PHYSICS HIGH SCHOOL

A sample of gold has a mass of 38.6 grams and a volume of 2 cm3. What is the density of gold

Answers

Answer 1
Answer:

The density of the sample of gold whose mass is 38.6 grams and with a volume of 2 cm³ is 19300 kg/m

Density: This can be defined as the ratio of mass and velocity. The S.I unit of density is kg/m³.

The question above can be solved using the formula below

D = m/V.................... Equation 1

Where D = density of the sample of gold, m = mass of gold, V = volume of gold.

From the question,

Given: m = 38.6 g, = 0.0386 kg, V = 2 cm³ = 0.000002 m³

Substitute these values into equation 1

D = 0.0386/0.000002

D = 19300 kg/m³

Hence the density of the sample of gold is 19300 kg/m³

Learn more about density here: brainly.com/question/23562510
Answer 2
Answer:

Answer:

19.3 g/cm^3

Explanation:

The density of a material is given by

\rho = (m)/(V)

where

m is the mass of the sample

V is its volume

for the sample of gold in this problem,

m = 38.6 g

V=2 cm^3

Substituting into the formula, we find the density of gold:

\rho = (38.6)/(2)=19.3 g/cm^3

Related Questions

The total potential and kinetic energy of all the microscopic particles in an object make up itsa. nuclear energy. b. chemical energy. c. electric energy. d. thermal energy.
If a 78.2 kg kangaroo weighs 6742 N on the planet katar, calculate katar's radius
In one hand you hold a .12-kg apple, in the other hand a .20-kg orange. The apple and orange are separated by .75 m. What is the magnitude of the force of gravity that (a) the orange exerts on the apple? (b) the apple exerts on the orange?
What is a Vector and a scalar?
A person throws a tennis ball 6 m/s straight up. How long does it take for it to come back to their hand?

PLEASE HELP :/george walks to a friend's house. he walks 750 meters north, then realizes he walked too far he turns and walks 250 meters south. the entire walk takes him 50 seconds whats his distance and displacement?​

Answers

As U asked this question twice sry not twice 4 times.. I have been answered the question..Just look there..

Tq

a negative charge is moving across the room from south to north. a magnetic field runs from east to west. in what direction is the magnetic force moving negative charge? a. toward the east b. toward the west c. toward the floor d. toward the ceiling

Answers

The correct answer is:

c. toward the floor


In fact, we can find the direction of the magnetic force that acts on a positive moving charge by using the right-hand rule:

- index finger: direction of the charge

- middle finger: direction of magnetic field

- thumb: direction of the force

We also have to keep in mind that for a negative charge, we should reverse the direction of the thumb in order to find the correct direction of the force.


In this case:

- index finger: south to north

- middle finger: east to west

- thumb: toward the ceiling

and since the charge is negative, we have to reverse the sign of the thumb, so the magnetic force points toward the floor.
The correct answer for the question that is being presented above is this one: "a. toward the east." A negative charge is moving across the room from south to north. a magnetic field runs from east to west. The direction of the magnetic force moving negative charge is toward the east.

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.50×1016 kg and a radius of 9.00 km .What is the speed of a satellite orbiting 4.60 km above the surface?

Answers

Answer:

8.58 m/s.

Explanation:

Given,

Mass of the asteroid,M = 1.50 x 10¹⁶ Kg

radius = 9 Km

distance of the satellite, r = 4.60 Km

Speed of the satellite  = ?

R = 9 + 4.60 = 13.60 Km

Speed of the satellite rotating in orbit

v = \sqrt{(GM)/(R)}

G is gravitational constant

v = \sqrt{(6.67* 10^(-11)* 1.50* 10^(16))/(13.60* 10^3)}

v = 8.58 m/s

Speed of the satellite is equal to 8.58 m/s.

Why does water have a high surface tension?Hydrogen bonding keeps water molecules close together.
Water is a liquid at room temperature.
Water molecules contain 18 electrons.
The lengths of the bonds in water molecules can change.

Answers

Hydrogen bonding keeps water molecules close together.

Answer:

HYDROGEN BONEDNDED

Explanation:

The magnitudes of the vectors in this diagram are vx/y = 17.94 meters/second and vy/z = 3.46 meters/second. Find vx/z.

Answers

It's very hard to make out the diagram.  I think we need
to see it clearly in order to answer the question.

Answer:

See image

Explanation:

Plato

Air pollution affects everyone equally. true or false

Answers

This is false. People with asthma or allergies are affected more than people without those conditions. 
False. There are people in different locations that do not use anything to pollute the air, so they have less pollution. There is also people who have asthma or react to pollution. Hope this helped!
Other Questions
How could two waves on a rope interfere so that the rope did not move at all.
The ability of a material to transfer heat or electric current is calledA. conductivity.B. insulation.C. porosity.D. convection.
Quan sát sóng dừng trên sợi dây dài 60cm cố định hai đầu, thấy có 3 nút (bao gồm cả hai nút hai đầu) và 2 bụng. Bước sóng của sóng lan truyền trên sợi dây là:A. 30cm. B. 40cm. C. 20cm. D. 60cm.
Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia