighbor interaction force is of magnitude 481 nanoNewtons, e.g., the magnitude of the force of the leftmost electro
    9·1 answer
  • Average acceleration of an object is the:
    13·1 answer
  • Someone talk o me I’m bored
    8·2 answers
  • So far, you’ve been working with an "ideal" pulley system. How do you think real pulley systems are different, and how would tha
    5·1 answer
  • 1. A silicon BJT is connected as shown in Fig 1, where RC = 3.6 k 2. VBE = 0.8 V. (10%)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!