In a given lightning flash, the potential difference between a cloud and the ground is 1.5 times 109 V and the quantity of charge transferred is 23.7 C. What is the decrease in energy of the transferred charge

The additional force must be added to produce equilibrium is 5 N force acting in the same direction as the 10 N force (Option A)

To have equilibrium,

Force to the left = force to the right

But

The force to the right is greater than the force to the left.

Thus,

Force to the left + additional force = force to the right

10 + additional force = 15 N

Collect like terms

Additional force = 15 - 10

Additional force = 5 N

Therefore, an additional force of 5 N acting in the same direction of the 10 N force is needed to obtain the equilibrium of the system (Option A)

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Answer:

Only (C) and (D) are true

a  = (v2 - v1) / t      since a and v are vector quantities they have the same direction

Also KE = 1/2 M v^2     describes the linear KE of an object moving with a speed of v

Also KE = F * S        where S is the displacement - the radius vector is a constant for an object moving in a circle and the centripetal force provides no change in KE

Frequency or wavelength-based distribution of all electromagnetic radiation is known as electromagnetic spectrum.

The majority of celestial bodies emit many forms of electromagnetic radiation simultaneously. What they emit depends on a variety of factors, including how hot they are and what materials they are made of.

Different telescopes are used by astronomers to find various electromagnetic spectrum components. Only one region of the electromagnetic spectrum can be detected by each type of telescope.

At radio frequencies, light pollution is more severe than at visible wavelengths.

Light pollution, often known as artificial nighttime light, is the improper or excessive use of artificial outdoor light.

Different energies of photons have a range of wavelengths, some of which are inaccessible from the Earth's surface and need different methods of collection.

As the atmosphere distorts more strongly at shorter wavelengths, telescopes must adjust.

Modern telescopes use new technologies to work more effectively and making innovative telescope designs is a task that engineers and astronomers relish.

That’s why astronomers need different telescopes at different locations to observe across the electromagnetic spectrum.

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The negative charge passes through the surface is 9 A/s

The Intrinsic property of protons and electrons are known as Electric Charge

Protons are known as positive charge

Electrons are known as negative charge

Give that

I =18A

The current is flowing to the right

The equal amount of positive and negative charges.

that is total charge is q= Q+Q=2Q. that is magnitude

Then, the rate of charge that pass though is dq/dt

Give that,

q=it

2Q=it

Let differentiate with respect to t

2dQ/dt=I

Then, dQ/dt=i/2

Since I=18A

Then, dQ/dt=18/2

dQ/dt= 9 A/s. Toward the left

9 A/s negative charge passes through the surface .

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A microwaveable cup-of-soup package needs to be constructed in the shape of a cylinder to hold 600 cubic centimeters of soup. The sides and bottom of the container will be made of styrofoam costing 0.02 cents per square centimeter. The top will be made of glued paper, costing 0.05 cents per square centimeter. Find the dimensions for the package that will minimize production costs.

h: height of the cylinder, r: radius of the cylinder

The volume of a cylinder: V=πr2h

Area of the sides: A=2πrh

Area of the top/bottom: A=πr2

The cost of packaging, C=2πrh*0.02+ πr^2*0.02+ πr^2*0.05 subject to the constraint πr^2h=600

C=πr(0.04h+.07r)  and the constraint implies h=600/ πr^2

So C=πr(24/πr^2+.07r)=24/r+.07πr^2

C'=-24/r^2+0.14πr=0

r^3=24/0.14π  r=3.79 cm

h=600/πr^2=13.3 cm

C=π*3.79*(0.04*13.3+.07*3.79)=9.48cents

C''=0.14π+48/r^3>0 for all r>=0 so our solution is indeed a minimum.

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Answer:

a woman who have responsibility of child care

Explanation:

egalitarian is one who supports equality

The characteristic that is most associated with egalitarian societies is Women have responsibility for child care.

A society is a bunch of individuals that frequently contact with one another or a significant social group that inhabits the same physical or social area and is typically under the control of the same leadership and prevailing cultural expectations. A given society may be defined as the sum of all of these interactions among its constituent members.

Society is characterized by patterns of interaction (social relations) between people who share a certain culture and institutions. In the social scientists, subgroup dominance or stratification patterns commonly occur in bigger societies. By defining certain behaviors or ideas as acceptable or unacceptable, societies create patterns of behavior. The phrase "societal norms" relates to such behavioral patterns within a particular community. Societies and their standards are continuously and changing slowly.

Women typically inherit a pair of X - chromosome from their parents, which allows them to get pregnant and give birth from adolescence until menopause. More specifically, the sex determination of the female embryo is controlled by the lack of a present or active  on either of the respective s-ex chromosomes. Female anatomy differs from male anatomy due to the female reproductive system, which consists of the ovaries, ut-erus, v-agina, and vulva. A lady is a grown-up female. Before being an adult, a woman is referred to as a girl (a female child or adolescent). 

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The density, given that the mass is 190 g and the volume is 24 cm³ is 7.92 g/cm³

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

Density = mass / volume

Density = 190 / 24

Density = 7.92 g/cm³

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When thrown from the balloon, the sandbag has a constant horizontal/forward velocity. As the text puts it, "the sandbag continues forward as if it had not been dropped." What this means is that the sandbag has no acceleration in the horizontal plane of motion, so it moves in this direction at a constant speed. So for any time [tex]t[/tex], the horizontal velocity is given by

[tex]v_x(t) = 12\dfrac{\rm m}{\rm s}[/tex]

In the vertical plane of motion, the sandbag has no vertical velocity until it's released and allowed to fall. As it's falling, however, the sandbag is being pulled down by gravity and is accelerating with magnitude [tex]g=9.8\frac{\rm m}{\mathrm s^2}[/tex], so its vertical/downward velocity at time [tex]t[/tex] is given by

[tex]v_y(t) = -gt[/tex]

So, after 3 seconds have passed, the sandbag has horizontal velocity [tex]v_x = 12\frac{\rm m}{\rm s}[/tex] and vertical velocity [tex]v_y = -g(3\,\mathrm s) = -29.4\frac{\rm m}{\rm s}[/tex]. If the question is specifically asking about speed you would just ignore the negative signs.

The tension in the rope when the gymnast climbs it at constant speed is 641.9 N.

Given:

Mass of gymnast, m = 65.5 kg

The speed 'v' of gymnast is constant

Solution:

Consider the free-body diagram of the system as shown below.

Balancing forces along the vertical axis we get:

ΣFy = 0

Thus, we get:

F = ma     - (1)

where, m is mass of gymnast

            a is acceleration of gymnast (a = 0m/s², as the speed is constant)              

Also,

F = T - mg          -(2)

where, T is tension in the rope

           g is acceleration due to gravity

Equating (1) & (2), we get:

ma = T - mg

Re-arranging the equation, we get:

T = m(a+g)

Applying values in above equation we get:

T = (65.5 kg)(0 m/s²+9.8 m/s²)

T = 641.9 N

Therefore, the tension in the rope when the gymnast climbs it at constant speed is 641.9 N.

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The length of an organ pipe is 19.48

Given,

An organ pipe that is open on both ends and has a fundamental frequency of  n1 = 8.75Hz & the speed of sound in air is v =  341m/s

we have the formula for fundamental frequency in open pipe as

       n1 = v /λ1 = v / 2L

   so  L = v / 2n1

plug in the values for L

n1 = v / λ1 = v / 2L

     L = v / 2n1

     = 341 / 2 (8.75)

    = 19.48

The length of an organ pipe is 19.48

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B is the answer

hope this helps u

:)

Answer:

40 J

Explanation:

W = (f)(d)

W = (20)(2)

W = 40 J

If a constant 20 N force is applied to a 7 kg box to push it along the ground , then the work is done by this force if the box moves 2 meters would be 40 Newton meters.

The total amount of energy transferred when a force is applied to move an object through some distance .

As given in the problem if a constant 20 N force is applied to a 7 kg box to push it along the ground, then we have to find out the work is done by this force if the box moves 2 meters ,

The work done by the force to push the box = 20 × 2

                                                                          =40 Newton meters

Thus,  the work is done by this force if the box moves 2 meters would be 40 Newton meters.              

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Answer:

B

Explanation:

Astronomers cannot use parallax to find the distance to most stars. This is because the stars are: B too close.

Answer:

Height (h)=4m so. tank is half filled the debth will be or heigth will be 4m/2 =2m

Explanation:

Acceleration deu to gravity (g)=9.8m/s^2

Density (d)=1000kg/m^3

So

P= hdg

P= 2×9.8×1000

P= 19600pa

The launch speed of a horizontally launched projectile is 13.28 m/s.

The time of motion is calculated as follows;

t = √(2h / g)

where;

t = √(2 x 19.3 / 9.8)

t = 1.98 s

X = Vxt

Vx = X/t

Vx = (26.3)/(1.98)

Vx = 13.28 m/s

Thus, the launch speed of a horizontally launched projectile is 13.28 m/s.

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If the moon orbits Earth along the exact ecliptic a total lunar and solar eclipse would occur every month.

The answer is option C.

A solar eclipse happens when the Moon passes between the sun and Earth, casting a shadow on earth that either fully or partly blocks the sun's light in some areas. This most effective takes place every so often, due to the fact the Moon does not orbit inside the specific same plane because the solar and Earth do.

The moon's route crosses the ecliptic kind two times every month, and a solar eclipse takes place while the solar happens to be there at some point during the crossing. There's a terrific hazard of this approximately once each six months.

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In order to avoid injury to driver, The force constant of this spring should be 73.82 N/m

Calculation of force constant to this spring:

Here  

vertical drop is 15 m.

mass of the car, m= 113 kg

gravitational acceleration, g= -9.8 m/s^2

spring compression before car stops, x= 3.0 m

In order to avoid injury to the driver,

we need to use Hooke's law and Newton's second law:

F(net) = F(x)

m*a=-k*x

here a=g

k= -(m*g) / x

here k is force constant of this spring

substituting the values we get,

k = -(113* -9.8) / (15)

k = 73.8266 N/m

Hence,  the force constant of this spring should be 73.82 N/m

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Answer:

1) To find the volume of the wood block, divide the mass by the density:

Volume = 583.3 g / 2.7 g/cm³

Volume = 216.24 cm³

2) To find the density of the butter, divide the mass by the volume:

Density = 319 g / 350 cm³

Density = 0.9114 g/cm³

Explanation:

Nutrients found in packed items include carbohydrates, fats and proteins and the amount of nutrients present in them is found in calories/grams.

Macronutrients are nutrients that contain calories that must be consumed in the diet to perform metabolic functions.

These macronutrients are specified in packed foods, and include proteins, carbohydrates and lipids.

Macronutrients provide 4 calories (proteins and carbohydrates) or 9 calories per gram (fats).

In conclusion, nutrients include carbohydrates, fats (lipids) and proteins and their proportions are expressed in grams.

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Answer:

The planet Jupiter completes one revolution of the sun in 362710000 seconds. Long time, right?

Explanation:

3.154x10^7=3.154x10000000=31540000

11.5x31540000=362710000

Answer:

Danny hits the water with kinetic energy of 5000 J.

Explanation:

Given that,

The Weight of Danny Diver,

F = 500 N

m*g= 500 N

He steps off a diving board 10 m above the water.

h=10 m

when Danny diver hits water he generates the kinetic energy.

We need to find the kinetic energy of the water.

Let kinetic energy is K.

K = m*g*h

Where g is acceleration due to gravity.

that g= 9.8 m/s^2

now substituting the values in above equation

K= (500) * 10

K= 5000 J

Hence,

he hits the water with kinetic energy of 5000 J.

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Pluto would be placed 39.74 feet far from the Sun.

Astronomers use the gap between Earth and the sun, which is ninety-three million miles, as a new unit of measure called the Astronomical Unit.

Map scale refers to the connection (or ratio) between the space on a map and the corresponding distance on the ground. For example, on a 1:one hundred thousand scale map, 1cm at the map equals 1km on the ground.

The distance between the earth and solar, a = around 150 million km, is defined as one Astronomical Unit (AU). The radius of the solar, the solar is around 700,000 km.

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Repetitive Transcranial Magnetic Stimulation (TMS) is the procedure that is being performed on Tommy, while he is awake.

What is Transcranial Magnetic Stimulation?

Transcranial magnetic stimulation (TMS) is a non-invasive method for mood control. It does not require the patient to be sedated and is usually performed on completely conscious patients.

Tommy sings during the procedure because the region of the brain responsible for memory and singing is stimulated by this procedure.

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The water outflow in 30 secs through 200 mm of the capillary tube is mathematically given as

[tex]Qo=1.6 \times 10^{2} \mathrm{~mL}[/tex]

[tex]\begin{aligned}\Delta P &=6660 \mathrm{~m} / \mathrm{m}^{2} \\\mu &=8.01 \times 10^{-4} \text { Pas } \\t &=30 \mathrm{~s} \\L &=200 \mathrm{~mm}=200 \times 10^{-3} \mathrm{~m} \\D &=1.5 \mathrm{~mm}=1.5 \times 10^{-3} \mathrm{~m} \Rightarrow \gamma=\frac{1.5 \times 10^{-3}}{2} \mathrm{~m}\end{aligned}[/tex]

Generally, the equation for Rate of flow of Liquid is  mathematically given as

[tex]\\$$Q=\frac{\pi r^{4} \times \Delta P}{8 \mu L}[/tex]

$$

Where dP is pressure difference r is the radius

[tex]\mu[/tex] is the viscosity of water

L is the length of the pipe

[tex]Q=\frac{\pi \times\left(\frac{1.5 \times 10^{-3}}{2}\right)^{4} \times 6660}{8 \times 8.01 \times 10^{-4} \times 200 \times 10^{-3}}[/tex]

[tex]Q=5.2 \mathrm{~mL} / \mathrm{s}[/tex]

In $30s the quantity that flows out of the tube

[tex]&Qo=5.2 \times 30 \\&Qo=1.6 \times 10^{2} \mathrm{~mL}[/tex]

In conclusion, the quantity that flows out of the tube

[tex]Qo=1.6 \times 10^{2} \mathrm{~mL}[/tex]

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The probability computed shows that we can expect 1 out of 5 clothes to be clean.

From the information given, it was stated that 20% of the clothes are clean. Therefore, the probability of clean clothes will be:

= 20% = 1/5.

Therefore, one out fo five clothes are clean.

The standard deviation will be:

= ✓npq

where,

n = 5

p = 0.20

q = 1 - 0.20 = 0.80

SD = ✓(5 × 0.20 × 0.80)

= ✓0.80

= 0.09

The distribution is close to symmetric.

The binomial distribution table will be:

0 = (0.20)^0 (0.80)^5 = 0.3277

1 = (0.20)¹ (0.80)⁴ = 0.4096

2 = (0.20)² (0.80)³ = 0.2040

3 = (0.20)³ (0.80)² = 0.0512

4 = (0.20)⁴ (0.80)¹ = 0064

5 = (0.20)^5 (0.80)^0 = 0.0003

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The complete statements are;

This is further explained below.

Generally, reflection is seen when light, heat, or sound that is reflected back by an object or surface rather than absorbed by it.

In conclusion, The full statements are as follows: Part I: Mass and Material Type For the first section, please refer to the following categories of content: To begin, let's talk about the temperature, as discussed in Part I.

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Answer:

The independent variables in Part I, the ones intentionally manipulated, are the

✔ mass and type of material

.

The independent variable in Part II, the one that is intentionally manipulated, is the

✔ type of material

.

The dependent variable for both Parts I and II, the one that you measure the response in, is the

✔ temperature

got right in edge 2022

Maximum Speed:

               v =  0.9452ω

In SHM as we know that the velocity of the particle as function of displacement from mean position is :

               v = ω √A² -x²

   Now, substituting the values  

                v = ω √(0.953)²  - (0.122)²

                 v =  ω √ 0.908209- 0.014884

                 v = ω √0.893325

                 v = 0.9452ω

     So, this is the maximum speed of the spring.

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1st

Newton's laws of motion are three basic laws of classical mechanics that describe the relationship between the motion of an object and the forces acting on it. These laws can be paraphrased as follows: Law 1. A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force.

2nd

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

3rd

His third law states that for every action (force) in nature there is an equal and opposite reaction. If object A exerts a force on object B, object B also exerts an equal and opposite force on object A. In other words, forces result from interactions.

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The cotton will fall slower than the heavy stone of same mass because of the density of the substances, which affects air resistance.

Air resistance is the action of friction that slows something moving through air.

It is worthy to note the air resistance is not dependent on the mass of an object but on the velocity and density of that object.

According to this question, a heavy stone and a cotton having same masses are dropped from certain height on the surface of the Earth.

Based on difference in densities, the cotton will fall slower than the heavy stone because the density of the stone is greater.

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Electromyography (EMG) measures muscle response or electrical activity in response to a nerve's stimulation of the muscle. The test is used to help detect neuromuscular abnormalities.

Electromyography (EMG) :

(EMG) detects the electrical activity that occurs when a muscle is stimulated by a nerve. The test is used to identify aberrant neuromuscular function. One or more tiny needles, commonly known as electrodes, are introduced through the skin and into the muscle during the test. An oscilloscope is then used to display the electrical activity that the electrodes picked up (a monitor that displays electrical activity in the form of waves). In order to hear the activity, an audio amplifier is employed. The electrical activity of muscles during rest, a light contraction, and a strong contraction is measured by EMG. At rest, muscle tissue doesn't typically create any electrical signals. A brief period of activity can be seen on the oscilloscope when an electrode is introduced, but there should be no signal beyond that.

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