How much heat does it take to raise the temperature of 10.0 kg of water by 1.0 C?

Answer:

100 m

Explanation:

The statement best describes the primary difference between scientific investigation and technological design is Scientific investigation involves experiments, and technological design involves products. Option D

It can be said that both scientific investigation and technolgical design require problem-solving, creativity, and rigorous methods.

However, both of them have different objectives. While Scientific investigation seeks to expand knowledge and understanding of the natural world. Research involvs hypothesis testing and different experiments;

on the other hand, Technological design, wants to create or improve products, processes, or systems to meet specific needs or solve particular problems.

It can then be defined as the application of scientific knowledge for practical purposes.

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The distance travelled in that month is 870.92 miles

We'll begin by calculating the circumference of the tyre. This can be obatined as follow:

C = 2πr

C = 2 × 3.14 × 13

C = 81.64 in

63360 inches = 1 mile

Therefore,

81.64 inches = (81.64 inches × 1 mile) / 63360 inches

81.64 inches = 0.00129 mile

Distance = number × circumference

Distance = 0.00129 × 675135

Distance = 870.92 miles

Thus, the distance travelled in that month is 870.92 miles

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The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

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Some energy in a body is unavailable to do useful work. According to second law of thermodynamic, unavailable energy is quantified as the . the increase in entropy.

According to second law of thermodynamics, the heat is flowing from a hot body to colder body. This heat transfer from hot to cold, for instance, is related to nature's tendency for disorganized systems and a lack of energy available for labor.

It has been demonstrated that a system's entropy is a measurement of its disorder and the lack of energy for work.Entropy is a measurement of the amount of energy that cannot be used for labor.

Even if all kinds of energy are interconvertible and all of them can be utilized to do work, it is not always feasible to employ all of the available energy for labor, even in theory.

The study of thermodynamics is interested in this unusable energy because efforts to turn heat into work gave rise to the discipline.

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Answer: A platinum resistance thermometer

Explanation:

It is a versatile instrument for temperature measurement in the range from — 200° to 1000°C. It is used both for precision measurements of the highest accuracy and for routine industrial work.

Answer:

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Answer:

when gravitational force suddenly disappears, then only centrifugal force will be acting and velocity is tangential to the orbit and hence, the satellite will fly off tangentially with same velocity v.

Warm air from outside is pushed into the house to replace the cold air is the right answer.

A heat pump extracts heat from the cold air that is present outside the house and then transfers this warm air inside in our home. There is a compressor inside the device that uses electricity which increase the temperature of the heat that is extracted from the outside air. The heat pump can also provide cooling air by transferring warm indoor air to the outside.

So we can conclude that Warm air from outside is pushed into the house to replace the cold air is the right answer.

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Answer:

on and off

Explanation:

if there are switches, it can change if the electricity can get to the bulb or not. if it appears that there is no pathway for the electricity to get to the light bulb, it is of, if there is a pathway, its on

Answer:

2. The temperature is not rising because the heat is being used to break the connections between the molecules.

Explanation:

I remember doing this question and this is the correct answer i just know it by heart.

just trust me by the heart

Scientists can search for numerous signs of a supermassive black hole at the heart of a galaxy. Here are a few of the typical techniques astronomers employ to research supermassive black holes:

The gravitational pull of it revealed it to be dense and unmoving. There is a supermassive black hole in the centre of the Milky Way, and this was the first proof of it.

Astronomers can monitor the motion of stars close to a galaxy's centre. Supermassive black holes are most likely located at the core of an invisible entity that has a very strong gravitational attraction and the stars are orbiting it.

A supermassive black hole's gravitational pull can cause it to bend the path of light around it if it is situated between Earth and a faraway light source.

This phenomenon is known as gravitational lensing. Astronomers may see this “lensing” phenomenon and utilize it to investigate the black hole.

Therefore, Astronomers may create a thorough picture of the characteristics of a supermassive black hole at the heart of a galaxy by examining these and other observational data.

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(a) The velocity and position function of the pellet at a time , t ≥0, is (30, 30, 80) + 5t and (30, 30, 80)t + 5t² respectively.

(b) The time of flight of the pellet is 0.78 s and the range is 23.4 m.

(c) The maximum height reached by the pellet is 45.92 m.

The time of motion of the pellet is calculated as follows;

t = √(2h/g)

t = √(2 x 3 / 9.8)

t  = 0.78 second

v = u + at

v = (30, 30, 80)  + 5t

v = (30, 30, 80) + 5(0.78)

v = (30, 30, 80) + 3.9

v = (33.9, 33.9, 83.9) m/s

x = vt

x = [(30, 30, 80)  + 5t]t

x = (30, 30, 80)t + 5t²

x = (33.9 x 0.78, 33.9 x 0.78, 83.9 x 0.78)

x = (26.44, 26.44, 65.44) m

R = Vₓt

where;

R = 30 m/s x 0.78 s

R = 23.4 m

v² = u² - 2gh

where;

0 = u² - 2gh

2gh = u²

h = u²/2g

h = (30²) / (2 x 9.8)

h = 45.92 m

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The frictional force of an object is the product of the normal force and coefficient of kinetic friction. Here the frictional force acting on the object  is 16.4 N.

Frictional force is a kind of force acting on a body to resist it from motion. Thus, the direction of the force will be in negative with the magnitude. Frictional force is the product of coefficient of friction and the normal force.

The normal  force acting on the object of mass 4.2 Kg is N = mg

N = 4.2 Kg × 9.8 m/s² = 41.16 N

Frictional force = ц N

                         = 0.40 × 41.16 N

                         = 16.4 N.

Therefore, the frictional force acting between the surface of the object and the floor is 16.4 N

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Your question is incomplete. But your complete question probably was:

The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0.40 the weight of the object is 4.2 kg. What is the frictional force of the object?

Answer:

b. the electromagnetic spectrum

Explanation:

the electromagnetic spectrum contains all the forms of light, including gamma rays, x-rays, ultraviolet radiation, visible light, infrared, radio waves, microwaves, etc

Answer:

What Is Moral Subjectivism? Moral subjectivism is based on an individual person's perspective of what is right or wrong. An individual can decide for themselves that they approve or disapprove of a certain behavior, and that is what determines if the behavior is right or wrong.

Explanation:

It is given that The Moon's center is 3.9x10⁸ m from Earth's center. The moon 1.5x10⁸ km from the Sun's center. We need to find the ratio of the gravitational forces exerted by Earth and the Sun on the Moon.

The gravitational force is given by :

\(F=\dfrac{Gm_em_m}{r^2}\)

It means \(F\propto \dfrac{1}{r^2}\)

So,

\(\dfrac{F_1}{F_2}=\dfrac{r_2}{r_1}\)

r₁ = 3.9x10⁸ km

r₂= 1.5x10⁸ km

So,

\(\dfrac{F_1}{F_2}=\dfrac{1.5\times 10^8}{3.9\times 10^8}\\\\\dfrac{F_1}{F_2}=\dfrac{5}{13}\)

Hence, the ratio of the gravitational forces exerted by Earth and the Sun on the Moon is 5:13.

A prototype is the best example or representation of a concept, which is used as a design to shape a device.

A prototype can be defined as a given design in its experimental stage which is very useful to shape the framework or idea to carry out.

Therefore, with this data, we can see that a prototype can be very useful to shape an idea or concept about a given device in particular.

Complete question:

Fill in the blank. A _____ is the best example or representation of a concept.

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Explanation:

The electromagnetic spectrum is the name given to the full range of frequencies and/or wavelengths that electromagnetic phenomena may have.

Human eyes respond to a small range of wavelengths in that spectrum. That response is called sight. Because humans can see that electromagnetic energy, it is called visible light.

Over the first 16.4 m, the person performs

W = (60.0 N) (16.4 m) = 984 J

of work.

Over the remaining 6.88 m, they perform a varying amount of work according to

F(x) ≈ 60.0 N + (-8.72 N/m) x

where x is in meters. (-8.72 is the slope of the line segment connecting the points (0, 60.0) and (6.88, 0).) The work done over this interval can be obtained by integrating F(x) over the interval [0, 6.88 m] :

W = ∫₀⁶˙⁸⁸ F(x) dx ≈ 206.4 J

(Alternatively, you can plot F(x) and see that it's a triangle with base 6.88 m and height 60.0 N, so the work done is the same, 1/2 (6.88 m) (60.0 N) = 206.4 J.)

So the total work performed by the person on the box is

984 J + 206.4 J = 1190.4 J ≈ 1190 J

According to the given statement  5.50 *  10¹⁴Hz is the frequency of the incident light.

The photoelectric effect, which happens when light strikes a metal, can release electrons out of its surface. As the electrons that are expelled first from metal are known as emitted electrons, this process is also sometimes referred to as photoemission.

The following equation may be used to determine a photon's energy in terms of frequency:

E = hf

The work function must first be changed from electron volts (eV) to joules (J):

1 eV = 1.602 × 10⁻¹⁹ J

Hence, the work function is:

1.68 eV × 1.602 × 10⁻¹⁹ J/eV = 2.69 × 10⁻¹⁹ J

The emitted photon's kinetic energy is:

E = 9.60 × 10⁻²⁰ J

E = E0 + KE

where KE is the kinetic energy of the released electron and E0 is the work function.

Inputting the values, we obtain:

hf = E0 + KE

hf = 2.69 × 10⁻¹⁹ J + 9.60 × 10⁻²⁰J

hf = 3.65 × 10⁻¹⁹ J

When we solve for f, we obtain:

f = E/h = (3.65 × 10⁻¹⁹ J) / (6.626 × 10⁻³⁴ J s)

f = 5.50 × 10¹⁴ Hz

As a result, the incident light has a frequency of 5.50 *  10¹⁴Hz.

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The x and y component of the ball's final velocity are respectively 7.35 m/s and  4.90 m/s.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Given that:

Mass of the ball: M = 6.35 kg.

Initial velocity of ball: U = 8.49 m/s.

Mass of the pin at rest: m = 1.59 kg.

Final velocity of pin: v = 20.1 m/s at a -77.0° angle.

Let the x and y component of the ball's final velocity are respectively V₁ m/s and  V₂ m/s.

Appling conservation of momentum along x axis:

MU + m.0 = MV₁ + mvcos(-77.0°)

⇒ V₁ = u - (m/M) v cos(-77.0°)

After putting the values we get:

V₁ = 7.35 m/s.

Appling conservation of momentum along y-axis:

M.0 + m.0 = MV₂ + mvsin(-77.0°)

⇒ V₂ = - (m/M) vsin(-77.0°)

After putting the values we get:

V₂ = 4.90 m/s.

Hence, the x and y component of the ball's final velocity are respectively 7.35 m/s and  4.90 m/s.

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Answer:

is the fastest moving type of radiationhe

Machine 1 has the greatest mechanical advantage among the given machines. To determine the machine with the greatest mechanical advantage, we need to calculate the mechanical advantage for each machine.

Machine 1: Mechanical Advantage = Output Force / Input Force = 50 N / 5 N = 10

Machine 2: Mechanical Advantage = Output Force / Input Force = 50 N / 10 N = 5

Machine 3: Mechanical Advantage = Output Force / Input Force = 50 N / 25 N = 2

Machine 4: Mechanical Advantage = Output Force / Input Force = 50 N / 50 N = 1

Comparing the mechanical advantages, we can see that Machine 1 has the highest mechanical advantage of 10. This means that Machine 1 can multiply the input force by 10 to produce the output force. It provides the greatest amplification of force among the four machines.

Machine 2 has a mechanical advantage of 5, Machine 3 has a mechanical advantage of 2, and Machine 4 has a mechanical advantage of 1. Therefore, Machine 1 has the greatest mechanical advantage among the given machines.

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Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

where

m is the mass

f is the force

We have

\(a = \frac{275}{18} \\ = 15.277777...\)

We have the final answer as

Hope this helps you

Answer:

onsider a pulse moving through a medium - perhaps through a rope or a slinky. What happens to the pulse when it reaches the end of that medium? The answer depends on whether the medium is fixed in space or free to move at its end. For example, if the pulse is moving through a rope and the end of the rope is held firmly by a person, then it could be said that the pulse is approaching a fixed end. On the other hand, if the end of the rope is lying on the floor such that it is free to move up or down when the pulse reaches its end, then it could be said that the pulse is approaching a free end.The animation below depicts a pulse moving through a medium which is fixed at its end.

Explanation:

Answer:

WORK DONE ON A BODY IS THE PRODUCT OF FORCE IN THE DIRECTION OF DISPLACEMENT AND DISPLACEMENT.

WORK ONLY HAS MAGNITUDE AND NO DIRECTION.

FORCE applied IN the direction of displacement × displacement = POSITIVE WORK DONE

FORCE applied OPPOSITE to the direction of displacement × displacement = NEGATIVE WORK DONE

FORCE applied PERPENDICULAR to the direction of displacement × displacement = ZERO WORK DONE

hope it helps

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The formula for work done is:

\(w=Fd\)

work(measured in joules) = force(measured in newtons) * distance(measured in meters)

Answer: 13.2678 kg

Explanation: Well, 13.2678 kg is 29.25 in mass and kg.

Answer:

By having specialized instruments onboard NASA spacecrat, they do this to detect how they behave

Explanation:

I really hope this is right have a stellar day.

Answer:

3.7 m

Explanation:

ASSUMING this means extra distance beyond where the cannonball would land WITHOUT the wind assistance but in general ignoring air resistance. Hmmmmmm...tricky

The ball drops from vertical rest to ASSUMED horizontal ground 15 m below in a time of

t = √ (2h/g) = √(2(15)/9.8) = 1.75 s

Without the tail wind, the ball travels horizontally

d = vt = 68(1.75) = 119 m

The tailwind exerts a constant acceleration on the ball of

a = F/m = 12/5.0 = 2.4 m/s²

The average horizontal velocity during the flight is

v(avg) = (68 + (68 + 2.4(1.75)) / 2 = 70.1 m/s

so the distance with tailwind is

d = v(avg)t = 70.1(1.75) = 122.675 m

The extra distance is 122.675 - 119 = 3.675 = 3.7 m