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(science)

Answer:

BRAINLIEST PLSSSSSSSSSSSSSSSSSSSSSSSS

Thermodynamics

Explanation:

Thermodynamics is the study of energy. First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another.

Answer:

8.5

Explanation:

To the nearest tenth of a year, it would take around 9.1 years when calculate compoundly for the account's worth to reach $20,600.

A loan or investment's initial principal as well as any accrued interest from earlier periods are both taken into account when calculating compound interest.

To resolve this issue, we can apply the compound interest formula:

A = P(1 + r/n)nt

where:

When A = $20,600, we need to determine t. Since we are aware that the initial investment would double after seven years, we can use the following formula to determine the yearly interest rate:

2 = (1 + r/n)^(nt)

If n is 1/7 (since the investment twice once every 7 years), 2 is the factor by which the investment doubles, and t is an unknown.

When we simplify this equation, we obtain:

t log(1 + r/7) = log(2)

When we solve for r, we get:

r = 7[(2^(1/t))-1]

Now that we have P, r, n, and A, we can enter them into the compound interest formula to find t:

$20,600 = $8,900(1 + r/1)^(1t)

2.318 = (1 + r)^t = log (2.318) / log (one plus r)

t is equal to log(2.318)/log(1 + 7[(2(1/t))-1]).

We can iteratively solve for t using a calculator, beginning with a first guess of 7 years (because the investment doubles every 7 years):

r = 0.0998 and A = $17,800 for t = 7 years

r = 0.0909 and A = $19,397 for t = 8 years.

r = 0.0833 and A = $20,416 for t = 9 years.

r = 0.0823 and A = $20,601 (closest to $20,600) for t = 9.1 years

As a result, it would take the account's value to reach $20,600 in around 9.1 years (to the nearest tenth of a year).

Therefore, when calculated compoundly, it would take approximately 9.1 years for the account's value to reach $20,600, to the nearest tenth of a year.

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Answer:

larger

Explanation:

just trust me

The smaller the mass of an object, the smaller its inertia, because the inertia of any object is directly proportional to the mass of the object

The ability of an object to resist changes in motion is known as inertia. The amount of inertia is directly related to an object's mass; in fact, as we frequently observe, the heavier an object is, the harder it is to change its direction of motion.

A straightforward illustration: While it is relatively simple to stop a tennis ball that has been thrown in our direction, we are aware that it is more difficult to stop a large truck that is moving in the same direction at the same speed. This is because the truck has a much higher mass than the tennis ball and a higher moment of inertia. As a result, inertia rises as mass does.

Since the inertia of any object is directly proportional to its mass, the smaller its mass, the less inertia it will have.

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Answer:

42a. Ammeter 2 = 0.20 A

42b. Ammeter 3 = 0.20 A

42c. The current will remain the same i.e unchanged.

43. Equivalent resistance is 11780 Ω

46a. 11 V

46b. 7.5 V

46c. 18.5 V

47. 1.70 A

Explanation:

42a. Determination of ammeter 2

Ammeter 1 = 0.20 A

Ammeter 2 =?

Since the resistors are in series connection, the same current will pass through them. Thus, ammeter 2 will read 0.20 A.

Ammeter 2 = ammeter 1 = 0.20 A

42b. Determination of ammeter 3

Ammeter 1 = 0.20 A

Ammeter 3 =?

Since the resistors are in series connection, the same current will pass through them. Thus, ammeter 3 will read 0.20 A.

Ammeter 3 = ammeter 1 = 0.20 A

42c. Since the resistors are in series connection, the same current will pass through them. Therefore, the current will remain the same.

43. Determination of the equivalent resistance.

We'll begin by converting 1.1 KΩ and 10 KΩ to Ω. This can be obtained as follow:

1 KΩ = 1000 Ω

Therefore,

1.1 KΩ = 1.1 KΩ × 1000 Ω / 1 KΩ

1.1 KΩ = 1100 Ω

1 KΩ = 1000 Ω

Therefore,

10 KΩ = 10 KΩ × 1000 Ω / 1 KΩ

10 KΩ = 10000 Ω

Finally, we shall determine determine the equivalent. This can be obtained as follow:

Resistor 1 (R₁) = 680 Ω

Resistor 2 (R₂) = 1100 Ω

Resistor 3 (R₃) = 10000 Ω

Equivalent Resistance (Rₑq) =?

Rₑq = R₁ + R₂ + R₃

Rₑq = 680 + 1100 + 10000

Rₑq = 11780 Ω

Thus, the equivalent resistance is 11780 Ω

46a. Determination of the voltage across 22 Ω

Current (I) = 0.50 A

Resistor (R₁) = 22 Ω

Voltage (V₁) =?

NOTE: the current is the same since the resistor are in series connection.

V₁ = IR₁

V₁ = 0.5 × 22

V₁ = 11 V

46b. Determination of the voltage across 15 Ω

Current (I) = 0.50 A

Resistor (R₂) = 15 Ω

Voltage (V₂) =?

NOTE: the current is the same since the resistor are in series connection.

V₂ = IR₂

V₂ = 0.5 × 15

V₂ = 7.5 V

46c. Determination of the voltage of the battery.

Voltage 1 (V₁) = 11 V

Voltage 2 (V₂) = 7.5 V

Battery voltage (V) =?

V = V₁ + V₂

V = 11 + 7.5

V = 18.5 V

47. Determination of the current.

We'll begin by calculating the equivalent resistance. This can be obtained as follow:

Resistor 1 (R₁) = 22 Ω

Resistor 2 (R₂) = 4.5 Ω

Equivalent Resistance (R) =?

R = R₁ + R₂

R = 22 + 4.5

R = 26.5 Ω

Finally, we shall determine the current.

Voltage (V) = 45 V

Resistance (R) = 26.5 Ω

Current (I) =?

V = IR

45 = I × 26.5

Divide both side by 26.5

I = 45 / 26.5

I = 1.70 A

Answer:

C

Explanation:

Not A because mammals cant get rabies. Defenently not polio. I think C is the best answer. Lyme disease is caused by ticks, so no.

Answer:

although commons their deposits can dense

Answer: Decreases in mass cause decreases in kinetic energy due to the aforementioned positive relationship between the two. Therefore when mass is decreased, an increase in kinetic energy is possible if velocity increases.

Answer:: Decreases in mass cause decreases in kinetic energy due to the aforementioned positive relationship between the two.

Explanation:

Energy can be converted from one form to another. Examples: Gasoline (chemical) is put into our cars, and with the help of electrical energy from a battery, provides mechanical (kinetic) energy. ... Similarly, purchased electricity goes into an electric bulb and is converted to visible light and heat energy.

Answer:

Explanation:

Energy transformation is when energy changes from one form to another.  While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation. For example, Electricity goes into an electric bulb and is converted to visible light and heat energy.

Hope this helped!!!

Answer:

The force required will be "300 N".

Explanation:

The given values are:

Mass of object,

m = 300 kg

Acceleration,

a = 1 m/s

Now,

The force will be:

⇒  [tex]F=m\times a[/tex]

On substituting the values, we get

⇒      [tex]= 300\times 1[/tex]

⇒      [tex]=300 \ N[/tex]

Answer:

The correct answer is NONE the two forces must be equal and of opposite direction, the closest answer is D

Explanation:

In this exercise it is indicated that Jack pushes a car, it is desired that Jill pushes the car so that the speed is constant

take as positive the direction of Jack's thrust

             F_jack - F_jill = 0

              F_jill = F_jack

therefore the push of the two must be equal and Jill's push must have the opposite direction to Jack's push.

The correct answer is NONE the two forces must be equal and of opposite direction, the closest answer is D

Answer:

positive to negative.

Answer:

a person pushes a 125 kg

Explanation:

The total translational kinetic energy of the object is 122.5 J.

Kinetic energy is defined as the energy possessed by a body by virtue of its motion.

Here,

Mass of the object, m = 125 kg

The final velocity of the object, v = 1.4 m/s

It is given that the object was initially at rest on a frictionless surface. When the object was pushed by the person, it gained some amount of kinetic energy and ended up with a final velocity of 1.4 m/s.

So, the expression for total translational kinetic energy of the object is given by,

KE = KEf + KEi

KE = 1/2m(v² + u²)

Since, the object was initially at rest, the initial velocity,

u = 0

Therefore, the kinetic energy of the object,

KE = 1/2 mv²

KE = 1/2 x 125 x (1.4)²

KE = 122.5 J

Hence,

The total translational kinetic energy of the object is 122.5 J.

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Answer:

The answer of this is question is A.

Answer:

A.

Explanation:

sana makatulong po ❤❤

Answer:

Doubled

Explanation:

F = (kq1q2) / r^2

F and q (Either q1 or q2) are directly proportional, so double the charge would also double the electruc force between the charges.

Answer:

1) x rays

Explanation:

Honestly Gamma rays has the Highest frequency, but in your options, gamma rays is not among, so x rays has the highest frequency among your options.

by Manshow

Answer:

The answer is (X-rays)

number 1

Answer:

The answer is "The frequency of the sound waves increases".

Explanation:

Its most oscillating their frequency waves, therefore higher the vibration we hear. However you see, sound frequency is determined through the oscillation of electrical signals while moving to our ears, which implies that perhaps the audio medium, which usually is air, makes a distinction between compression to spreading. It's the end of the communication as the frequency rises.

Answer:

the answer is c I thought

Answer:

q = 1

Explanation:

Given that,

No. of electrons = -12

No. of protons = 13

We need to find the net charge on the balloon. We know that net charge is equal to the sum of proton and the electrons such that,

Net charge = No. of electrons + no. of protons

= -12 + 13

= 1

So, the net charge is equal to 1.

Answer:

photosynthesis

The air that enters human lungs contains about 21 percent oxygen. The process responsible for producing most of the Earth's oxygen is known as photosynthesis. In this process, plants and certain other organisms convert sunlight into oxygen and other products.

Explanation:

Hope it helps! Correct me if I am wrong!

I'm sure about my answer!

If you dont mind can you please mark me as brainlest?

Its ok if you don't want to!

But i hopefully it helps you!

Answer:

Photosynthesis I think

Explanation:

Answer:

A. The path of least resistance.

Explanation:

ur welcome again ;)

An electric current will always follow the path of least resistance. So, the right option is a.

In inverse relation to the resistance of the pathways, electric current follows every available paths.

The voltage and resistance of the path in the electric circuit affect the amount of electric current that flows through the circuit.

The quantity of electric current flowing through the circuit is inversely proportional to the resistance in the circuit.

Assuming a fixed voltage, the current increases with decreasing resistance. The current decreases in accordance to the level of increasing resistance.

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Answer:

Real answer is im sorry if im wrong

Explanation:

A 53°

The value of the angle Θ will be 51.3°. Option C is correct.

It is concerned with the geometry, region, and density of various 2D and 3D shapes.

From snell's law;

[tex]\rm n= \frac{sini}{sinr} \\\\ 0.8= \frac{sin(90-\theta)}{sin \theta} \\\\ 0.8= cot \theta \\\\ \theta= cot^{-1} (0.8)\\\\ \theta =51.3^0[/tex]

The value of the angle Θ will be 51.3°.

Hence,option C is correct.

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Calculate V1 and V2 ( V = voltage )

Given that Vs = 16V, R1 = 330Ω, and R2 = 470Ω

Given that,

.°.

V1&V2↷

=> 330Ω + 470Ω =800Ω

Vˢ= IRᵀ

[tex]I= \frac{16}{800} = > \frac{1}{50}[/tex]

= 1/50 Ampere

Now,

V1 = IR

[tex]v1 = \frac{1}{50} \times 330 = > 6.6 \: Volt\ \\ v2 = \frac{1}{50} \times 470 = > 9.4 \: Volt[/tex]

______

Hope it helps

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Letter B

without a medium, there is nothing to compress, hence, no wave. A fast- medium like a gas (air) is easy to compress and allows waves to move through it easily. a slow medium, like a liquid, is still pretty fast, but not as fast as air.

Answer:

the second picture

Explanation:

Answer: second picture

Explanation:

(it was right on my gizmo sheet)