Reading the temperature of a solution by using a thermometer is an example
of a(n)
O A. hypothesis
OB. observation
O C. inference
OD. conclusion

Answer:

D.

Explanation:

Entropy is the measurement of disorder in a system. The greater the entropy the more disorder/mess there is. Options A B and C all have organized systems so D is the only one with the least orderly scenario

Scattered over the ground represents the highest entropy of a deck of playing cards.

Entropy is a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.

Entropy is the measurement of disorder in a system. The greater the entropy the more disorder/mess there is. Options A,B and C all have organized systems so, D is the only one with the least orderly scenario

Hence, the option D is correct.

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Answer:

1. 10.5 Kg

2. s/g

Explanation:

1. Determination of the mass of gasoline

Density of gasoline = 0.7 Kg/L

Volume of gasoline = 15 L

Mass of gasoline =?

The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Mathematically, the density of a substance can be expressed as:

Density = mass / volume

With the above formula, we can obtain the mass of the gasoline as follow:

Density of gasoline = 0.7 Kg/L

Volume of gasoline = 15 L

Mass of gasoline =?

Density = mass / volume

0.7 = Mass of gasoline / 15

Cross multiply

Mass of gasoline = 0.7 × 15

Mass of gasoline = 10.5 Kg

2. Density has various units some are listed below:

I. Kilogram per litre (Kg/L)

II. Kilogram per cubic metre (Kg/m³)

III. Milligram per millilitre (mg/mL)

IV. Gram per millilitre (g/mL)

V. Gram per cubic centimetre (g/cm³)

Considering the options given in the question above, it is evident that second per gram (s/g) is not a unit of density because density is mass per unit volume.

Answer:

36g

Explanation:

Given parameters:

Number of moles of H₂O = 2moles

Unknown:

Mass of  H₂O = ?

Solution:

To solve this problem, use the expression below:

   Mass of  H₂O = number of moles x molar mass

Molar mass of  H₂O = 2(1) + 16  = 18g/mol

  Mass of  H₂O = 2 x 18  = 36g

Answer:

2 they detect radio waves

Answer:

Explanation:

The pendulum is at rest ( or balance due to the equal action of opposing forces).

Answer:

Equilimbru or maximum displacement is question.

Answer:

The diameter of the gold nucleus is 3.0 × 10⁻⁵ nm

Explanation:

The given parameter of the gold atom are;

The diameter of the gold atom = 1/6,000 × The diameter of the atom

The diameter of a gold atom = 0.18 nm

The diameter of the gold nucleus, [tex]d_{Gold -nucleus}[/tex] = 1/6,000 × 0.18 nm = 0.00003 nm

∴ The diameter of the gold nucleus, [tex]d_{Gold -nucleus}[/tex] = 0.00003 nm = 3.0 × 10⁻⁵ nm.

Answer:

Mass, m = 20000 kg

Explanation:

The force acting on the shark, [tex]F=2.5\times 10^4\ N[/tex]

Acceleration of the shark, a = 1.25 m/s²

We need to find the mass of the Shark. The force acting on an object is given by :

F = ma

m is the shark's mass

So,

[tex]m=\dfrac{F}{a}\\\\m=\dfrac{2.5\times 10^4}{1.25}\\\\m=20000\ kg[/tex]

So, the mass of the Shark is 20000 kg.

2800 m

Given

time = 80 s

average velocity = 35 m/s

Required

total distance before it broke down

Solution

Average velocity : total displacement : total time

Can be formulated

avg velocity = Δx : Δt

Input the value :

Δx=avg velocity x Δt

Δx = 35 m/s x 80 s

Δx = 2800 m

In addition, if we are asking for velocity, we must know the starting and ending points (displacement)

But if we calculate the total distance, what is written is the average speed

avg speed = total distance : total time

Answer:

dryer, scissors, ramp, axe, metal detector, rake, stairs, lid, soccer ball, and egg beater

Explanation:

btw its in that exact order plz make me brainliest

The type of simple machines which are shown in the following image include the wheel and axle, pulley, inclined plane, screw, wedge, and lever.

A simple machine is a mechanical device which is responsible for the changes in the direction or magnitude of a force. In general, simple machines can be defined as the simplest mechanisms which can use mechanical advantage to multiply force.

Simple machines which are widely used in daily works include the wheel and axle, pulley, inclined plane, screw, wedge, and lever.

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Answer:

a.ionic bond is kinds of bonds make up a formula unit of sodium chloride.

Answer:

A

Explanation:

Answer:

Effusive eruptions occur when hot, (1200oC) runny basalt magmas reach the surface. Dissolved gases escape easily as the magma erupts, forming lava that flows downhill quite easily. Effusive eruptions build up gently-sloping Shield Volcanoes like Hawaii.

Answer:

ology

Explanation:

Answer:

See Explanation

Explanation:

Given

Cyclist 1:

[tex]Distance = 40km[/tex]

[tex]Time = 2hr[/tex]

[tex]Direction = East[/tex]

Cyclist 2:

[tex]Distance = 10km[/tex]

[tex]Time = 0.5hr[/tex]

[tex]Direction = West[/tex]

The question requires options. Since none is given,  I'll answer on a general term.

First, calculate the speed of both cyclists

[tex]Speed = \frac{Distance}{Time}[/tex]

Cyclist 1:

[tex]Distance = 40km[/tex]

[tex]Time = 2hr[/tex]

[tex]Speed = \frac{40km}{2hr}[/tex]

[tex]Speed = 20km/hr[/tex]

Cyclist 2:

[tex]Distance = 10km[/tex]

[tex]Time = 0.5hr[/tex]

[tex]Speed = \frac{10km}{0.5hr}[/tex]

[tex]Speed = 20km/hr[/tex]

The following can be deduced from above:

Answer:

The amount of each gas that can dissolve in the ocean depends on the solubility and saturation of the gas in water. Solubility refers to the amount of a dissolved gas that the water can hold under a particular set of conditions, which are usually defined as 0o C and 1 atmosphere of pressure.

Explanation:

hope this helps

Answer: the motion of the air above the ocean water

Explanation:

Answer:

[tex]s_2=-806m[/tex]

Explanation:

From the question we are told that

Velocity 1 [tex]v=1.34m/s \angle west[/tex]

Distance  [tex]d=6.44km=>6440m[/tex]

Velocity 2  [tex]v_3=2.68m/s[/tex]

Velocity 3  [tex]v_3=0.447m/s \angle east[/tex]

Generally the equation for VT is mathematically given by

[tex]VT=v_1t_1 +V_2t_2[/tex]

[tex]VT=2.68(2400)-0.447t_2[/tex]

[tex]1.34t_1+1.34t_2=2.68(2400)-0.447t_2[/tex]

[tex]t_2=1804s[/tex]

Therefore

[tex]s_2=v_2t_2=(-0.447)(1804)[/tex]

[tex]s_2=-806m[/tex]

Answer:

I found it would be quadrupled if it was doubled

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. It is given by:

where

m is the mass of the object

v is its speed

From the equation, we notice that the kinetic energy is:

Directly proportional to the mass

Proportional to the square of the speed

In this problem, the initial kinetic energy of the object is

K = 100 J

Later, the speed of the object is doubled:

v' = 2v

Therefore, the new kinetic energy will be

So, we see that the kinetic energy will quadruple.

Answer:

a) [tex]m = \frac{2\cdot E_{k}}{v^{2}}[/tex], b) [tex]v^{2} = \frac{2\cdot E_{k}}{m}[/tex], c) [tex]v = \sqrt{\frac{2\cdot E_{k}}{m } }[/tex]

Explanation:

a) Translational kinetic energy ([tex]E_{k}[/tex]), measured in joules, is represented by the following expression:

[tex]E_{k} = \frac{1}{2}\cdot m \cdot v^{2}[/tex] (1)

Where:

[tex]m[/tex] - Mass, measured in kilograms.

[tex]v[/tex] - Velocity, measured in meters per second.

Now we clear the mass within the formula:

[tex]E_{k} = \frac{1}{2}\cdot m\cdot v^{2}[/tex]

[tex]2\cdot E_{k} = m\cdot v^{2}[/tex]

[tex]m = \frac{2\cdot E_{k}}{v^{2}}[/tex]

b) Now we clear the velocity squared:

[tex]v^{2} = \frac{2\cdot E_{k}}{m}[/tex]

c) Now we clear the velocity:

[tex]v = \sqrt{\frac{2\cdot E_{k}}{m } }[/tex]

The speed of sound in air is twice the temperature of the air

Answer: The speed of sound in air is twice the temperature of the air

Explanation:

Answer:

bla bla bla

Explanation:

it will give the people who answer the points or brainliest!

Answer:

True

Explanation:

Answer:

that is very much true im pretty sure

(edit I was wrong its false)

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration.

Explanation:

Answer:

★ For example, cold water has a higher density than warmer water. In Addition, water gets colder with depth because of the coldness, of the salty ocean water which sinks to the bottom of the ocean basins below the less dense water near the surface

Explanation:

Hope you have a great day :)