the video identifies the force pair produced when an apple falls through the air. which force belongs in a free-body diagram of the apple?the video identifies the force pair produced when an apple falls through the air. which force belongs in a free-body diagram of the apple?normal forceforce of apple on earthcontact forceforce of earth on apple

Answer:

v=\(\frac{S}{t}\) = 1.43 miles/hour

2500 ft = 0.473 miles

20 min = 0.33 hour

Explanation:

The definition of speed allows you to find the answer for the speed of the scooter is:

          v = 1.42 mi / h

The velocity of a body is defined as the change in position between the time of the interval

         \(v = \frac{\Delta x}{t}\)

Where v is the velocity, Δx the change in position and t the time

They indicate that the distance is Δx = 2500 ft and the time is t = 20 min, we look for the velocity

          v = \(\frac{2500}{20}\)

          v = 125 ft / min

In the problem they indicate that the answer is given in miles per hour, let's reduce the units

       v = 125 ft / min (\(\frac{1 mile}{5280 ft}\))  (\(\frac{60min}{1h}\))

       v = 1.42 mi / h

In conclusion using the definition of speed we can find the answer for the speed of the scooter is:

          v = 1.42 mi / h

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The number of pascal equivalent to 1 inch of mercury is 3386.53 pascal

From the question given above, we were told that:

29.92 inches of mercury = 1 atm

101325 pascal = 1 atm

Thus,

29.92 inches of mercury = 101325 pascal

29.92 inches of mercury = 101325 pascal

Therefore,

1 inches of mercury = 101325 / 29.92

Thus, the number of pascal equivalent to 1 inch of mercury is 3386.53 pascal

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Answer:

false.

Explanation:

Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

The actual direction of the light rays from the sun is at an angle of incidence of 70.48°

The Sun appears to be at an apparent angle from vertical to the scuba diver at this instance. The incident sunlight rays are bent at the air-water contact and eventually reach the diver's eyes.

The angle of refraction is what the scuba diver perceives as the apparent angle.

Refractive index of air, n₁ = 1.00029

Refractive index of water, n₂ = 1.33

Angle of refraction, r = 45°

According to the Snell's formula,

n₁ sin i = n₂ sin r

sin i = n₂ sin r/n₁

sin i = 1.33 x 0.71/1.00029

sin i = 0.94

Therefore, the angle of incidence of light rays from the sun is,

i = sin⁻¹(0.94)

i = 70.48°

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Answer:

1609.3

Explanation:

Answer:

Reflected

Explanation:

I do not have much context here, but reflection is what happens when the sun sets on the water. The rays hit the surface of the water and bounce off, known as refelction.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

Andrew's dog's speed was 1.89 m/s

Explanation:

Motion at Constant Speed

An object is said to travel at constant speed if the ratio of the distance traveled by the time taken is constant.

This can be written as the formula below:

\(\displaystyle v=\frac{d}{t}\)

Where  

v = Speed of the object

d = Distance traveled

t = Time taken to travel d.

Andrew's dog run a distance of d=17 meters in a time of t=9 seconds, thus its speed was;

\(\displaystyle v=\frac{17}{9}\)

v = 1.89 m/s

Andrew's dog's speed was 1.89 m/s

Answer:

I believe the answer is B. Although it might be C.

Explanation:

I hope this helps!

The trucker’s average velocity who drives the truck along  a straight highway is 64 km/h in south.

Average velocity of a body is the ratio of displacement of a body in the given time. In case of average velocity, the displacement of the body is the same for each interval of time.

Average velocity can be calculated with the following formula.

\(\overline v =\dfrac{\Delta x}{\Delta t}\)

Here, Δx is the displacement and Δt is the change in time. The average velocity can be positive or negative.

A trucker drives along a straight highway for 0.25 h with a displacement of 16 km south.

The displacement of the truck is 16 km in the south direction, and change in time to cover this distance is 0.25 hours. Thus, the average velocity of the truck is,

\(\overline v =\dfrac{16}{0.25}\\\overline v =64 \rm\; km-h^{-1}\)

Hence, the trucker’s average velocity who drives the truck along  a straight highway is 64 km/h in south.

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Answer:

Magnification is the degree to which an object is multiplyed to get it's image.

For example if an object size is 10cm an it's image size is 20cm then the magnification is 2, that is the image is twice the size of the object.

Hope that helps

Answer:

d = 100.56 m

Explanation:

It is given that,

Force acting on the dog is 22.4 N

Angle at which the force is applied is 115 º

Work done is - 42.3 J

We need to find the distance covered by the dog. The work done by an object is given by :

\(W=Fd\cos\theta\)

d = distance covered by the dog

\(d=\dfrac{W}{\cos\theta}\\\\d=\dfrac{-42.5}{\cos(115)}\\\\d=100.56\ m\)

So, the dog moves a distance of 100.56 m.

Answer:

4.47 M.

Explanation:

I do Acellus and just got it correct!

Work Shown:

Use those values in the following kinematic equation

Vf = Vi + a*t

Vf = 10 + 3*6

Vf = 10 + 18

Vf = 28

The final velocity is 28 m/s

In the absence of friction, a force applied to a body for a given amount of time, changes the momentum of the body

The average force per unit area exerted on the passenger with no seatbelt 5,400,000 N/m²

The average force per unit area for the passenger with seat belt 18,750 N/m²

The known parameters are;

The velocity of the car, v₀ = 15 m/s

The time it takes the passenger not wearing seat belt to strike the windshield, \(t_{ns}\) = 0.03 s

Area of contact between the head and the windshield, \(A_{ns}\) = 5 × 10⁻⁴ m²

The mass of the head, \(m_{h}\) = 5.4 kg

Time taken for the passenger wearing seat belt to come to rest, \(t_s\) = 0.50 s

The mass of the passenger wearing seatbelt, \(m_s\) = 75 kg

Area of the seat belt in contact with the passenger, \(A_s\) = 0.12 m²

Required:

To find the average force per unit area exerted on the two passengers

Solution:

According to Newton's second law on motion, force is equal to the product of mass and acceleration

\(Acceleration, \overline a = \dfrac{Change \ in \ velocity}{Elapsed \ time} = \dfrac{v - v_0}{t}\)

Therefore, the acceleration, force and average force per unit area of the passenger with no seat belt;

\(Acceleration, \overline a_{ns} = \dfrac{0 - 15 \, m/s}{0.03 \, s} = 500 \, m/s^2\)

\(F_{ns}\) = \(m_{h}\) × \(\overline a_{ns}\)

Which gives;

\(F_{ns}\) = 5.4 kg × 500 m/s² = 2,700 N

Force per unit area = Force/Area

\(P_{ns} = \dfrac{2,700 \, N}{5 \times 10 ^{-4} \ m^2} = 5,400,000 \ N/m^2\)

The average force per unit area exerted on the passenger with no seatbelt, \(P_{ns}\) = 5,400,000 N/m²

\(Acceleration, \overline a_{s} = \dfrac{0 - 15 \, m/s}{0.5 \, s} = 30 \, m/s^2\)

\(F_{s}\) = \(m_{b}\) × \(\overline a_{s}\)

Which gives;

\(F_{s}\) = 75 kg × 30 m/s² = 2,250 N

Force per unit area = Force/Area

The average force per unit area, for the passenger with seat belt is therefore;

\(P_{s} = \dfrac{2,250\, N}{0.12 \ m^2} = 18, 750\ N/m^2\)

The average force per unit area for the passenger with seat belt, \(P_s\) = 18,750 N/m²

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Answer:

1) 22,240kg m/s

2) 9.26

Explanation:

1) Mass × Velocity

2) 22,240 ÷ 2400

Interference with the normal pattern of the electrical current is also referred to as arrhythmia.

Arrhythmia refers to an irregular heartbeat, meaning the heart beats too quickly, too slowly, or in an irregular manner. The heart's electrical signals are responsible for its rhythm. Arrhythmias are often caused by underlying heart disease.

These diseases include congenital heart disease, high blood pressure, coronary artery disease, heart valve disorders, cardiomyopathy, and many more. Heart disease, alcoholism, hyperthyroidism, electrolyte imbalances, caffeine consumption, smoking, and drug use can all cause arrhythmias.

Treatment for arrhythmias can range from simple monitoring to medication to surgery or pacemaker implantation.

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Answer:

B.rate of convection

Explanation:

The Sun does not expand or contract because it is in a state of hydrostatic equilibrium. That is to say, the inward force of gravity is balanced by the outward pressure from nuclear fusion. The correct answer is option C.

Hydrostatic equilibrium refers to the balancing of the inward force of gravity and the outward force of radiation pressure (or thermal pressure) in stars. The energy emitted by a star comes from the nuclear reactions that occur in its core. These reactions create an enormous amount of energy in the form of light and heat, which is carried outward to the star's surface. The heat and light create a pressure that acts to push outward on the star's matter. At the same time, the star's mass creates a force of gravity that pulls inward. The balance between these two forces is called hydrostatic equilibrium.

Hydrostatic equilibrium is essential for stars to maintain a stable size and shape. When a star is in hydrostatic equilibrium, the inward force of gravity is balanced by the outward pressure from nuclear fusion. If this balance were upset, the star would either collapse under its own gravity or expand outwards, both of which would lead to catastrophic consequences.

Therefore, the concept of hydrostatic equilibrium is critical to our understanding of how stars evolve and the role they play in shaping our universe.

Therefore, the correct answer is option C.

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Answer:

mean= sum of all values/ total no. of values

values given= 4,6,8,20,12

= 4+6+8+20+12/5

=50/5=10

HOPE IT HELPS

PLZ MARK AS BRAINLIEST

Answer:

positive. hope this helped

Given that the number of hailstones is n = 562

The mass of hailstone is m = 2 g = 0.002 kg

The speed of hailstone is v = 5.8 m/s

The time taken will be t = 92 s

The angle is

We have to calculate the force.

The force can be calculated by the formula

Substituting the values, the force will be

Answer:

E......1,800 meters

Explanation:

distance = speed × time

convert 1 min to seconds because speed is give in meters per seconds so it's which is 60 seconds

Then...60 ×30 = 1,800

Explanation:

formula is given by

h/mv

where h is 6.626 × 10 ^-34

and c = 3 × 10^8

m = mass

by plugging in the values in the formula, the de Brogile wavelength is equal to 7.6424 × 10^(-15)

would appreciate a brainliest :)

The proper subset relations that are possible using the sets of numbers n, z, q, and r are:

An improper subset comprises every element of the original set, while a valid subset only contains a fraction of the original set's numbers. A subset of a set A that is not equal to A is a proper subset of A. In other words, if B is a proper subset of A, then A has at least one element that is not in B but all of B's elements are in A.

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energy the top states in the nation for nuclear power electricity production is North Carolina. The contributions of natural gas-fired energy over the previous ten years.

nuclear energy Nuclear energy contributed for 33% of North Carolina's net generation in 2021, placing the state in the top five states for production. North Carolina was one of the top ten states in 2020 for both total annual motor fuel spending and petroleum consumption.

one of the main ways to produce energy is through the combustion of natural gas. Describe it in detail.Sunlight is the principal energy source on Earth's surface and can.As the effects of global warming worsen, North Carolina must go nuclear. Nuclear energy will become the best solution for clean, dependable, and economical electricity, and recent state legislation compels Duke Energy to dramatically cut carbon emissions by 2030.

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Answer:

b i think

Explanation:

Larry Page, real name Lawrence Edward Page, is a computer scientist and entrepreneur from the United States who co-founded Goo-gle, one of the most well-known websites on the Internet, with Sergey Brin on March 26, 1973 in East Lansing, Michigan.

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Answer:

A C E

Explanation:

got it right on edge 2021

Answer:It’s A C E

Explanation: I took the assignment and got it right :D

The land area needed to fulfill the necessity of 32.6 million population of Malaysia would be 18,460,952 m².

The land area needed to fulfill the necessity of 32.6 million population of Malaysia, assuming that all of our energy is obtained from solar by means of photovoltaic devices with an efficiency of 18% using horizontal panels, can be explained as follows:

The average energy usage per capita is 4,329 kWh. Therefore, the total energy usage for the 32.6 million population of Malaysia would be:

Total energy usage = Energy usage per capita × Population

= 4329 kWh/person/year × 32.6 million people

= 141,062,400,000 kWh/year

The average daily solar insolation is approximately of 4500 Wh/m² with the sun shining for about 10 hours per day. Therefore, the total solar energy per day per square meter can be calculated as:

Total solar energy per day per square meter = Solar insolation × Sunshine hours

= 4500 Wh/m² × 10 hours/day

= 45,000 Wh/m²/day

The solar energy generated by a photovoltaic panel is calculated as:

Solar energy generated by a photovoltaic panel = Area of panel × Solar insolation × Efficiency

The area of panel can be calculated as:

Area of panel = Energy usage per year / (Solar insolation × Efficiency × 365 days)

Therefore, the land area needed to fulfill the necessity of 32.6 million population of Malaysia is calculated as:

Land area needed = Total energy usage / (Solar insolation × Efficiency × 365 days)

= 141,062,400,000 kWh/year / (45,000 Wh/m²/day × 0.18 × 365 days)

= 18,460,952 m²

Therefore, the land area needed to fulfill the necessity of 32.6 million population of Malaysia would be 18,460,952 m².

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