Some students in a Chemistry lab conducted an investigation in which they added four different solid substances to separate beakers of water. They stirred the mixtures for one minute and then recorded their observations in the table below.


Which most likely caused a new substance to be formed when mixed with water?

A. Substance 1
B. Substance 2
C. Substance 3
D. Substance 4

The reason behind circular motion at constant speed is not a natural state of motion is centripetal acceleration acting on it.

Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.

A natural state of motion is that motion where object moves with constant velocity and no acceleration. As  in circular motion of  an object at constant speed, a constant centripetal acceleration remains, this is not a natural state of motion.

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Answer:

36.165 ft/s^2

Explanation:

Omnicalculator

Given the force exerted on the object with the given mass, the acceleration of the object is 5m/s².

Given the data in the question;

Acceleration; [tex]a =\ ?[/tex]

To determine the acceleration of the mass, we use Newton Second Law of Motion:

[tex]F = m * a[/tex]

Where m is mass of the object and a is the acceleration.

We substitute our given values into the equation and solve for "a"

[tex]10.0N = 2.0kg * a\\\\10.0kg.m/s^2 = 2.0kg * a\\\\a = \frac{ 10.0kg.m/s^2}{2.0kg}\\\\a = 5m/s^2[/tex]

Therefore, given the force exerted on the object with the given mass, the acceleration of the object is 5m/s².

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Answer:

The cyclist takes 10 seconds to accelerate to 12 m/s.

Explanation:

Constant Acceleration Motion

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

[tex]v_f=v_o+at[/tex]

Solving for t:

[tex]\displaystyle t=\frac{v_f-v_o}{a}[/tex]

The cyclist starts from rest (vo=0) and moves at vf=12 m/s with an acceleration [tex]a=1.2\ m/s^2[/tex].

Calculate the time:

[tex]\displaystyle t=\frac{12-0}{1.2}[/tex]

[tex]\displaystyle t=\frac{12}{1.2}[/tex]

[tex]\boxed{t=10\ sec}[/tex]

The cyclist takes 10 seconds to accelerate to 12 m/s.

Answer:

The same charges repel and different charges attract

Explanation:

+ and + repel

- and - repel

+ and - attract

- and + attract

Answer:

About 50 ft.

Explanation:

There is a danger any time you take your eyes off the road. There is also a danger of distraction before and after a sneeze.

Hoped this helped!! <3

Answer:

A controlled variable does not change during a experiment

Explanation:

it's c

Answer:

the Answer is c. The Controlled Variable

Hope this helps!! (:

Explanation:

I just took the quiz and got it right!

Answer:

The shortest time is 1.2 sec

Explanation:

Given that,

Distance = 30 m

Speed = 25 m/s

Acceleration = 4 m/s²

We need to calculate the shortest time

Using formula of time

[tex]t=\dfrac{d}{v}[/tex]

Where, d = distance

v = velocity

Put the value into the formula

[tex]t=\dfrac{30}{25}[/tex]

[tex]t=1.2\ sec[/tex]

Hence, The shortest time is 1.2 sec.

Answer:

rusting is a chemical property because it is irreversible it changes the identity of a substance

Answer:

C. chemical property

Explanation:

a chemical property of iron is that it is capable of combining with oxygen to form iron oxide，the chemical name of rust

Answer:

I would say the first one.

A: They can heat and cool an indoor space.

Explanation:

Reversible heat pumps are capable of providing both heating and cooling processes using the same two environments. When heating, they use the external pipes to absorb heat and release that heat into the indoor environment. When cooling, they absorb the heat from indoors and release that heat into the outside environment.

Answer:

A

Explanation:

Answer:

Music has an important place in our lives.

Answer:

His average speed is through 4-6.

Explanation:

Because if you divide them both by 5 you get 4 and 6.

Answer:

Explanation:

Thank you ☺️☺️

Answer:

what

Explanation:

Answer:

Explanation:

To find the distance covered we use the formula

From the question

velocity = 7 m/s

time = 23 s

We have

distance = 7 × 23

We have the final answer as

Hope this helps you

Answer:

A

Explanation:

Chemical is a reaction between 2 things signs of that would be a new color, a new substance formed, or any sign of bubbles/smoke etc. while physical changes are done on purpose such as ripping a paper or cutting a log in half! hope that helped

Answer:

well im not gonna give the full answer but the hint im going to give is tht u can use a calculator

Explanation:

Answer:

A i think tell me if i got it right

Explanation:

Based on the location on the periodic table, Potassium (K) is the metal that will be less reactive than rubidium and more reactive than calcium.

Answer:

two poles

Explanation:

Answer:52.5

Explanation:

You pull a sled with a package on it across a snow-covered flat lawn. If you apply a force of 65.1 N to the sled, it accelerates at 1.24 m/s2. The combined mass of the package and the sled m = 52.50 kg

The given data to find Mass,

The force applied to the sled, F = 65.1 N

Acceleration of the sled, a = 1.24 m/s²

Forces are defined by both strength and direction.

Force is a vector quantity. It is a quantity that is described by Magnitude and Direction. The strength of a force is its magnitude and the direction, well it is the direction the magnitude is applied on the object.

We need to find the combined mass of the package and the sled. Let it is m. Using definition of force as follows :

F = ma

m = F/a

m = 65.1 /1.24

Mass, m = 52.5 Kg.

If you apply a force of 65.1 N to the sled, it accelerates at 1.24 m/s2. The combined mass of the package and the sled m = 52.50 kg

Hence, Option C is the correct answer.

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Answer:

6.6 Meters = 660 Meters

Explanation:

1 Meter = 100 Centimeters

Answer:

a. 10 hours

b. Approximately 4.03 km/h to shore

Explanation:

The width of the English Channel at the narrowest point = 35 km

The speed of the current across the English Channel across the narrowest point = 2 km/h

a. The relative velocity of the swimmer north to south = 3 km/h

Therefore, the the time it would take the swimmer to swim north to south will be given as follows;

Time = Distance/Velocity = 35 km/(3.5 km/h)  =10 hours

The time it would take = 10 hours

It would take 10 hours for her to cross the 35 km distance

b. Given that she has a relative velocity of 3 km/h north to south, we have;

The magnitude of her relative velocity to shore = √((Her relative velocity north to south)² + (The velocity of the English Channel east to west)²)

∴ The magnitude of her relative velocity to shore = √(3.5² + 2²) = (√65)/2 km/h

The magnitude of her relative velocity to shore ≈ 4.03 km/h

Answer:

Explanation:

Givens

d= 20 m

vi = 0

vf = 9 m/s

a = ?

Equation

vf^2 = vi^2 + 2 * a * d

Solution

9^2 = 0 + 2*a*20

81 = 2*a * 20

81 = 40*a

a = 81/40

a = 2.025

Answer:

D=m/v

Explanation:

1.37kg/1.3899m cube

0.9927kg meter cube

Answer:

hi I am Manasi

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Answer

nbbbbbbbbbbbbbbbbbbbsn

Answer:

a ecology

Explanation
L nathaliedog

Answer:

200/67.1224321241 = 2.97962981482 hours to travel 200 miles.

Hope this helps :)

Explanation:

First, convert the speed of the bus back to km/h so it makes things easier. The bus is going at an unreasonably high seed of 108 km/h and will usually result in a crash caused by the driver being unable to control the bus at such high speeds, even it won’t topple over at an inclination of 28 degrees for double decker buses (when the bus is stationary. If the prototypes can’t meet this requirement, the prototype fails the safety test and won’t be used as a bus for carrying passengers).

If you ignore that problem, we will start to do the calculation. 108 km/h is equal to 67.1224321241 mph, so it would take 200/67.1224321241 = 2.97962981482 hours to travel 200 miles.

2.97962981482 hours is equal to 2 hours, 58 minutes, 46 seconds, 667 milliseconds, 333 microseconds and 352 nanoseconds.

Here is the list of descending order of time magnitude of smaller than one second for extra information.

Decisecond = 0.1 second (one tenth)

Centisecond = 0.01 second (one hundredth)

Millisecond = 0.001 second (one thousandth)

Microsecond = 0.000001 second (one millionth)

Nanosecond = 0.000000001 second (one billionth)

Picosecond = 0.000000000001 second (one trillionth)

Femtosecond = 0.000000000000001 second (one quadrillionth)

Attosecond = 0.000000000000000001 second (one quintillionth)

Zeptosecond = 0.000000000000000000001 second (one sextillionth)

Yoctosecond = 0.000000000000000000000001 second (one septillionth)

Planck time = 0.00000000000000000000000000000000000000000001 second

Planck time is the smallest measurable time interval in theory.