Imagine a place in deep space, free from all gravitational and frictional
influences. If a rock were thrown here it would continue in uniform motion until a
force acted on it. This is an example of Newton's: *
A. First Law
B. Second Law
C. Little known Fourth Law
D. Third Law

Answer:

Tyler got to his destination first. It took him 4.5 hours

Explanation:

Tyler's trip: 36 / 8 = 4.5 hrs

Mark's trip: 48 / 10 = 4.8 hrs

Answer:

D

Explanation:

The digestive system does all of these functions

all these components (and more) make up the digestive system.

if you are unsure, visit bbc bitesize for more information.

Answer:

F = 500 N

Explanation:

Given that,

Mass of an object, m = 50 kg

Acceleration of the object, a = 10 m/s²

We need to find the force exerted on the object. The force exerted on it will be given by :

F = ma

Substitute all the values, we get :

F = 50 kg × 10 m/s²

F = 500 N

So, the magnitude of the force exerted on the object is 500 N.

The average value for t- statistics is 0 if null hypothesis is true.

What is a t – statistics and null hypothesis ?

The t-test yields a t-value of 0 if the sample data precisely match the null hypothesis. The value of the t-value rises as the sample data diverge more and more from the null hypothesis.

To learn more about null hypothesis visit here:

https://brainly.com/question/25263462

#SPJ4

Answer:

The focal length of the lens when immersed in water (nwater = 1.3) is 16.67 cm.

The focal length of the lens if immersed in water (n water = 1.3) is found using the lens maker's formula. The lens maker's formula is given as:

\[\frac{1}{f} = (n - 1)\left(\frac{1}{R_1} - \frac{1}{R_2}\right)\]

Where f is the focal length of the lens, n is the refractive index of the material of the lens, and R1 and R2 are the radii of curvature of the surfaces of the lens. Focal length when the lens is immersed in water:

As given, n = refractive index of the material of the lens = 1.3. When the lens is immersed in water, the refractive index of the medium changes. Now, it becomes n' = 1.33. Thus, the lens maker's formula now becomes:

\[\frac{1}{f'} = (n' - 1)\left(\frac{1}{R_1} - \frac{1}{R_2}\right)\]

Substituting the values in the above formula we have,

\[\frac{1}{f'} = (1.33 - 1)\left(\frac{1}{10} - \frac{- 1}{- 10}\right)\]

Simplifying this we get,

\[\frac{1}{f'} = 0.3 \times \frac{2}{10}\]\[\frac{1}{f'} = 0.06\]

\[f' = \frac{1}{0.06}\]\[f' = 16.67\text{ cm}\]

To know more about focal length visit:

https://brainly.com/question/31755962

#SPJ11

Answer:

8 × the gravitational attraction

Explanation:

Hope this helps. :)

Because solid concrete is stiffer, denser, and typically warmer than air, the speed of sound in solid concrete is faster than in air.

The sound wave moves at a 340 m/s pace. D = v • t can be used to calculate the distance, giving a value of 25.5 m. Since 0.150 seconds is the round-trip distance, use 0.075 seconds for the time.

The speed at which a sound source needs move in the direction of a stationary observer in order to double the apparent frequency. 640 m s - 1.

To know more about sound visit:-

https://brainly.com/question/29707602

#SPJ1

Answer:

Explanation:

Our five-year-old, Gabriel, is a very bright, funny, charming little guy. But he still has a lot of tantrums, which we thought would be over by this age. He reacts very poorly to consequences. He will get very threatening and aggressive physically and verbally: slamming doors, hitting, and lashing out verbally. We are constantly negotiating with limit setting. When we hold to the limit, he will escalate and sometimes will have very intense tantrums that can last over 30 minutes. When he is happy, he is the most delightful child. But the second something doesn’t happen exactly how or when he wants it, he is explosive. We are totally exhausted

Beginning of double-shell fusion The core has double the mass. size and brightness grow while temperature drops.

a double-shell fire. He fuses to diamond in a shell it around carbon core when core helium fusing stops, while H fuses to He inside a shell all around helium layer. Because of a sequence of thermal pulses, the fusion rate in this double-shell burning stage never approaches equilibrium.

Whenever a star loses out of nitrogen, its core will begin to collapse once more until it temperature where carbon fusion can start. As the star burns up progressively heavier components, such as carbon, neon, oxygen, and silicon, this pattern will persist.

To know more about Double-shell fusion visit:

https://brainly.com/question/14445690

#SPJ4

The strongest proponents of the human unconscious mind's role in personality are Sigmund Freud and his followers.

Freud believed that the human psyche is divided into three parts: the conscious, the preconscious, and the unconscious. He posited that the unconscious mind is the most powerful and influential part of the psyche, containing all of the individual's repressed memories, desires, and instincts that have been banished from conscious awareness.

According to Freud's psychoanalytic theory, personality is shaped by the interplay of three fundamental structures: the id, the ego, and the superego. The id represents the unconscious and is driven by primitive instincts, such as the pleasure principle. The superego represents the conscious and is driven by moral and ethical considerations. The ego represents the conscious and preconscious and is responsible for mediating the conflicting demands of the id and the superego.

Freud and his followers believed that unconscious conflicts and unresolved issues from childhood have a significant impact on adult behavior, and that these unconscious factors must be brought to light and resolved in order for a person to achieve psychological health and well-being. While some aspects of Freud's theories have been controversial and are not supported by modern research, his ideas about the role of the unconscious in shaping personality have had a lasting impact on the field of psychology.

To know more about Sigmund Freud click here:

https://brainly.com/question/5286466

#SPJ11

Answer:

B. Electrical energy transforms into mechanical energy.

Explanation:

In the case when the wire loop transforms between the two permanent magnets in a generator so here the electrical energy turns to mechanical energy as there is a working principle behind the generator that the electrical energy would turns into mechanical energy

Therefore as per the given scenario, the option b is correct

And, the rest of the options are wrong

Answer:

Gas Solid Liquid Plasma

Explanation:

Answer:

plasma

Explanation:

plasma has charged particles and ions and electrons floating around

Answer:

work = 500*3 = 1500 J

1500J in 5 sec = 300 watts

Explanation:

Answer:

it is using the same power

Explanation:

it is using the same power because it has to move longer and a farther distance while the other one has double the power but less the distance

Answer:

the question is not correct

If the universe was infinite in both extent and age then we would expect the night sky to be uniformly bright.

The universe can be described as all of space and time including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang Theory has given the cosmological description of the development of the universe.

Space and time emerged together approximately 13 billion years ago, and the universe is expanding ever since the Big Bang. While the spatial size of the universe is unknown and we can only measure the size of the observable universe.

From further observational improvements, the Sun can be defined as one of a few hundred billion stars in the Milky Way, which is one of a few hundred billion galaxies and also many of the stars in a galaxy have planets in the universe.

According to the Big Bang theory, matter and energy initially have become less dense as the universe expanded.

Learn more about the universe, here:

https://brainly.com/question/9724831

#SPJ1

The salt concentration in the intravenous saline drip is 8.0 kg/m³.

The salt concentration in the intravenous saline drip is 8.0 kg/m³. To convert the salt concentration from g/L to kg/m³, we need to consider the units and make the appropriate conversions. Given that 1 mL (or 1 cm³) of water has the same volume as 1 cm³, we can use this equivalence to establish a relationship between mL and L:
1 L = 1000 mL
Now, let's convert the given concentration of 8.0 g of sodium chloride per liter to kg/m³:
First, we convert grams (g) to kilograms (kg): 8.0 g = 8.0 x 10^(-3) kg

Next, we convert liters (L) to cubic meters (m³):

1 L = 1 x 10^(-3) m³

Now, we can calculate the salt concentration in kg/m³:

Salt Concentration = (8.0 x 10^(-3) kg) / (1 x 10^(-3) m³) = 8.0 kg/m³

Therefore, the salt concentration in the intravenous saline drip is 8.0 kg/m³.

To learn more about intravenous saline:

https://brainly.com/question/28486754

#SPJ11

Answer: B

Explanation: I can tell the block weights more since the water went down

Answer:-37.5 m/s

Explanation:

Answer:

-37.5

Explanation:

When another light bulb is connected in series to the first, the current in the power source will remain the same, but the voltage will decrease, resulting in less light output for both bulbs.

The current in the power source will remain the same when another light bulb is connected in series. This is because the current will flow through both bulbs, dividing the same amount of current between them. When two bulbs are connected in series, each bulb has the same current running through it and so each bulb produces the same amount of light. The total resistance of the circuit will also increase as each light bulb adds resistance in series. The increase in resistance results in a decrease in voltage, thus each bulb produces less light.

To learn more about Current :

https://brainly.com/question/1100341

#SPJ11

Answer:

11.37 m/s

Explanation:

We are given;

Mass; m = 0.001 kg

Initial velocity; v1 = 0 m/s (since it was released from rest)

Initial height; h1 = 20.6m

From the attached image of the bead in the loop, we can see that height at A; h2 = twice the radius = 2R = 2 × 7 = 14 m

g = 9.8

To solve for the speed at point, we will use formula for conservation of energy. Thus;

½m(v1)² + mgh1 = ½m(v2)² + mgh2

Divide through by m to get;

½(v1)² + gh1 = ½(v2)² + gh2

Plugging in the relevant values;

½(0²) + (9.8 × 20.6) = ½(v2)² + (9.8 × 14)

Rearranging, we have;

½(v2)² = ½(0²) + (9.8 × 20.6) - (9.8 × 14)

Simplifying, we have;

½(v2)² = 64.68

Multiply both sides by 2 to get;

(v2)² = 2 × 64.68

(v2)² = 129.36

v2 = √129.36

v2 = 11.37 m/s

When you push a pencil off your desk, the energy transformation that takes place is that potential energy transforms into kinetic energy.

The correct answer to the given question is option C.

Potential energy is the energy stored within an object because of its position or configuration.

In this scenario, the pencil has potential energy because of its elevated position on the desk. When the pencil is pushed off the desk, it begins to move, which means that it has kinetic energy. Kinetic energy is the energy of motion.

As the pencil falls off the desk, its potential energy is transformed into kinetic energy, which is the energy that results from its motion. The faster the pencil falls, the greater its kinetic energy will be because kinetic energy is directly proportional to the square of an object's velocity.

Therefore, when you push a pencil off your desk, the potential energy that it has because of its elevated position is transformed into kinetic energy as it falls towards the ground.

For more such questions on energy transformation, click on:

https://brainly.com/question/28982142

#SPJ8

The statement that correctly describes the classification of chemical reactions into different categories is "All reactions fit into a category, and some reactions can fit into more than one category."

A chemical reaction is said to have occurred when the substances combine and form new substances. The substances that combined together are called reactant while the substance produced by such combination is called a product.

All reactions can be fitted into one category of the other depending on the kind of change that occur in the reaction.

However, some reactions fit more than one category. Let me give you an example. Look at the reaction; C(s) + O2 (g) ------> CO2(g).

This reaction can be viewed as a redox reaction since the oxidation numbers of the species involved in the reaction changed from left to right. On the other, we can also look at the reaction as a combustion reaction since it involves burning carbon in oxygen.

From this little example, we have seen that some reactions can fit into more than one category of reaction, hence the answer .

Learn more: https://brainly.com/question/12172040

Acceleration be a

Apply Newton's second law

\(\\ \rm\Rrightarrow F=ma\)

\(\\ \rm\Rrightarrow a=\dfrac{F}{m}\)

\(\\ \rm\Rrightarrow a=\dfrac{84}{12}\)

\(\\ \rm\Rrightarrow a=7m/s^2\)

\( \huge\bf\underline{solution}\)

Mass of given body (m) = 12Kg

Force (F) = 84.0N

We have been asked to find the magnitude of of the acceleration .

\( \huge\bf\purple{force = mass \times acceleration}\)

Put all the given value we get

\( \sf \dashrightarrow84 = 12 \times acceleration \\ \\ \sf \dashrightarrow \frac{84}{12} = acceleration \\ \\ \sf \dashrightarrow7 {ms}^{ - 2} = acceleration\)

So, the acceleration due to gravity on that planet is 7m/s² .

So Your answer is B) 7.0m/s²

Answer:

960J

Explanation:

Given parameters:

Force  = 120N

Distance = 8m

Unknown:

Work required  = ?

Solution:

The work done by a body is the force applied to move a body in a specific direction.

 Work done  = Force x distance

Insert the parameters and solve;

  Work done  = 120  x  8  = 960J

Every four years on Election day, American citizens vote for a new president:

The American electoral system is a complex process used to elect the President and Vice President of the United States. It is made up of two key components: the popular vote and the Electoral College.

The popular vote refers to the vote of the American citizens, who cast their ballots for the Presidential candidates on Election Day. The candidate who receives the most popular votes in a state wins the state’s electoral votes.

The Electoral College is made up of 538 electors, who are selected by the political parties in each state. The number of electors each state has is based on the state's population, with each state receiving a minimum of three electors.

Learn more on electoral system here: https://brainly.com/question/381249

#SPJ1

Answer:

Online means connected to a network.

Credible means reliable or trustworthy

Cite means to quote from an article or book.

The distance and velocity of one of the galaxies, the universe "started its trip about 17.23 billion years.

A galaxy redshift = 0.228

velocity = redshift × speed of light

= 0.228 × 3 × 10⁸m/s

velocity = 6.84 × 10⁷ m/s

Distance = 1050 × 3.2 × 10⁶ light years

= 1050 × 3.2 × 10⁶× 9.46 × 10¹⁵ m

= 3.17856 × 10²⁵ m

So,

Age = D/v

= 5.436 × 10¹⁷ sec

1 sec = 3.17 × 10¹⁷ sec

Age = 5.436 × 10¹⁷ × 3.17 × 10¹⁷ sec

= 17.23 billion years

Thus, according to the relationship between distance and velocity, the universe started its trip about 17.23 billion years.

Learn more about universe, here:

https://brainly.com/question/13465544

#SPJ4

The option that best answers the question is "Aggregate Investment Income (AII) is $40,000. Additional Refundable Tax (ART) is $4,264." If Corporation BBB, a public company, gave an aggregate investment income (AII) of $40,000 and additional refundable tax (ART) of $4,264.

The amount used to calculate the small business deduction would be $100,000, taxable income would be $200,000, and rental profit would be $10,000. Taxable capital gains and net capital loss carry forward would be $30,000 and $20,000, respectively. The aggregate investment income (AII) is the sum of the income received during the year from property investments, excluding business or rental income. The additional refundable tax (ART) is calculated as a percentage of AII. The ART for a year can be used to pay the regular tax on a business's active earnings.

It's calculated as a percentage of AII in excess of $50,000.

For 2021, the ART is 6.67 percent of AII over $50,000.

To know more about percentages

https://brainly.com/question/29198069

#SPJ11