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
Talja [164]
3 years ago
8

A gold bar has a density of 19.3 g/mL. If the gold bar has a mass of 6.3 grams, what is the volume?

Physics
1 answer:
Natali [406]3 years ago
7 0

Answer:

The correct answer is "0.32 mL".

Explanation:

The given values are:

Density of gold bar,

d = 19.3 g/mL

Mass of gold bar,

m = 6.3 grams

Now,

The volume will be:

⇒  Density = \frac{Mass}{Volume}

or,

⇒  Volume=\frac{Mass}{Density}

On substituting the values, we get

⇒               =\frac{6.3 \ g}{19.3 \ g/mL}

⇒               =0.32 \ mL

You might be interested in
This equation represents Newton's Second Law of Motion, F=ma. It shows the relationship of force, mass, and acceleration. How wi
inn [45]
A. The acceleration will be doubled
3 0
3 years ago
An object with a mass of 5.0 Kg has a force of 20.0 newtons applied to it. What is the resulting acceleration of the object?
postnew [5]
From newtons second law of motion,
F=ma hence,
F=20N
m=5kg so,
20=5×a
a=4m/s^2
8 0
3 years ago
Resolvemos los siguientes planteamientos.
Luden [163]

Answer:

if you can type it in english

Explanation:

it's 4

8 0
3 years ago
Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false
blagie [28]
<span>Sometimes when you are training for event you may notice a decrease in improvement in level out of performance. T</span>rue 

3 0
4 years ago
Read 2 more answers
How to solve these two questions? ​
hammer [34]

1) See attached figure

The relationship between charge and current is:

i = \frac{Q}{t}

where

i is the current

Q is the charge

t is the time

Therefore, the current is the rate of change of the charge passing through a given point over time.

This means that for a graph of charge over time, the current is just equal to the slope of the graph.

For the graph in this problem:

- Between t = 0 and t = 2 s, the slope is

\frac{50-0}{2-0}=25 C/s

therefore the current is

i = 25 A

- Between t = 2 s and t = 6 s, the slope is

\frac{-50-(50)}{6-2}=-25 C/s

therefore the current is

i = -25 A

- Between t = 6 s and t = 8 s, the slope is

\frac{0-(-50)}{8-6}=25 C/s

therefore the current is

i = 25 A

The figure attached show these values plotted on a graph.

2) 15 \mu C

The previous equation can be rewritten as

Q = i t

This equation is valid if the current is constant: if the current is not constant, then the total charge is simply equal to the area under a current vs time graph.

Here we have the current vs time graph, so we gave to find the area under it.

The area of the first triangle is:

A_1 = \frac{1}{2}(0.001 s)(0.010 A)=5\cdot 10^{-6} C

While the area of the second square is

A_2 = (0.002 s - 0.001 s)(0.010 A)=1\cdot 10^{-5}C

So, the total area (and the total charge) is

Q=A_1 +A_2 = 5\cdot 10^{-6} + 1\cdot 10^{-5} = 1.5\cdot 10^{-5}C=1.5 \mu C

3 0
4 years ago
Other questions:
  • An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid C and 581 km from the center of asteroid
    6·1 answer
  • What are some chemical properties of oreos??
    15·1 answer
  • Galileo determined that all objects fall to Earth with the same acceleration. What is the one requirement for this to be true?
    10·2 answers
  • Help me slove this problem 115 divided by 2
    14·2 answers
  • If you change the magnetic field in a closed loop of wire You induce in the loop a(n) A. current. B. voltage. C. electric field.
    13·2 answers
  • Calculate the distance moved by a runner who runs with a speed of 5 km/h for a period of 1.5 hours.
    14·1 answer
  • A girl of mass 50.0 kg sits on the right-hand side of a seesaw at a distance of 3.4 m
    10·1 answer
  • A ball is dropped from a window sill and hits the ground in 4.1s. What is the final velocity?
    11·1 answer
  • What are 2 ways that we can express to show our connection to our culture
    9·1 answer
  • John’s car travels a distance from A to B at a speed of 50 km/h for two hours as from B to C at a speed of 40 km/h for two hours
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!