The density of iron is 7.87 g/cm3. If an iron cannonball has a volume of 105 cm3
what is the mass of the ball?​

Answers

Answer 1

the answer is 0.284 lb/in3


Related Questions

Name the two poles of a magnet
What is meant by magnetism?​

Answers

North & South Pole, one is Iron and the other is electric

1. Aling lalawigan ng rehiyon ang napapaligiran ng mga bundok?
A. Cavite B. Batangas C. Laguna D. Quezon​

Answers

B.batangas po

Explanation:Yan Lang po Ang Alam ko

what is wave interactions? ​

Answers

Answer:

Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. The types of interactions are reflection, refraction, and diffraction. Each type of interaction is described in detail below.

Which of the following describes a displacement vs. time graph that looks like this?

A)Increasing Velocity

B)Constant Velocity

C)Constant Non-Zero Acceleration

D)Decreasing Acceleration

Answers

constant non zero acceleration

2 forces that oppose motion?​

Answers

Answer:

gravity and friction

Explanation:

A bulldozer uses a 500 N force to push a load of dirt 16 m to the worksite. How much work
does the bulldozer perform?

Answers

Explanation:

Force (F) = 500 N

Distance (d) = 16 m

work done (w) =?

We know that

w = F * d

= 500 * 16

= 8000 Joule.

The bulldozer performs 8000 Joule.

Hope it will help you :)❤

An airplane is traveling from North Africa to England. Which arrow correctly shows the direction gravity pulls the plane?

(A) 1

(B) 2

(C) 3

(D) 4

Answers

Given that,

The attached figure shows an airplane is traveling from North Africa to England.

To find,

The arrow that shows the direction gravity pulls the plane.

Solution,

The force of gravity always acts in the downward direction, The weight of an object is given by :

W = mg

Arrow 2 shows the direction of gravitational pull.

Answer:

2 or B

Explanation:

True or false?
There is no
difference
between speed
and velocity

Answers

Answer:

False

Explanation:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

Is this statement true or false?

There are SEVEN days between a NEW MOON and a FIRST QUARTER MOON.

If its false than how many days are between a new moon and a first quarter moon?

Answers

Answer:True

Explanation:there are approximately 29.531 on the new moon and and 7.31 I think for the first quarter then it’s 7 days between them if u calculate their sped that light travels and that number it might be the same but the statement is true not false

Answer:

The full cycle of moon phases averages 29.531 days. A quarter of that is 7.38 days. So "7 days" is a pretty good approximation for casual conversation. It's true.

Explanation:

uh i think that was my explanation soooooo like yall have a good day and if you are working at 1am just know it is not gonna be so hard one day it is gonna get better hehe

Which of these metals are magnetic?

Answers

Copper is not magnetic

Steel is magnetic

Nickel is magnetic

Tin is magnetic

Aluminum is not magnetic

HELP!!

8. The speed that the car is going at an instant of time is called the (5 points)

average speed
final speed
initial speed
instantaneous speed

Answers

Answer:

the speed that the car is going at an instant of time is called the instantaneous speed.

Instantaneous speed

Hope this helps.

Hardness, texture, color, and freezing point are all examples of what type of properties of matter?

A.) chemical

B.) positive

C.) physical

D.) negative

Answers

Answer:

physical

Explanation:

Lauren is comparing rocks from two different locations. She has the following
information about the rocks:
Rock A formed from small pieces of rock.
Rock B formed from liquid rock in a different place.
Rocks A and B formed at about the same time.
Are Rocks A and B the same or different types of rock?
.
The rocks are

Answers

Answer:

the same type because they both formed from rock material.

Explanation:

The rocks which are formed from small pieces of rocks are called sedimentary rocks whereas, the rocks formed from the liquid rocks or molten fluid rock, they are called igneous rocks. Hence, A rock A and B are of different types.

What is sedimentary rocks?

There are broadly three types of rocks namely  sedimentary rocks , igneous rocks and metamorphic rocks. These rocks can be interchanged to another forms through the process called rock cycle.

Sedimentary rocks are formed near the earth surface and which are deep within the earth. Sedimentary rocks are composed many  small pieces of rocks. Thus the rock A is sedimentary rock.

Igneous rocks are formed by the crystallization of molten magma after cooling. These magma are developed underground in the upper mantle. Magma becomes hot by the convection current and it flow making the nearby plates to move. When it cools, it solidifies to form igneous rocks. Thus, rock B is igneous type.

To find more on igneous rocks, refer here:

https://brainly.com/question/23555197

#SPJ5

What is the resultant force acting on an object with an eastward force of
15 N and a northward force of 30 N?

Answers

Explanation:

15N in the north direction

Density of water 1000kgper m^3 What will be the volume of 3500
kg water​

Answers

Answer:

The volume of water is 3.5 cubic meter

Explanation:

Density

The density of a substance or material is the mass per unit volume. The density varies with temperature and pressure.

The formula to calculate the density of a substance of mass (m) and volume (V) is:

[tex]\displaystyle \rho=\frac{m}{V}[/tex]

We are given the density of water as [tex]\rho=1,000\ kg/m^3[/tex].It's required to find the volume of m=3,500 kg of water. Solving for V:

[tex]\displaystyle V=\frac{m}{\rho}[/tex]

[tex]\displaystyle V=\frac{3,500}{1,000}[/tex]

[tex]V=3.5\ m^3[/tex]

The volume of water is 3.5 cubic meter

A car travelling at 10 m/s accelerates at 3 m/s^2 for 6 seconds. What is the final velocity of the car?

Answers

Answer:28m/s

Explanation:I got one point so yeah hope this help

When a car traveling at 10 m/s accelerates at 3 meters/ second² for 6 seconds, then the final velocity of the car would be 28 meters per second.

What are the three equations of motion?

There are three equations of motion given by  Newton

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

As given in the problem, a car traveling at 10 m/s accelerates at 3 m/s^2 for 6 seconds,

the initial velocity of the traveling car = 10 m/s

time =  6 seconds,

acceleration = 3 meters/ second²


With the help of the first equation of the motion, we can calculate the final velocity of the car,

v = u + at

v = 10 + 3*6

v = 28 m/s

Thus, the final velocity of the car would be 28 meters per second.

Learn more about equations of motion from here,

brainly.com/question/5955789

#SPJ2

A car with a mass of 833 kg rounds an unbanked curve in the road at a speed of 28.0 m/s. If the
radius of the curve is 105 m, what is the centripetal force exerted on the car?

Answers

I had the same question

A car travels at a constant speed of 40 miles per hour down the street for around 0.25 hours. What is its acceleration?

Answers

It’s acceleration is 0 if it was traveling at a constant speed

Answer:

55

Explanation:

was moving at 25 miles per hour

In incline plane makes an angle of 40° with the horizontal a body weighing 4000 N initial at rest moves down the slope calculate the distance travelled by the body in 5 seconds if the force of friction is 1500N

Answers

Answer:

45.375m

Explanation:

To get the distance travelled by the body we will use the equation of motion

S = ut + 1/2at²

u is the initial speed = 0m/s

a is the acceleration

t is the time = 5 seconds

We need to get the acceleration first:

According to Newton's second law,

[tex]\sum F_x = ma\\F_m - F_f = ma\\[/tex]

Fm is the moving force = Wsin theta

Ff is the frictional force = 1500N

m is the mass = W/g

m = 4000/9.8

m = 408.16kg

Substitute the given values in the formula and get the acceleration:

[tex]Wsin \theta - F_f = ma\\4000sin40^0 - 1500 = 408.16a\\2,980.45 - 1500 = 408.16a\\1,480.45 = 408.16a\\a = \frac{1,480.45}{408.16} \\a = 3.63m/s^2[/tex]

Get the required distance:

Recall that S = ut+1/2at²

S = 0(5) + 1/2*3.63*5²

S = 0+0.5*3.63*25

S = 45.375m

Hence the distance travelled by the body in 5 seconds if the force of friction is 1500N is 45.375m

Which action is not an example of work?


picking up a box off the floor


pushing a box across the floor


holding a tray in the cafeteria line


raising a barbell over your head

Answers

Answer:

option 3

Explanation:

work is said to be the ability to move an object from it initial position. therefore, holding a tray is not a work

Answer:

C

Explanation:

Picture is down below Thank you!​

Answers

I think the answer is 45 N Right

Hopefully I helped

Answer:

The answer is 45 N to the right.

Explanation:

To find the answer add 25 N and 20 N to get 45 N.

4. Lead has a density of 11.5g/cm3. A rectangular block of lead measures 7cm ×5cm×2cm.
a) Find the volume of the block of lead.
b) Find the mass of the block of lead

Answers

Answer:

a.) volume = 70cm^3

b.) mass = 805 grams

Explanation:

see the explanation in attachment.

If the distance between two objects is increased by a factor of 3 (tripled), how will this affect Fg?
1. F g increases by 9 times
2. F g decreases to 1/9
3. F g increases by 3 times
4. F g decreases to 1/3

Answers

Answer:

2. F g decreases to 1/9

Explanation:

The formula for calculating the Force of gravity between two masses separated by a distance is expressed as;

F = GMm/d² ... 1

If the distance is tripled, the new force will be;

F1 = GMm/(3d)²

F1 = GMm/9d² ... 2

Divide equation 1 by 2

F/F1 = GMm/d²÷GMm/9d²

F/F1 = GMm/d²×9d²/GMm

F/F1 = 1 * 9

F = 9F1

F1 = 1/9 F

This means that the new force decreases to 1/9

What is its rotational inertia about the meter stick in the
previous question if it is swung in a circle about one of its
ends?
STICK ABOUT
END
I= '3 mL?

Answers

Answer:

Honestly I cant understand that so please explain it someone

Explanation:

the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water. what is the weight of the stone in air?​

Answers

Answer:

4N

Explanation:

Given parameters:

Weight of stone when immersed in water  = 18N

Weight of water displaced  = 4N

Unknown:

Weight of the stone in air  = ?

Solution:

To solve this problem, we employ the Archimedes' principles.

It states that the upward buoyant force on a body is equal to the weight of the fluid displaced.

The weight of the water displaced is equal to the weight of the body.

So, the weight of the stone in air  = 4N

A planet's rotation determines the length of its day and its revolution determines the length of its year. A day on Earth is 24 hours and a year on Earth is 365 days. In contrast to Earth, a day on Venus is longer than a year on Venus. Which is the best reason for why this is so?

Answers

Explanation:

The speed of rotation of Venus is slower than that of Earth that is why a day on Venus is longerthan Earth's day. Whereas, Venus is closer to sun than Earth, this means Venus trajectory of revolution is smaller than that of Earth.Therefore, a year on Venus is shorter than Earth's year.

If a crane lifts a load of 75N to a height of 20m in 100s, what is the power of the crane?


Answers

Answer:

P = 15 [W]

Explanation:

Power is defined as the relationship between work over a certain time.

In this way we must calculate the work which is defined as the product of force by distance.

[tex]W=F*d\\W=75*20\\W=1500[J][/tex]

And the power.

[tex]P=W/t\\P=1500/100\\P=15[W][/tex]

Power given in units of watts.

The _____ deflects these winds to the right in the northern hemisphere and to the Southern Hemisphere

Answers

Answer:

Coriolis Effect

Explanation:

The Coriolis effect is responsible for the deflection of winds to the right in the Northern hemisphere and to the right in the Southern hemisphere. It is an effect that occurs because of the rotation of the earth around its axis.

The implication of this is that in areas of low pressure in the Northern hemisphere, winds tend to blow in anticlockwise direction, and in areas of high pressure, it blows in a clockwise direction. The opposite of this happens in the Southern hemisphere.

What is the difference between liquid water and water vapor?


A.) They have different arrangements of atoms in their molecules.

B.) They differ in their number and types of atoms.

C.) They are different states of the same pure substance.

D.) They are different types of chemical compounds.

Answers

Answer:

C

Explanation: Water vapor can turn into liquid water when it cools and Liquid water turns into vapor when it heats

What is the difference in
momentum between an 87.2 kg
football player running 2.87 m/s and
a 0.0520 kg bullet moving 789 m/s?

Answers

Answer:

209.236 kg · m/s

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Physics

Momentum

Momentum Formula: P = mv

P is momentum (in kg · m/s)m is mass (in kg)v is velocity (in m/s)Explanation:

Step 1: Define

m₁ = 87.2 kg

v₁ = 2.87 m/s

m₂ = 0.0520 kg

v₂ = 789 m/s

Step 2: Find Momentums

Football Player

Substitute [MF]:                    P = (87.2 kg)(2.87 m/s)Multiply:                                P = 250.264 kg · m/s

Bullet

Substitute [MF]:                    P = (0.0520 kg)(789 m/s)Multiply:                                P = 41.028 kg · m/s

Step 3: Find difference

Define equation:                    P₁ - P₂Substitute:                              250.264 kg · m/s - 41.028 kg · m/sSubtract:                                 209.236 kg · m/s

Answer:

209.236

Explanation:

Order of Operations: PEMDAS

"Please excuse my dear Aunt Sally"

Parentheses, exponents, multiplication, division, addition and subtraction

First use p=mv

Player:(plug in the data)

= 87.2*2.87

= 250.264

Bullet : (do the same)

Then subtract Bullet-Player =209.236

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