The four tires of an automobile are inflated to a gauge pressure of 2.2 ✕ 105 Pa. Each tire has an area of 0.022 m2 in contact with the ground. Determine the weight of the automobile.

Answer:

B

Explanation:

no reason for this answer

Answer:

Explanation:

Yes, that is correct. Heterozygosity at the major histocompatibility complex (MHC) can increase the diversity of antigens that can be recognized by the immune system, thereby increasing the likelihood of an improved immune response to various pathogens. This is known as heterozygote advantage or overdominance, and it is thought to be one reason why genetic diversity is maintained in natural populations.

The length of the rope Leo needs to purchase will be 45.3125 ft.

Surface area is calculated for common forms such as circles, triangles, parallelograms, rectangles, trapezoids, and so on.

When a form that isn't a standard figure appears, we slice it into standard shapes to get its area. The area of those component forms is then calculated and added together.

The surface area of the prism is,35 ft²

\(\rm A_s=2\times A_b+P\times h \\\\ 35=2 \times 3 +BP \times 3.2\\\\\ 35=6+3.2 BP\\35-6=3.2BP\\\\ BP=\frac{29}{3.2} \\\\BP=9.0652\ ft\)

The length of the rope Leo needs to purchase;

L=5 ×9.0652

L=45.3125 ft

Hence,the length of the rope Leo needs to purchase will be 45.3125 ft.

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Answer:

3.1 s

Explanation:

use the quadratic formula

x = −b + √(b2 − 4ac)/2a

where a=-16 b=48 (the velocity) and c=6 (the height)

Answer:

s = 13.6 m

Explanation:

Ann is driving at a constant speed. Hence, the formula of uniform motion shall be used here. The formula for the distance traveled during uniform speed motion is given as follows:

s = vt

where,

s = distance covered by the car before it begins to slow down= ?

v = uniform speed of car = (63 km/h)(1000 m/ 1 km)(1 h/3600 s) = 17.5 m/s

t = time to react before applying brakes = 0.777 s

Therefore, using the values in the equation, we get:

s = (17.5 m/s)(0.777 s)

s = 13.6 m

Answer:

Multiply the friction factor by pipe length and divide by pipe diameter. Multiply this product by the square of velocity. Divide the answer by 2.

Explanation:

Multiply the friction factor by pipe length and divide by pipe diameter. Multiply this product with the square of velocity. Divide the answer by 2.

Hope this answer helps you

Water, which we drink, consists of hydrogen and the air we exhale is composed of carbon and oxygen. This composition can be explained by the presence of different elements and compounds.

The water we drink is composed of hydrogen and oxygen, while the air we exhale contains carbon dioxide and oxygen.

Here are the explanations for each of these terms:

Hydrogen: Hydrogen is a chemical element with the symbol H and atomic number 1. It is the lightest element on the periodic table. Hydrogen is used as a fuel source in hydrogen fuel cell vehicles.

Oxygen: Oxygen is a chemical element with the symbol O and atomic number 8. It is a highly reactive nonmetal and an oxidizing agent that readily forms oxides with most elements, as well as with other compounds. Oxygen is used in respiration to produce energy

Carbon: Carbon is a chemical element with the symbol C and atomic number 6. It is a nonmetal that occurs in many forms, including graphite and diamond. Carbon is used in the form of charcoal as a fuel source and is present in all known life forms.

Carbon dioxide: Carbon dioxide is a chemical compound consisting of one carbon atom and two oxygen atoms. It is a gas at standard temperature and pressure and is a crucial component of the Earth's atmosphere. Carbon dioxide is released into the air as a waste product of respiration.

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Explanation:

Respiration releases energy - it is an exothermic process. This means it releases heat energy.

The process which releases thermal energy is respiration.

The energy which increase the temperature is called the thermal energy.

Biomass energy is created but can not be stored. Same way, the respiration process which releases heat in form of air from nose or mouth. This process is exothermic.

Thus, Respiration releases thermal energy.

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Answer:

friction help to slow motion in other word it oppose motion, but in a frictionless environment object would move with difficult stopping point.

Explanation:

Friction acts between two surfaces in contact only and opposes the movement of one body with respect to another. Therefore friction is a force which opposes the relative motion between two bodies. If a body is moving it is slowed down by frictional force applied on it by the surface on which it is moving.

Answer:

The correct option is A

Explanation:

For a substance to boil at 1415 °C shows the substance is an electrovalent/ionic substance (hence the elements are not the answer). Electrovalent/ionic substances are characterized by high melting and boiling points. Also, with a density of 3.13 g/cm³ (with a +/- 0.1 g/cm³), the correct answer is potassium iodide. This is because potassium iodide has a density of 3.12 g/cm³ (which is - 0.1 g/cm³). It should also be noted that pure potassium iodide boils at 1,330 °C, however the presence of impurities could increase the boiling point of the salt, thus an impure potassium iodide could have a density of 3.12 g/cm³ and a temperature around 1415 °C

"Potassium iodide" would it most likely be. A further explanation is provided below.

Given values are:

Density,

Boiling point,

Density can be change by,

Uncertainty in temperature,

We can take the value of density from:

We can take the value of temperature from:

After checking the ranges, we find "Potassium iodide" have density as well as temperature in our range.

Thus the above answer is right.

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Why do metals conduct electricity?

A. The electrons in metals are inside the nuclei of the atoms.

B. All covalent bonds conduct electricity.

C. A lattice of ions allows valence electrons to move easily. ✓

D. Metals never give up electrons.

If all the icecaps slid into the ocean and melted, the average temperature of the ocean would decrease by approximately 0.28°C.

To calculate the decrease in the average temperature of the ocean when all the icecaps melt, we need to consider the heat exchange between the icecaps and the ocean.

Let's start by calculating the heat released by the icecaps when they melt. We can use the specific heat capacity formula:

Heat released = Mass of icecaps × Specific heat capacity of ice × Temperature change

Since the icecaps constitute 1.75% of the Earth's water, the mass of icecaps is 0.0175 times the total mass of water on Earth.

Assuming the icecaps have an average temperature of -28°C and melt into liquid water at 0°C, the temperature change is 0°C - (-28°C) = 28°C.

Next, we need to calculate the heat absorbed by the ocean when the icecaps melt. Using the same formula:

Heat absorbed = Mass of ocean water × Specific heat capacity of water × Temperature change

Given that the oceans constitute 97.5% of the Earth's water, the mass of the ocean water is 0.975 times the total mass of water on Earth.

Assuming the oceans have an average temperature of 4.8°C, the temperature change is 4.8°C - 0°C = 4.8°C.

Now we can calculate the change in temperature of the ocean:

Change in temperature = Heat released / (Mass of ocean water × Specific heat capacity of water)

Substituting the values, we get:

Change in temperature = (0.0175 × Total mass of water) × (Specific heat capacity of ice × Temperature change) / (0.975 × Total mass of water × Specific heat capacity of water)

The total mass of water cancels out, leaving us with:

Change in temperature = (0.0175 × Specific heat capacity of ice × Temperature change) / (0.975 × Specific heat capacity of water)

Substituting the specific heat capacities of ice and water (0.5 cal/g°C and 1 cal/g°C, respectively), and the temperature change (28°C), we get:

Change in temperature = (0.0175 × 0.5 cal/g°C × 28°C) / (0.975 × 1 cal/g°C)

Simplifying the equation, we find:

Change in temperature ≈ -0.28°C

Therefore, if all the icecaps slid into the ocean and melted, the average temperature of the ocean would decrease by approximately 0.28°C.

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The reaction of load L is 0 (no horizontal force), and the reaction of load R is 10 kN (vertical upward force).

To determine the reactions of the loads L and R, consider the equilibrium of the forces acting on the structure.

First, analyze the vertical equilibrium. The sum of the vertical forces must be zero:

ΣFy = R − 7 kN − 3 kN

ΣFy = 0

This gives:

R = 10kN

Next, analyze the horizontal equilibrium. The sum of the horizontal forces must be zero:

ΣFx = L

ΣFx = 0

This indicates that there is no horizontal force acting on the structure.

Therefore, the reaction of load L is zero (no horizontal force), and the reaction of load R is 10 kN (vertical upward force).

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Answer:

Straight Line

Light travels in straight lines called rays. Light travels "at the speed of light." This speed is about 186,000 miles per second (670 million miles per hour), or about 300,000 kilometers per second.

Have an amazing day!!

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Explanation:

I have a lot to say it was very nice to meet my parents are u doing well I dont want too its been so much I love you so I was like u know I am not a man but you are the auditions I have been in a long long long life is a triangle and a chair for me and my parents think about the way I

A computer is a programmable device that can automatically perform a sequence of calculations or other operations on data once programmed for the task. It can store, retrieve, and process data according to internal instructions. A computer may be either digital, analog, or hybrid, although most in operation today are digital. Digital computers express variables as numbers, usually in the binary system. They are used for general purposes, whereas analog computers are built for specific tasks, typically scientific or technical. The term "computer" is usually synonymous with a digital computers, and computers for business are exclusively digital.

Answer:

The core, computing part of a computer is its central processing unit (CPU), or processor. ... A computer system, therefore, is a computer combined with peripheral equipment and software so that it can perform desired functions.

Explanation:

Hope the answer was helpful

If A box of mass 210 kg is pulled from rest with a string of tension 1300n inclined at 35° to the horizontal. if the box moved with a speed of 10m/s and the frictional force between the box and surface is 100 n, Then the distance covered by the box is 10.89 meters.

To calculate the distance covered by the box, we need to analyze the forces acting on it and apply the work-energy principle.

Given:

Mass of the box, m = 210 kg

Tension in the string, T = 1300 N

The angle of inclination, θ = 35°

Frictional force, f = 100 N

Initial speed, u = 0 m/s

Final speed, v = 10 m/s

First, let's resolve the tension force into components parallel and perpendicular to the incline. The parallel component of the tension force can be calculated as:

T_parallel = T * cos(θ)

Next, let's calculate the net force acting on the box along the incline. The net force is given by:

Net force = T_parallel - f

Now, using Newton's second law, we can calculate the acceleration (a) of the box:

Net force = m * a

From the given information, we have the final velocity (v), initial velocity (u), and acceleration (a). We can use the following kinematic equation to calculate the distance covered (s):

v^2 = u^2 + 2as

Rearranging the equation, we get:

s = (v^2 - u^2) / (2a)

Now, let's plug in the given values and calculate the distance covered:

T_parallel = 1300 N * cos(35°) ≈ 1067.35 N

Net force = 1067.35 N - 100 N = 967.35 N

a = (967.35 N) / (210 kg) ≈ 4.61 m/s^2

s = (10 m/s)^2 - (0 m/s)^2 / (2 * 4.61 m/s^2) ≈ 10.89 m

Therefore, the distance covered by the box is approximately 10.89 meters.

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Answer:

Distance and Mass

Explanation:

The angle at which the light refracts when it moves from air into the crown glass is 23.3°.

Refraction is the bending of light as it passes through a medium with a different density. It occurs due to a change in the speed of light as it enters a different medium.

We can use Snell's law to solve this problem, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the refractive indices of the two media:

n1 sin θ1 = n2 sin θ2

where n1 and n2 are the refractive indices of the initial and final media, and θ1 and θ2 are the angles of incidence and refraction, respectively.

From the problem, we have:

n1 = 1.000293 (air)

n2 = 1.520 (crown glass)

θ1 = 25°

We can rearrange Snell's law to solve for θ2:

sin θ2 = (n1/n2) sin θ1

sin θ2 = (1.000293/1.520) sin 25°

sin θ2 = 0.385

Taking the inverse sine of both sides, we get:

θ2 = 23.3°

Therefore, the angle at which the light refracts when it moves from air into the crown glass is 23.3°.

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By the speed of 117.6 m/s you falling after 12.0 seconds.

Free fall formula,

v = -gt

v = velocity of free fall

g = acceleration due to gravity, Given = 9.8 m/\(s^{2}\)

t = time, Given = 12s

Put these values in formula, v = -gt

v = - 12 × 9.8

v = 117.6 m/s.

Hence, by the speed of 117.6 m/s you falling after 12.0 seconds.

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The amount the needle on the meter is deflected A. increases

This phenomenon can be explained by Faraday's law of electromagnetic induction. According to this law, when a magnetic field (created by the bar magnet) passes through a coil of wire, it induces an electric current in the wire. This induced current generates its own magnetic field, which interacts with the magnetic field of the bar magnet.

The deflection of the meter needle is a result of this induced current. When the number of coils of wire is increased, there is a greater number of wire loops for the magnetic field to pass through. This leads to a stronger induction of electric current, resulting in a larger deflection of the meter needle.

By increasing the number of coils, more magnetic flux is linked with the wire, resulting in a higher induced electromotive force (emf) and a greater current. This increased current produces a stronger magnetic field around the wire, leading to a larger deflection on the meter. Therefore, increasing the number of coils of wire enhances the magnetic field interaction, resulting in an increased deflection of the meter needle. Therefore, Option A is correct.

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Answer:

Explanation:

  a )

from lens makers formula

\(\frac{1}{f} =(\mu-1)(\frac{1}{r_1} -\frac{1}{r_2})\)

f is focal length , r₁ is radius of curvature of one face and r₂ is radius of curvature of second face

putting the values

\(\frac{1}{1.8} =(1.38-1)(\frac{1}{.5} -\frac{1}{r_2})\)

1.462 = 2 - 1 / r₂

1 / r₂ = .538

r₂ = 1.86 cm .

= 18.6 mm .

b )

object distance u = 25 cm

focal length of convex lens  f  = 1.8 cm

image distance  v   = ?

lens formula

\(\frac{1}{v} - \frac{1}{u} = \frac{1}{f}\)

\(\frac{1}{v} - \frac{1}{-25} = \frac{1}{1.8}\)

\(\frac{1}{v} = \frac{1}{1.8} -\frac{1}{25}\)

.5555 - .04

= .515

v = 1.94 cm

c )

magnification = v / u

= 1.94 / 25

= .0776

size of image = .0776 x size of object

= .0776 x 10 mm

= .776 mm

It will be a real image and it will be inverted.

Answer:

250 m

Explanation:

Refer to the attachment for the graph. Here, we are asked to calculate the distance travelled.

⇒ Area under the graph = Distance travelled by the body

Area of trapezium = ½ × Sum of parallel sides × Height

\( \twoheadrightarrow \quad \sf {S = \dfrac{1}{2}\times (AD + BC) \times OC} \\ \)

\( \twoheadrightarrow \quad \sf {S = \dfrac{1}{\cancel{2}}\times (10+30) \times \cancel{10}} \\ \)

\( \twoheadrightarrow \quad \sf {S = 1\times 50 \times 5} \\ \)

\(\twoheadrightarrow \quad \boxed{\red{\sf{ S = 250 \; m}}}\\\)

❝ Therefore, distance travelled by the body is 250 m. ❞

Answer:

All electromagnetic waves travel at the same speed in a vacuum

Explanation:

All the wave listed in the question are electromagnetic waves. The speed of electromagnetic waves (collectively called light) in a vacuum is fixed. Its value is 3×10^8 ms^-1. This is a constant for all electromagnetic waves irrespective of their frequency.

Hence for any electromagnetic wave, its speed is 3×10^8 ms^-1, this will be the common velocity of all the electromagnetic waves listed in the question in a vacuum thus we can not rank them according to speed.

Answer:

\( \huge\mathfrak\pink{Hope \: it \: helps}\ \)

The example of projectile is a basketball being shot by Steph Curry.

Projectile is any object propelled through space by the application of a force.

Projectile is used to describe any object that is cast, fired, flung, heaved, hurled, tossed, or thrown. For example, when a ball is thrown straight upward, or kicked.

In projectile motion, gravity is the only force acting on the object. This doesn’t necessarily mean that other forces do not act on it, just that their effect is minimal compared to gravity. The path followed by a projectile is known as a trajectory.

Other examples of projectile is as follows:

Therefore, it can be said that a basketball being shot by a renowned basket baller into the air is an example of projectile.

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Answer:

The value is  \(r = 5.077 \ m\)

Explanation:

From the question we are told that

   The  Coulomb constant is  \(k = 9.0 *10^{9} \ N\cdot m^2 /C^2\)

   The  charge on the electron/proton  is  \(e = 1.6*10^{-19} \ C\)

    The  mass of proton \(m_{proton} = 1.67*10^{-27} \ kg\)

    The  mass of  electron is  \(m_{electron } = 9.11 *10^{-31} \ kg\)

Generally for the electron to be held up by the force gravity

   Then    

       Electric force on the electron  =  The  gravitational Force

i.e  

            \(m_{electron} * g = \frac{ k * e^2 }{r^2 }\)

         \(\frac{9*10^9 * (1.60 *10^{-19})^2 }{r^2 } = 9.11 *10^{-31 } * 9.81\)

         \(r = \sqrt{25.78}\)

         \(r = 5.077 \ m\)