A 0. 075kg object at 93 Celsius is placed in 0. 150kg water with an initial temperature of 25 celsius. The final temperature of the object and water is 29 celsius. What is the specific heat capacity of the object

Explanation:

Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

The frequency of oscillations is f = 7 Hz.

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Electrons from the charged object as conduction are the charging by contact

Conduction is indeed a method of charging by contact. In conduction, charges are transferred between two objects that are in contact with each other. When an uncharged object comes into contact with a charged object, electrons will flow from the charged object to the uncharged object, until both objects have the same charge.

In solids, conduction occurs when electrons flow through the material, moving from atom to atom. Metals, such as copper and aluminum, are good conductors of electricity because their electrons are not tightly bound to their atoms and can easily flow through the material. Insulators, such as rubber and plastic, are poor conductors of electricity because their electrons are tightly bound to their atoms and do not flow easily through the material.

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The hottest stars have a surface temperature of about 30,000 K, and the Sun has a surface temperature of about 5,800 K. the hot star radiates approximately 1094.1 times more energy than the Sun for the same small-sized area on each star's surface.

The energy radiated by a star's surface is determined by its temperature according to the Stefan-Boltzmann law, which states that the total power radiated by a blackbody is proportional to the fourth power of its absolute temperature.

Let's compare the energy radiated by the hottest star (30,000 K) and the Sun (5,800 K) for the same small-sized area on each star's surface.

The ratio of the energy radiated by the hottest star (E_hot) to the energy radiated by the Sun (E_Sun) can be calculated as:

(E_hot / E_Sun) = (T_hot / T_Sun)^4

Plugging in the values:

(E_hot / E_Sun) = (30,000 K / 5,800 K)^4

(E_hot / E_Sun) ≈ (5.172)^4

(E_hot / E_Sun) ≈ 1094.1

Therefore, the hot star radiates approximately 1094.1 times more energy than the Sun for the same small-sized area on each star's surface.

This significant difference in energy output is due to the higher surface temperature of the hot star. The Stefan-Boltzmann law shows that a small increase in temperature results in a large increase in the energy radiated by a star.

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Hi there!

\(\large\boxed{ -6.36m/s}\)

Use the equation:

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

Where m2 and v2 deal with the larger object, and m1 and v1 with the smaller object. Plug in the given values:

v2 = ?

m1 = 0.048 kg (converted)

m2 = 2.95

v1 = 391

\(v_{2} = -\frac{0.048}{2.95} *391\)

\(v_{2} = -6.36m/s\)

Answer:

Difference : Balloon framing go through from foundation to top floor while Platform do not

advantages and disadvantages

Balloon framing : It has less vertical shrinkage  ( disadvantage )

platform framing : It has more vertical shrinkage and fire stops ( advantage )

platform framing : It is easier and safer to use

Reason for platform framing :

Due to these advantages Platform framing has become a better choice

Little added fire stopping is required in platform framing because of double tap plate present which can act as as a fire stop

Steel beam/ glue laminated wood beam is preferred at foundation level because wood beam under the ground will most likely shrink over time

Explanation:

Differences : Balloon framing a form of building houses using a special kind of timber construction its studs start from the foundation and go to all the way to the last floor while in Platform framing the studs are interrupted by floor platforms ( i.e. they do not go through like in Balloon framing )

advantages and disadvantages

Balloon framing : It has less vertical shrinkage  ( disadvantage )

platform framing : It has more vertical shrinkage and fire stops ( advantage )

platform framing : It is easier and safer to use

Reason for platform framing :

Due to these advantages Platform framing has become a better choice

Little added fire stopping is required in platform framing because of double tap plate present which can act as as a fire stop

Steel beam/ glue laminated wood beam is preferred at foundation level because wood beam under the ground will most likely shrink over time

This motion of the balloon is an example of buoyancy, which is the upward force exerted by a fluid on an object immersed in it.

When the balloon is neutrally buoyant, it means that the weight of the balloon and the weights attached to it is equal to the weight of the water displaced by the balloon.

If you push the balloon down to a greater depth and then release it, the balloon will rise back up to its original position.

This is because the balloon is still partially inflated and contains air, which is less dense than water. When you push the balloon down, the water pressure compresses the air in the balloon, causing it to become smaller in size.

When you release the balloon, the compressed air expands and pushes the balloon upwards towards the surface of the water.

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Answer:

If there is no cloud (liquid water) in the parcel

Explanation:

Answer:

fjriykckangjcksktkykcjwjtjcsj

The peak pressure gradient is 36 mmHg. Thus, option B is the correct answer.

The equation is ΔP = 4v², where ΔP is the pressure drop in millimeters of mercury (mmHg) and v is the peak systolic velocity in meters per second (m/s) measured by Doppler echocardiography.

The pressure gradient is expressed as the pressure difference between two points divided by the distance between the points.

In this case, the given peak systolic velocity is 3 m/s. Substituting this value into the equation, we get: ΔP = 4(3 m/s)² = 36 mmHg

Therefore, the peak pressure gradient across the stenotic valve is 36 mmHg. This means that the pressure difference between the two sides of the valve is 36 mmHg, which can cause symptoms such as shortness of breath, chest pain, and fatigue in patients with valvular heart disease.

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Answer:

People have been aware of magnets and magnetism for thousands of years. The earliest records date back to ancient times, particularly in the region of Asia Minor called Magnesia—the name of this region is the source of words like magnet. Magnetic rocks found in Magnesia, which is now part of western Turkey, stimulated interest during ancient times. When humans first discovered magnetic rocks, they likely found that certain parts of these rocks attracted bits of iron or other magnetic rocks more strongly than other parts. These areas are called the poles of a magnet. A magnetic pole is the part of a magnet that exerts the strongest force on other magnets or magnetic material, such as iron. For example, the poles of the bar magnet shown in Figure 20.2 are where the paper clips are concentrated.

A bar magnet with paper clips attached to it.

Figure 20.2 A bar magnet with paper clips attracted to the two poles.

If a bar magnet is suspended so that it rotates freely, one pole of the magnet will always turn toward the north, with the opposite pole facing south. This discovery led to the compass, which is simply a small, elongated magnet mounted so that it can rotate freely. An example of a compass is shown Figure 20.3. The pole of the magnet that orients northward is called the north pole, and the opposite pole of the magnet is called the south pole.

Answer:

Yes, the coil of wire with current passing through it is a magnet.

Explanation:

If you were to examine the profile of a typical river, you would probably find the fastest flowing water closer to the center or thalweg the deepest part of the channel.

This is because the water flowing along the center of the channel experiences the least amount of friction with the river bed and banks, allowing it to flow more rapidly compared to the water near the edges of the channel which experiences more friction.Experience refers to the accumulation of knowledge, skills, and understanding that an individual gains through their interactions with the world around them. It includes both conscious and unconscious perceptions of sensory information, as well as emotional, cognitive, and social responses to those perceptions.Experience can be divided into two main types: subjective experience and objective experience. Subjective experience refers to the individual's personal interpretation of events and their emotional and cognitive reactions to those events.

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The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, only transformed from one form to another.

This law applies to all physical systems and is a fundamental concept in the field of thermodynamics. The first law can be expressed mathematically as:

ΔE = Q - W

where ΔE is the change in internal energy of a system, Q is the heat added to the system, and W is the work done by the system. The internal energy of a system represents the total amount of thermal, kinetic, and potential energy that is stored within it.

The first law of thermodynamics is a key principle in understanding the behavior of energy in physical systems. For example, it helps explain why energy must be input into a system to increase its temperature, and why energy is lost in the form of heat and work as a result of changes in a system's state. Additionally, the first law of thermodynamics is a critical component of many applications, such as engines, power plants, and other heat-based technologies, where energy must be converted from one form to another in order to perform useful work.

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In this case, m1/m2 equal to 8.41.

If the two aluminum disks have equal moment of inertia (I), we can use the formula for the moment of inertia of a disk: I = (1/2) * m * r^2.

For the two disks, we have:

I1 = I2 (1/2) * m1 * r1^2 = (1/2) * m2 * r2^2

Given that r2 = 2.9r1, we can substitute this into the equation:

(1/2) * m1 * r1^2 = (1/2) * m2 * (2.9r1)^2

Now, we can solve for m1/m2:

m1 * r1^2 = m2 * (2.9r1)^2 m1/m2 = (2.9r1)^2 / r1^2

By simplifying the equation, we get:

m1/m2 = (2.9)^2 =8.41

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Answer:

there yah go that's the answer

Answer:

The difference between two consecutive resonance points is always ½ a wavelength apart.

Explanation:

In both open and closed pipe resonators, the resonance points are always 1/2λ apart. (The distance to the next antinode)

When the evaporation rate of a liquid is equal to its condensation rate, the space above the liquid is in a state of dynamic equilibrium.

This means that while molecules are constantly evaporating from the liquid surface and entering the space above, an equal number of molecules are condensing and returning to the liquid phase. The molecules in the space above the liquid are in constant motion, colliding with each other and the liquid surface.

This results in a stable vapor pressure, which is the pressure exerted by the gas molecules in the space above the liquid. The magnitude of the vapor pressure depends on the temperature and the properties of the liquid.

When the temperature increases, the evaporation rate increases, and the vapor pressure also increases until a new equilibrium is reached. Similarly, a decrease in temperature leads to a decrease in both the evaporation and condensation rates, resulting in a lower vapor pressure. Overall, the space above the liquid in equilibrium is characterized by a constant vapor pressure and a balance between the evaporation and condensation rates.

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Answer:

3.67 m/s²

Explanation:

Draw a free body diagram.  There are two forces on the object:

Weight force mg pulling straight down,

and normal force N pushing perpendicular to the plane.

Sum the forces in the parallel direction.

∑F = ma

mg sin θ = ma

a = g sin θ

a = (9.8 m/s²) (sin 22.0°)

a = 3.67 m/s²

Answer: below

Explanation: Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume

Answer:

Density is defined as the amount of matter contained in unit volume of body

(a) For the first 50 m:

h1 = 0.5 x a x t12

50 m = 0.5 x 9.8 m/s2 x t12

t1 = 3.19 s

Time to fall first 50 m = 3.19 s

(b) For the full 100 m:

h2 = 0.5 x a x t22

100 m = 0.5 x 9.8 m/s2 x t22

t2 = 4.52 s

Time to fall second 50 m = t2 - t1 = 1.33 s

Dropped rocks and other objects gain speed rapidly as they fall. Velocity defines the direction in which a body or object is moving. Velocity is primarily a scalar quantity. Velocity is basically a vector quantity. Rate of change of distance.

If our planet loses gravity for even 5 seconds it means the end of life on Earth as we know it. Gravity pulls objects together. The greater the mass of an object, the stronger its gravitational pull. Any submarine you choose for skydiving should be designed with movement in mind. If the weather is cool on the day of skydiving, you should choose pants that cover the entire leg. We recommend wearing sweatpants or sweatpants.

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Answer:SI units are important because these are common to the people of the entire world, so that people from different countries can communicate with each other conveniently regarding business and science. It makes systematic use of prefixes, making it easy to express very large or very small numbers.

Explanation:

hope it helps you can answer some of my fun boring questions if you want

Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board.  . Billy will take 0.43 sec  to hit the water

The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics.

using equation of kinematics

v = u + g*t

sign convention

positive y direction (upward) = +

negative y direction ( downward )  = -

v = u - g*t

0 = 4.2 - ( 9.8 * t )

t = 4.2 / 9.8

t = 0.43 sec

Billy will take 0.43 sec  to hit the water

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Answer:

the answer is A. 4 carbon atoms, 4 hydrogen atoms, and 2 oxygen atoms

The number of atoms of each molecule of the reactants is required.

The correct option is c. 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms

The given reaction is

\(CH_4+2O_2\rightarrow CO_2+2H_2O\)

For carbon atoms

The only carbon atom is present in \(CH_4\)

So, 1 carbon atom

The hydrogen atoms are also present is \(CH_4\)

There are 4 hydrogen atoms.

The oxygen atoms present is \(2\times 2=4\)

So, the number of atoms present in the reactants are c. 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms

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A net force of 89.0 n propels a 4.00-kg model rocket. after being launched from the rest,  the rocket will be traveling at: a velocity of 44.5 m/s.

The net force of 89.0 N propels a 4.00-kg model rocket. After being launched from rest, the rocket will have an acceleration of 89.0 N/4.00-kg = 22.25 m/s².

After 2.00 seconds, the rocket's velocity will be 2.00s x 22.25m/s² = 44.5 m/s. Therefore, after 2.00 s, the rocket will be traveling at a velocity of 44.5 m/s.

To calculate this, we first need to know the net force of the rocket. This is equal to the thrust of the rocket (F = ma) multiplied by the mass of the rocket (m = 4.00 kg). We can then use this net force to calculate the acceleration of the rocket, which is equal to  

F/m = 89.0 N/4.00 kg = 22.25 m/s².

Now that we know the acceleration of the rocket, we can use this to calculate the velocity of the rocket after 2.00 s. To do this, we multiply the acceleration by the time, which in this case is 2.00 s. This gives us an initial velocity of 2.00s x 22.25m/s² = 44.5m/s.  

This means that after 2.00 s, the rocket will be traveling at a velocity of 44.5 m/s.

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Answer:

split traction

Explanation:

The magnetic field at the centre of the wire is Directed downward.

We are aware that the right-hand thumb rule may be used to determine the magnetic field's direction around a current-carrying conductor. Furthermore, we are aware that the magnetic field produced by each wire component will have a component at the loop's centre that points in a certain direction.

Now, the magnetic field in the middle of each loop point points away from you into the paper. Alternatively put, onto the aircraft. Now, we can observe that magnetic field lines in a bar magnet go from the north pole to the south pole. This area will serve as the south pole because this is where the field line enters the loop. If the flow of the stream is anticlockwise.

By using the right-hand rule at various places along the current-carrying conductor loop, we may determine the magnetic field's direction.

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It takes the boulder approximately 10.4 seconds to strike the ground.

To solve for the time it takes for the boulder to strike the ground, we can use the kinematic equation:
d = vi*t + (1/2)at^2
where d is the distance traveled (which is equal to the height of the cliff, 120m), vi is the initial velocity (which is 0 m/s since the boulder was dropped from rest), a is the acceleration due to gravity (which is the surface gravitational field of the planet, 3.6 N/kg), and t is the time it takes for the boulder to fall.
Rearranging the equation to solve for t, we get:
t = sqrt((2*d)/a)
Plugging in the values we have, we get:
t = sqrt((2*120)/3.6) = 10.4 s

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An object much more massive than Jupiter, but too small to support thermonuclear fusion is called a brown dwarf.

Brown dwarfs are often referred to as failed stars because they are too small to sustain the fusion reactions that occur in the cores of true stars.

They are typically between 13 and 80 times the mass of Jupiter and can emit some heat and light from residual energy left over from their formation, but they are not able to sustain the fusion of hydrogen into helium like a true star. Instead, they slowly cool over time, eventually becoming difficult to detect with telescopes.

Hence, An object much more massive than Jupiter, but too small to support thermonuclear fusion is called a brown dwarf.

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Answer:

11 blocks

Explanation:

distance is adding up the numbers while displacement is the difference in starting and ending points