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
raketka [301]
3 years ago
8

Calculate the mass of a liquid with a density of 2.5 g/ml and a volume of 15ml

Physics
1 answer:
Nana76 [90]3 years ago
3 0
Using the density equation and clearing mass:

\rho = \frac{m}{V}\ \to\ m = \rho\cdot V = 2.5\frac{g}{mL}\cdot 15\ mL = \bf 37.5\ g
You might be interested in
Is the text in red correct (0n0')
Ede4ka [16]
Yes the text in the red is correct.
8 0
3 years ago
Compared to its weight on Earth, a 10-kg object on the moon will weigh Question 9 options: less. the same amount. more.
Nostrana [21]

it will weigh less on the moon.

3 0
3 years ago
Read 2 more answers
Which are standard functions that families are responsible for providing?
Savatey [412]

C: life skills, stability, resources, affection


4 0
3 years ago
Read 2 more answers
Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above i
Mice21 [21]

Answer:

r = 5.08 m

Explanation:

The electric force of attraction or repulsion is given by :

F=\dfrac{kq_1q_2}{r^2}

We need to find how far above the electron would the proton have to be if you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it.

So, the force from the proton is balanced by the mass of the electron.

\dfrac{kq_pq_e}{r^2}=mg

r is distance

r=\sqrt{\dfrac{kq_pq_e}{mg}} \\\\r=\sqrt{\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{9.11\times 10^{-31}\times 9.8}} \\\\r=5.08\ m

So, proton have to be at a distance of 5.08 meters above the electron.

3 0
3 years ago
A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. When you gently pluck the upper end
Triss [41]

Answer: m= 35.6 kg

Explanation:

For finding the mass of the stone we have the formula

v= \sqrt{\frac{Tension}{Linear. Mass. density} }

Here, Tension= m*g = m*9.81

and linear mass density= \frac{8.25 g}{65 cm}

Linear mass density= \frac{8.25*10^-3}{65*10^-2}

Linear mass density= 0.0127 kg/m

Velocity= 2*\frac{l}{t}

Velocity= 2 * \frac{65*10^-2}{7.84}

Velocity= 165.8 m/s

So putting all these values in equation we get

v= \sqrt{\frac{Tension}{Linear. Mass. density} }

165.8= \sqrt{\frac{m*9.81}{0.0127} }

Solving we get

m= 35.58 kg

or m= 35.6 kg

3 0
3 years ago
Other questions:
  • Yesenia wants to bake cookies in her electric oven. The oven will transform electrical energy into ________ energy
    6·2 answers
  • What is a change that will not affect the pressure in a container
    6·2 answers
  • Conserving energy makes which type of energy last longer?
    10·1 answer
  • 12. What does positive and negative acceleration indicate?
    6·1 answer
  • When a 4.32 kg object is hung vertically on a certain light spring that obeys Hooke's Law, the spring stretches 2.92 cm.
    12·1 answer
  • How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°c to its boiling point?
    9·1 answer
  • Discuss how the move over law applies to this is situation and your responsibility as a driver
    14·2 answers
  • A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver of the lead car becomes sleep
    8·1 answer
  • How are distance and time related when describing motion?
    8·1 answer
  • A car of mass 5000 kg was initially moving at 100 km/h and stops at a distance of 55 m. Find the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!