why do living beings and machine need energy?​

Answer:

The mass of object is 300g.

Its weight on earth is W×0.3kg×9.8m/s2=2.94 N

Its weight on moon is A 300 g would be 48 g on the moon

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The equation of the normal line is y = - 2x + 3

We know that,

The equation of normal line given of the curve is given by

( y - \(y_{1}\) ) = m ( x - \(x_{1}\) )

Given that,

Equation of curve is y = \(\sqrt{x}\)

Equation of the line parallel to the normal line of curve is 2x + y = 1

The slope of normal is same as that of the line parallel to it. So,

2x + y = 1

y = - 2x + 1

On differentiating both sides by x,

dy / dx = - 2

which is the slope of normal line

To find slope of the curve,

y = \(\sqrt{x}\)

y = \(x^{1/2}\)

dy / dx = 1/2 x

which is the slope of the curve.

Since the curve and its normal line is perpendicular,

\(m_{1} m_{2}\) = -1

-2 * 1/2 x = -1

x = 1

At x = 1,

y = \(\sqrt{1}\) = 1

The point is ( 1 , 1 )

The equation of normal line given of the curve is

( y - \(y_{1}\) ) = m ( x - \(x_{1}\) )

y - 1 = - 2 ( x - 1 )

y = - 2x + 3

Therefore, The equation of the normal line is y = - 2x + 3

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Answer:

b

Explanation:

The calculate the total distance traveled by a particle on [0, Ï], we need to find the absolute value of the area under the velocity curve. This is because distance is the magnitude of displacement, which can be negative or positive depending on the direction of motion, but the area under the curve represents the total magnitude of the motion.

The start by finding the antiderivative of the velocity function v(t) = -sin (t - Ï/4) ∫v(t) dt = ∫-sin (t - Ï/4) dt = cos (t - Ï/4) + C
Next, we the antiderivative at the bounds of integration cos(Ï) - cos (0 - Ï/4) = cos(Ï) - cos(Ï/4) Finally, we take the absolute value of the difference between the two evaluated antiderivatives to get the total distance traveled:
|cos(Ï) - cos(Ï/4) | This is the answer to the question, expressed in 200 words. The total distance traveled by a particle on [0, Ï], given that the velocity is v(t) = -sin (t - Ï/4), is |cos(Ï) - cos(Ï/4) |. We find the total distance traveled by taking the absolute value of the difference between the antiderivative of the velocity function evaluated at the bounds of integration. This approach works because distance is the magnitude of displacement, which can be negative or positive, but the area under the curve represents the total magnitude of the motion.

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Velocity is the speed as well as direction of motion of an object. In other words, one can say that the velocity is the rate of change of position of an object.

Velocity is the dimensional speed of a moving artifact as an inkling of its rate of change in position as observed from a specific frame of reference and measured by a specific time standard.

Speed is the rate at which an object moves along a path in time, whereas velocity is the rate and direction of movement. In other words, velocity is a vector, whereas speed is a scalar value.

The velocity of an object is its speed as well as its direction of motion. In other words, velocity is the rate at which an object's position changes.

Thus, this way, the velocity and position of object relates with each other.

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Marginalized individuals, including people with disabilities and those who identify as LGBTQ+, can experience significant impacts due to trauma, discrimination, negative attitudes, and exclusion. These factors contribute to physical and psychological harm, hinder access to opportunities and resources, and perpetuate systemic inequalities.

Marginalized individuals, such as people with disabilities, face unique challenges that can exacerbate the impact of trauma, discrimination, negative attitudes, and exclusion. Trauma experienced by individuals with disabilities may result from direct incidents or from the effects of living in a society that is not fully inclusive. Discrimination and negative attitudes towards people with disabilities can lead to social isolation, limited employment prospects, and reduced access to healthcare and education. This exclusion can have long-lasting effects on their mental health, self-esteem, and overall well-being. Similarly, individuals who identify as LGBTQ+ may also face trauma, discrimination, negative attitudes, and exclusion. LGBTQ+ individuals often encounter higher rates of bullying, harassment, and violence due to their sexual orientation or gender identity. These experiences can lead to psychological distress, anxiety, depression, and even post-traumatic stress disorder (PTSD). Discrimination and exclusion from healthcare, housing, employment, and social support systems further compound the challenges faced by LGBTQ+ individuals, hindering their ability to thrive and fulfill their potential.

In both cases, the impacts of trauma, discrimination, negative attitudes, and exclusion are far-reaching. They can contribute to a cycle of disadvantage, limiting opportunities for personal growth, social participation, and economic advancement. Recognizing and addressing these issues is essential for fostering a more inclusive society that supports the needs and rights of marginalized groups, empowering individuals to overcome the barriers they face and promoting their overall well-being.

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Answer:

9.8 meters per second squared

Explanation:

Answer:

9.8 meters per second squared

Explanation:

edge

The constant G in Newton's equation makes the units of measurement consistent was measured by Newton shows gravity to be a relatively huge force produces equilibrium makes the units of measurement consistent.

The three fundamental laws of classical mechanics known as Newton's laws of motion describe how an object's motion and the forces acting on it interact.

Newton's first law, an object will not change its motion unless a force acts on it.

Newton's second law, the force on an object is equal to its mass times its acceleration.

Newton's third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

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We hear 0.003 beats per second.  

The beats per second (BPS) can be calculated using the formula:

BPS = (wavelength of first fork - wavelength of second fork) / 2 * frequency of first fork

where the wavelength of the first fork is 34.50 cm and the wavelength of the second fork is 33.88 cm.

First, we need to find the frequency of the first fork:

frequency of first fork = speed of sound in air / wavelength of first fork

speed of sound in air = 343 m/s

wavelength of first fork = speed of sound in air / frequency of first fork

wavelength of first fork = 343 m/s / 2000 Hz

wavelength of first fork = 0.1715 meters

Therefore, the frequency of the first fork is 2000 Hz.

Next, we can find the beats per second:

BPS = (0.1715 meters - 0.1655 meters) / 2 * 2000 Hz

BPS = 0.006 meters / 2 * 2000 Hz

BPS = 0.003 beats/s

Therefore, we hear 0.003 beats per second.  

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(a) The centripetal acceleration (a) if the radius is doubled without changing the particle's speed is 3.4 m/s².

(b) The centripetal acceleration (a) if the speed is doubled without changing the circle's radius is 27.2 m/s².

(a) The centripetal acceleration is given by the formula a = v²/r, where v is the speed and r is the radius of the circle.

If the radius is doubled (2r) without changing the speed, the centripetal acceleration becomes a' = v²/(2r).

Since the speed remains the same, the numerator v² remains constant. However, the denominator doubles, resulting in the centripetal acceleration being halved.

Therefore, a' = a/2 = 6.8 m/s² / 2 = 3.4 m/s².

(b) Again using the formula a = v²/r, if the speed is doubled without changing the radius, the new speed becomes 2v.

Plugging this into the formula, we get a' = (2v)²/r = 4v²/r.

Comparing this with the original formula, we can see that the centripetal acceleration is quadrupled.

Therefore, a' = 4a = 4 * 6.8 m/s² = 27.2 m/s².

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Answer:

3

Explanation:

just did it

Answer:

holla at me!!!!!!!!!!????

A longitudinal wave makes up the second wave. The two waves will have traveled the same distance after 10 seconds since they are both longitudinal waves. Option a is Correct.

In the graphic below, an earthquake wave is depicted: An earthquake's second wave simultaneously emerges from the epicenter. They are in particular to blame for the terrible noises that follow powerful earthquakes. These waves move along the path of wave travel at a speed of around 5 miles per second, causing the crustal rock to shake.

These waves in a solid medium might either be longitudinal waves or transverse waves. P waves (for "principal" waves) denote longitudinal or compressional seismic waves through bulk material, whereas S waves denote transverse seismic waves ("secondary" ). Option a is Correct.

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Correct Question:

A wave produced by an earthquake appears in the diagram below:

A second wave leaves the center of an earthquake at the same time. The second wave is a longitudinal wave. After 10 seconds, will the two waves travel the same distance?

answer choices

a. Yes, because both waves are longitudinal waves.

b. Yes, because all waves travel at the same speed in similar mediums.

c. No, because only one type of wave can travel through a medium at a time.

d. No, because transverse waves travel at different speeds than longitudinal waves.

The  magnitude and direction of the force on the charge​ is -12 N opposite the electric field

To calculate the force on a charge in an electric field, we make use of the formula below.

Formula

F = E×Q .......................... Equation 1

Where:

From the question,

Given:

Substitute these values into equation 1

Note: The negative sign indicates that the force is in the direction negative of the electric field.

Hence, The  magnitude and direction of the force on the charge​ is -12 N opposite the electric field

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Answer: A edge 202694020

Explanation:

An electric field is defined along the x-axis by the function then if g=1.5m and h=6m, then v(g)-v(h) = 7768.40V.

When charge is present in any form, a point in space has an electric field that is connected to it.

The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field.

Each location in space where a charge exists in any form can be considered to have an electric field attached to it. The electric force per unit charge is another name for an electric field. The electric field’s equation is given as E = F / Q.

E = + 5 x^4 x^n

Also, E = -x^n r/rx (v)

⇒ 5 x^4 x^n = -x^n r/rx (v)

⇒ v = - ∫ 5 x^4 dx

⇒ v = -5 x^5/5

⇒ v = - x^5 v

So, v(g) - v(h) = - (1.5)^5 + (6)^5

= -7.59375 + 7776

=7768.40 V

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Answer:

mjm

Explanation:

What happens to most bones when we break theAlways include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.

Answer:

The answer is below

Explanation:

The efficiency of a machine is the ratio of its output to its input. The efficiency shows how effective the machine by the way it converts the input energy into work. The higher the efficiency of the machine the more effective it is. The efficiency is usually less than 1.

Given that the machine uses diesel oil (input) that can produce 3.0 x 10⁹ J of energy while the work performed by the machine (output) is 2.7 x 10⁸ J. The efficiency is given as:

Efficiency = output / input = 2.7 x 10⁸ J / 3.0 x 10⁹ J = 0.09 = 9%

This means that the machine is not effective because of its low efficiency

Answer:

3/2 m/s^2

Explanation:

a= v-u\t

= 30-22/4

=6/4

=3/2 m\s^2

HOPE THIS WORKS..

The elements with the largest atoms are found in the bottom row of the periodic table, specifically in the seventh period.

In the periodic table, elements are arranged in order of increasing atomic number. Each period represents a new energy level or shell that electrons occupy. As we move from left to right across a period, the atomic radius generally decreases because the increasing positive charge of the nucleus pulls the electrons closer. However, when we move down a group, or column, the atomic radius increases because new energy levels are added.

The seventh period of the periodic table is the largest in terms of the number of elements it contains. This period includes elements such as francium (Fr), radium (Ra), and uranium (U). These elements have the largest atomic radii in their respective periods due to the addition of new energy levels as we move down the group. The increase in atomic size is primarily attributed to the increase in the number of electron shells, which results in a greater distance between the nucleus and the outermost electrons. Therefore, the elements in the seventh period of the periodic table have the largest atoms.

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Answer:

Explanation:

Greetings!!!

weight= 1.0kg

Extension (x)= 0.25m

spring constant (k)= 50.0N/m

Acceleration= ?

\(firstly.recall \: the \: hooks \: law\)

\(substitute \: known \: varabiles \: into \: the \: equation\)

\(solve \: for \: force\)

\(secondly \: reall \: the \: newtons \: second \: law\)

\(substitute \: known \: variables \: into \: the \: equation \: \)

\(solve \: for \: acceleration \: \)

Hope it helps!!!

Sally drove from New York to Washington and back again. The distance between New York and Washington is 490.91 miles.

The average speed is = Distance/time,

x/50 + x/60 = 18

6x/300 + 5x/300 = 18

11x / 300 = 18

11x = 18 × 300

11x = 5400

x = 5400 / 11

x = 490.91 Miles.

Hence, the distance between New York and Washington is 490.91 miles.

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Answer:

2

Explanation:

Answer:

Bacteria

Fungi

Viruses

Parasites

A metallic chain is hanging at the rear side of a gasoline truck to prevent the build-up of static electricity.

When a gasoline truck is in motion, the friction between the air and the truck can generate static electricity. This static electricity can be dangerous because it can cause a spark, which could ignite the gasoline and cause a fire or explosion.

The metallic chain hanging at the rear side of the truck is designed to ground the truck and dissipate the static electricity, preventing the build-up of a dangerous charge. This is an important safety measure that helps to prevent accidents and protect both the truck and its cargo.

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Initial velocity,u = 0 m/s

Final velocity,v = 24 m/s

Distance covered,s = 56 m

Calculate the acceleration ( a ) .

According to the third equation of motion,

\( \bf \: {v}^{2} = {u}^{2} + 2as\)

★ Substituting the values in the third equation of motion:

\( \sf \implies \: {(24)}^{2} = {(0)}^{2} + 2 \times a \times 56\)

\( \sf \implies \: 576 = 112a\)

\( \sf \implies \: a = \dfrac{576}{112} \)

\( \sf\implies \: a = 5.14 \: m {s}^{ - 2} \)

Answer:

When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. ... In addition, gas molecules leaving the liquid remove thermal energy from the liquid. Therefore the temperature of the liquid remains constant during boiling.

Answer:

nice

Explanation:

The temperature of a volume of air is 0 degrees Celsius. The temperature of an equivalent volume of air that is twice as hot is (D) 273 degrees C.

This is due to the fact that the absolute temperature scale, or 273.15 Kelvin (K), converts 0 degrees Celsius to K. The temperature of an identical volume of air would be twice as hot as the air at 0 degrees Celsius, or 2 times 273.15 K, or 546.3 K.

However, we must deduct 273.15 from the Kelvin temperature in order to convert this temperature back to degrees Celsius. This is so because the Celsius scale is based on the 273.15 K and 373.15 K freezing and boiling temperatures of water, respectively.

The temperature is 273.15 degrees Celsius, which is the same as the freezing point of water in Celsius, when we subtract 273.15 from 546.3 K. Consequently, 273 degrees Celsius is the right response.

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