Inertia is the natural tendency of every object to resist change to either speed or direction. Describe a way in which you observe this in your everyday life.

Answer:

A turndra B rainforest

Explanation:

The magnitude of the force of gravity that is acting on the objects is  1.33 × 10^−10 N.

We know that the gravitational force is an attractive force that acts on all the objects that do exist in the universe. Thus, once  body lies within the gravitational field of the earth this force of gravity can be said to act on the object. We have in the question two objects that are positioned on the cartesian coordinates as shown. The distance between the objects is 2 m.

Using the formula;

F = Gm1m2/r^2

F = gravitational force

G = gravitational constant

m1  and m2 = masses of the objects

r = distance of separation

Then we have;

F = 6.6726 × 10^−11 * 4 * 2/(2)^2

F = 1.33 × 10^−10 N

Thus the attractive force has a magnitude of  1.33 × 10^−10 N.

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Answer:heating it

Explanation:

Answer:

Heating it

Explanation:

i took the k12 test and got a A

Answer:

the reaserch I have says that thermal pollution

Answer:

Air moves from the areas of higher temperature to areas of lower temperature.

Explanation:

this is because hotter temperatures seek out colder temps.

hope this helped!

When a teacher opens a window on a cold day. the room starts to feel cooler because air moves from the areas of higher temperature to areas of lower temperature.

The transfer of heat between two bodies by currents of moving gas or fluid is known as convective heat transfer. In free convection, air or water rises and is replaced by a cooler parcel of air or water as it moves away from the hot body.

As air moves from the areas of higher temperature to areas of lower temperature, when the teacher opens a window on a cold day, the air in the room moves out side and cold air takes the position inside the room. So, it feels cooler then.

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Answer:D.Compound

Explanation: internet

The net force exists 0 when the forces are in equilibrium. They have the same impact as if there were no forces at all.

Net Force, which is essentially the total of all the forces operating on an item, is the combination or consequence of those forces.

The total of all forces exerted on an object is known as the net force. A mass can accelerate due to net force. A body is subject to another force whether it is at rest or in motion. When there exists a lot of forces acting on a system, the term "net force" exists employed.

Equal in size and directed in the opposite direction, balanced forces are. When forces are evenly distributed, motion remains unchanged. One of your scenarios from the previous section involved pushing or pulling an object with the equal amount of force in opposite directions.

The complete question is:

Directions: Answer each question by circling the correct choice. After you have completed all of the questions, color the picture using the assigned colors.

Question

Choice A

1. The sum of all forces acting on an object is known as...

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Answer: 18 5.0 012

Explanation:

Answer: impulse is a certain amount of force you apply for a certain amount of time to cause a change in momentum

Explanation:

In physics, the impulse is defined as the change in the momentum of an object. Momentum is a measure of an object's motion and is equal to the product of its mass and velocity.

The formula for impulse is: Impulse = Force x time

Impulse has units of Newton-seconds (N-s) in the SI system. When an object experiences an impulse, its velocity changes, which can result in a change in its speed, direction, or both.

Impulse is important in the study of collisions, where it can be used to determine the amount of force required to change the velocity of an object.

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you can use formula:

\(\tt N_t=(\dfrac{1}{2}^n)N_o\\\\N_t=final\:mass\\\\N_t=initial\:mass\\\\n=number\:of\:half-life\)

Input the value:

\(15=120(\dfrac{1}{2}^n)\\\\\dfrac{15}{120}=\dfrac{1}{2}^n\\\\\dfrac{1}{8}=\dfrac{1}{2}^n\\\\\dfrac{1}{2}^3=\dfrac{1}{2}^n\Rightarrow \boxed{\bold{n=3\:half-lives}} \)

The magnitude of the boat’s acceleration while it travels 12.0 m is b. 2.5 \(ms^{-2}\)

u= 9.5 \(ms^{-1}\)

v= 5.5 \(ms^{-1}\)

s= 12 m

From the given data we can use,

\(v^{2} -u^{2} =2as\)

to calculate acceleration.

\(v^{2} -u^{2} =2as\),

Where,

v is the final velocity,

u is the initial velocity,

a is the acceleration and

s is the distance covered.

Substituting the values we have,

\(v^{2} -u^{2}\)= 2×a×s

\((5.5)^{2}\) - \((9.5)^{2}\)= 2 ×a×12

a= \(\frac{(5.5)^{2} -(9.5)^{2}}{(2)(12)}\)

a= \(\frac{(30.25)^{2} -(90.25)^{2}}{(24)}\)

a=\(\frac{-60}{2000}\)

a=-2.5 \(ms^{-1}\)

(The negative sign says that it is a negative acceleration  )

Therefore the magnitude of the boat's acceleration is -2.5 \(ms^{-1}\)

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cut the square and make it a triangle

The question addresses the stability of the atmosphere and the factors that determine convective stability or instability. It also explains the difference between the adiabatic lapse rate of dry air and wet saturated air.

a) The stability of the atmosphere is determined by the temperature profile and relative densities of the air cell and atmosphere. If the temperature of the surrounding atmosphere decreases with altitude at a rate greater than the adiabatic lapse rate of the air cell, the atmosphere is considered convectively stable.

In this case, the air cell will return to its original position. Conversely, if the temperature of the surrounding atmosphere decreases slower than the adiabatic lapse rate of the air cell, the atmosphere is convectively unstable. The air cell will continue moving in the same direction.

b) The adiabatic lapse rate refers to the rate at which temperature decreases with altitude for a parcel of air lifted or descending adiabatically (without exchanging heat with its surroundings). The adiabatic lapse rate of dry air is higher (around \(9.8^0C\) per kilometer) compared to the adiabatic lapse rate of wet saturated air (around 5°C per kilometer).

This difference arises because when water vapor condenses during the ascent of saturated air, latent heat is released, reducing the rate of temperature decrease. A diagram can illustrate the difference between the two lapse rates, showcasing their respective slopes.

c) When wet unsaturated air rises from the ocean surface, its temperature decreases at a rate equal to the dry adiabatic lapse rate. However, if the ambient lapse rate (temperature decrease with altitude) is higher than the adiabatic lapse rate for dry air, a temperature inversion layer forms at higher altitudes.

In this inversion layer, the temperature increases with altitude instead of decreasing. A schematic diagram can depict the temperature changes of the wet air in comparison to the ambient temperature, showing the inversion layer.

Cumulus clouds form at the altitude where the rising moist air reaches the level of the temperature inversion layer. These clouds are formed due to the condensation of water vapor as the air parcel cools to its dew point temperature.

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Analyzing two-dimensional projectile motion is done by breaking it into two motions: along the horizontal and vertical axes.

hope it helps!!

Answer:

up and down

Explanation:

this is because they do have the correct flagellum to move to the left and to the right

Answer:

Gas is on top of oil

Explanation:

Gas is less dense ( smaller density ) than oil which is more dense. Since density is directly proportional to mass and inversely proportional to volume, gas will occupy a larger space than oil.

The larger space occupied is the space above the mixture of oil and gas, hence gas is above oil

To determine how far a marble will travel before stopping in water at 20°C, we can consider the balance between the drag force acting on the marble and its kinetic energy. The drag force is determined by the viscosity of water, the size of the marble, and its velocity. The kinetic energy depends on the mass and velocity of the marble. By equating the drag force to the kinetic energy, we can solve for the distance traveled.

The drag force can be calculated using the formula:
F = 6πηrv
The kinetic energy of the marble is given by:
KE = (1/2)mv^2

6πηrv = (1/2)mv^2

We can solve this equation for the distance traveled by rearranging it as:
d = (1/2)mv^2 / (6πηr)

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For you to feel pressure on your skin, mechanoreceptor neurons are required.

The Pacinian corpuscles Pacinian corpuscles, like the ones shown in the bright field light microscopy image, are sensitive to pressure (touch) and high-frequency vibration.

Mechanoreceptors are sensitive to many physical alterations, including as touch, pressure, vibration, and stretch.

These sensors are capable of picking up feelings like pressure, vibration, and texture. Meissner's corpuscles, Pacinian corpuscles, Ruffini's corpuscles, and Merkel's disks are the four types of known mechanoreceptors whose sole purpose is to detect indentations and vibrations of the skin.

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An electrically charged object can be used to attract any object with an opposite charge.

This is due to the fundamental principle that opposites attract and repel in physics.

Electric charge is a fundamental property of matter that gives rise to electromagnetic interactions. An electric charge, whether positive or negative, produces an electric field that surrounds it. This field exerts a force on any other charge in its vicinity that is either attracted to or repelled from it. Electric charge is a fundamental property of matter that produces a variety of electric phenomena. When the charge is concentrated in a localized region of space, the object is electrically charged. When there is a net accumulation of charge in an object, it becomes electrically charged. An electrically charged object produces an electric field in its vicinity, which exerts a force on other charged objects. An electrically charged object can be used to attract objects with an opposite charge or repel objects with the same charge.

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The specific heat of pure water is 4.184 J/g °C. A 10.00-gram sample of pure water goes from 22.00°C to 32.00°C. The specific heat of pure water is 4.184 J/g °C. A 10.00-gram sample of pure water goes from 22.00°C to 32.00°C. sample gain  418.4 J. Therefore correct option is B.

To calculate the amount of heat gained by the sample of water, we can use the formula:

q = m × c × ΔT

where q is the amount of heat gained, m is the mass of the sample (in grams), c is the specific heat of water (in J/g °C), and ΔT is the change in temperature (in °C).

Plugging in the values given in the question, we get:

q = 10.00 g × 4.184 J/g °C × (32.00°C - 22.00°C)
q = 10.00 g × 4.184 J/g °C × 10.00°C
q = 418.4 J

Therefore, the answer is B. 418.4 J.

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Answer: For the angles below 40, The air time and range are directly proportional meaning that if air time increases, the range increases. Like said earlier, the total traveled distance in the x-direction depends on the initial velocity and time.

Answer:

Explanation:

It apply on how you will protect the egg because you protect the egg at all cost. It's very similar on who is protecting you, You need someone to be there for you always because an egg can't survive on it's own. Just like your life your can't be always rolling around like an egg you need to be safe and always with the person who cares for you. An egg is safe when they are together in a tray just like family and friends.

Answer:

Explanation:

the average speed of the object is 6.67 m/s

Answer:

Car A has a velocity of 40 km/hr  west.

Explanation:

The velocity of an object is a vector quantity. It has both magnitudes as well as direction.

Arrows are used to show direction.

Car A is moving towards west. Car B is moving towards east-south direction. Car C is moving towards South direction. Car E is moving towards North direction.

So, the correct option is (a) i.e. Car A has a velocity of 40 km/hr  west.

The salt concentration in the Dead Sea is approximately 332,000 parts per million (ppm).

The concentration of salt in the Dead Sea can be expressed in parts per million (ppm), which indicates the number of salt particles per million parts of water. To calculate the concentration in ppm, we need to convert the ratio of salt to water into a decimal fraction.

Given that the Dead Sea contains 332 grams of salt per 1000 grams of water, we can convert this to a decimal fraction by dividing 332 by 1000:

332/1000 = 0.332

This means that the Dead Sea has a salt concentration of 0.332.

To convert this concentration to ppm, we multiply the decimal fraction by 1 million:

0.332 * 1,000,000 = 332,000 ppm

Therefore, the salt concentration in the Dead Sea is approximately 332,000 parts per million (ppm).

It's worth noting that this is an estimate, and the actual salt concentration in the Dead Sea may vary slightly.  

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Answer:

The radius of the slave piston​ = 14.10 cm

Explanation:

The formula to apply here is that for pressure where ;

Pressure = Force / Area

F₁ /A₁ =F₂/A₂    where ; F₁=200 N  , A₁= 25 cm² , F₂ =5000 N ,A₂ =?

Apply values in the equation as ;

200/ 25 = 5000/ A₂

A₂ = 625 cm²

Formula for area is ;

A = πr²  

625 = π * r²

625/π = r²

√625/π =r

14.10 cm = r

Answer:

(I)W=18×10³ J

(ii) P=720W

Explanation:

30 Bricks = 1brick weight× 30 Bricks

30 Bricks= 12×30

=360N

Distance=50m

Time= 25s

1. Work done= Force× Distance

=360×50

= 18×10³ J

2. Power= Work done/ Time

18×10³/25

Power= 720W.

For me personally, Newton's third law of motion are ubiquitous in everyday life. For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.

The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

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