Iron has a density of 7.9 g/cm3. What is the mass of a cube of iron with the length of one side equal to 55.0 mm?

Answers

Answer 1

Answer: Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. To find the mass of the substance, we need to multiply the volume occupied by the substance.

Mass = Density x Volume
Mass = 7.9 g/cm^3 (5.5 cm)^3
Mass = 43.45 g

Answer 2

Answer:

Answer:

Mass, m = 1.31 kg

Explanation:

It is given that,

Density of iron, $d=7.9\ g/cm^3$

Side of cube, a = 55 mm = 5.5 cm

We need to find the mass of the cube of iron. Mass per unit volume is called the density of the substance. It is given by :

$d=(m)/(V)$

$d=(m)/(a^3)$

$m=d* a^3$

$m=7.9* (5.5)^3$

m = 1314.36 grams

m = 1.31 kg

So, the mass of the iron cube is 1.31 kg. Hence, this is the required solution.

Related Questions

The forces acting on a falling leaf are
Calculate the speed of the ball, vo in m/s, just after the launch. A bowling ball of mass m = 1.5 kg is launched from a spring compressed by a distance d = 0.21 m at an angle of θ = 32° measured from the horizontal. It is observed that the ball reaches a maximum height of h = 4.4 m, measured from the initial position of the ball. Let the gravitational potential energy be zero at the initial height of the bowling ball.
If a crate weighing 350. N is at rest on an inclined plane whose angle provides the crate with 150. N of normal force, at what angle to the horizontal would the ramp be?
A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2? F= M= A=
Select all of the following that describes momentum, p [mark all correct answers] a. momentum is the product of mass and acceleration b. momentum is the product of mass and speed c. momentum is the product of mass and velocity d. momentum is a scalar quantity e. momentum is a vector quantity f. momentum has unit of newton (N) g. momentum has unit of kgm/s h. momentum has unit of kgm2/s2 i. momentum has unit of joule (J) j. momentum is one-half the product of mass and the square of the object's speed

The jovian planets contain a large percentage of the gases

Answers

The Jovian planets contain large percentage of Gases its because they are formed outside of what they called as frost line where temperature is low enough for ice condensation unlike terrestrial planets formed close to the sun where the temperature is very appropriate for metal and rock to condense.

The Jovian planets contain a large percentage of the gases Hydrogen and Helium.

PLEASE HELP !What is the acceleration of a ball that starts at rest and increases in speed
to 20 m/s in 45 seconds? *

Answers

20/45 = 0.4? I’m not sure but I think this is it

20/45 which will be 0.4:))

A compass needle normally points toward Earth’s magnetic pole, which is near the North Pole. Which best explains why the needle moves away from the pole when it comes close to a current-carrying wire?-Current within the wire weakens the magnetic force of the pole.
-Magnetism surrounding the wire weakens the magnetic force of the pole.
-Magnetism surrounding the wire draws the needle toward the wire.

Answers

Answer

-Magnetism surrounding the wire draws the needle toward the wire.

Explanation
When a compass needle is placed near a conductor carrying current, it deflects to one side.
This happens because the magnetic field due to the needle interact with electric fields around the conductor carrying carrying current resulting to a force that makes the needle to deflet.
The best answer that suits the question asked is -Magnetism surrounding the wire draws the needle toward the wire.

A compass needle normally points toward Earth’s magnetic pole, which is near the North Pole. The best explanation why the needle moves away from the pole when it comes close to a current-carrying wire is Magnetism surrounding the wire draws the needle toward the wire.

Describe two reasons why an alpha particle is less penetrating than a beta or gamma particle.

Answers

Alpha particles travel through the air they collide with oxygen and nitrogen molecules. While they collide with these molecules, they lose some energy until all energy are used up and they are absorbed. These particles can be absorbed by a sheet of paper or by the air. On the other hand, beta particles and gamma particles move faster than the alpha particles and are poor at ionizing atoms or molecules thus it takes more of the material to be able to absorb these particles.

Answer:

1. Heavy mass

2. greater charge

Explanation:

An alpha particle has two protons and two neutrons. It has +2 e charge. It is a heavy mass particle. Thus, when it tends to penetrate even a thin sheet, it loses its energy very quickly because of its interaction with the material particles.

Beta particle is a high energy electron or positron. It carries 1 unit charge and has very less mass in comparison to an alpha particle. Thus, it has more penetrating power than alpha particle.

A gamma particle is charge less and mass less highly energetic particle. Thus, it has highest penetrating power.

a wagon weighing 1800 newtons is pulled by a horse at a speed of 0.40 m/sec. what is the power of this horse?

Answers

Power is equal to (Newtons x meters)/time, also known as the following equation...

P = Fd/t

Your force is 1800Newtons and your velocity is 0.4m/s
Velocity is equal to distance/time, also known as the following equation...

v = d/t

So your equation is basically P = Fv

P = 1800N x 0.4m/s

P = 720 Watts

I need help on this question

Answers

Answer:

at rest because time is passing and speed is still at 0

Explanation:

Other Questions

Imagine that you have a rectangular swimming pool, but you have no idea how deep it is. You know that the pool has a volume of 216 m3 . You measured the dimensions of the pool and found that it is 15 m long and 6 m wide. A. Calculate the depth of the pool. Show your work.

Which of the following does not represent a mechanical wave?sound waves in the ocean waves in a wheat field light

A bear is sitting at rest on a tricycle. The bear then starts to accelerate uniformly at a rate of 2.5m/s2. How long will it take the bear to reach a velocity of 15 m/s?

Can you put hot water in a insulated gatorade cooler