A uniform disk that has a mass ????=0.700 kgM=0.700 kg and a radius ????=0.270 mR=0.270 m rolls up a ramp of angle theta=59.0∘θ=59.0∘ with initial center-of-mass speed ????CM=4.20 m/s.vCM=4.20 m/s. If the disk rolls without slipping, what distance ΔxΔ⁢x up the ramp does it go?

It will take the bug a time of 3.5 seconds to travel 7 meters across a floor at a speed of 2 m / s

v = d / t

v = Velocity

d = Distance

t = Time

v = 2 m / s

d = 7 m

t = d / v

t = 7 / 2

t = 3.5 s

Velocity is the rate of change of distance at a given amount of time. It is denoted by v.

Therefore, it will take the bug 3.5 seconds

To know more about velocity

https://brainly.com/question/19979064

#SPJ1

Kinetic energy is the energy that an object possesses due to its motion. Hence, the correct option is [109.5 J].

The formula to calculate kinetic energy is KE = 1/2 mv², where m is the mass of the object and v is its velocity or speed. In this question, the wagon wheel is a ring of mass 77.1 kg and radius 0.630 m. The wagon is moving at 1.22 m/s. We have to calculate the total kinetic energy of the wheel.The velocity of the wagon can be converted into the angular velocity of the wheel by using the formula v = wr. The angular velocity w is calculated as:w = v/rw = 1.22 m/s ÷ 0.630 m ≈ 1.936 rad/sNow that we know the angular velocity of the wheel, we can calculate its total kinetic energy using the formula KE = 1/2 Iw², where I is the moment of inertia of the wheel. For a ring-shaped object, the moment of inertia is given by I = mr².KE = 1/2 Iw²KE = 1/2 (mr²) (w²)KE = 1/2 (77.1 kg) (0.630 m)² (1.936 rad/s)²KE ≈ 109.5 J. Therefore, the total kinetic energy of the wagon wheel is approximately 109.5 J. Note: As per the question, the total kinetic energy of the wheel is required, not of the wagon.

to know more about Kinetic energy visit:

https://brainly.com/question/999862

#SPJ11

The maximum kinetic energy but not the work function, we can conclude that the statement is True.

The kinetic energy of emitted electrons in the photoelectric effect is given by the equation:

KE = hf - φ

Where KE is the kinetic energy, h is Planck's constant, f is the frequency of the incident light, and φ is the work function of the material (the minimum energy required to remove an electron from the surface).

To calculate the maximum kinetic energy, we need to convert the given wavelength of 360 nm to frequency using the equation:

c = λf

Where c is the speed of light and λ is the wavelength. Rearranging the equation, we get:

f = c / λ

Plugging in the values, we have:

f = (3.00 × 10^8 m/s) / (360 × 10^(-9) m)

f ≈ 8.33 × 10^14 Hz

Now, we can calculate the maximum kinetic energy using the equation:

KE = hf - φ

The energy of a photon is given by:

E = hf

Where E is the energy of the photon. We know that 1 electron volt (eV) is equal to 1.6 × 10^(-19) joules. Converting 1.15 eV to joules:

KE = (1.15 eV) × (1.6 × 10^(-19) J/eV)

KE ≈ 1.84 × 10^(-19) J

Now, we can calculate the maximum kinetic energy:

KE = (8.33 × 10^14 Hz) × (6.63 × 10^(-34) J·s) - φ

1.84 × 10^(-19) J = (8.33 × 10^14 Hz) × (6.63 × 10^(-34) J·s) - φ

Since we are given the maximum kinetic energy but not the work function, we can conclude that the statement is True.

To know more about kinetic energy visit:

brainly.com/question/999862

#SPJ11

Answer:

The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute.

Explanation:

Response:

The evidence is clear: gravitational interactions are attractive and depend on the masses of the objects involved. This can be seen in the way that objects with mass are attracted to each other and in the way that planets orbit around the sun.

First, consider the fact that objects with mass are attracted to each other. This is the fundamental concept of gravity, and it is what causes objects to fall to the ground when dropped. If two objects with mass are placed near each other, they will experience a gravitational force of attraction that pulls them together. This force is proportional to the masses of the two objects - the more massive an object is, the stronger the gravitational force it will experience.

This dependency of gravitational force on mass is also evident in the orbits of planets around the sun. The sun is much more massive than any of the planets, and this causes the planets to experience a strong gravitational force of attraction that keeps them in orbit around the sun. The strength of this force depends on the masses of the sun and the planets - the more massive the planet, the stronger the gravitational force it experiences and the more tightly it is held in its orbit.

These examples demonstrate that gravitational interactions are attractive and depend on the masses of the objects involved. This is a fundamental property of gravity, and it is supported in many studies.

The kinetic energy of the simple pendulum at point B is 50 J

The kinetic energy of a body is the energy possessed by the body by virtue of its motion.

Kinetic energy is the product of the mass and the velocity of the moving body.

The potential energy of a body is the energy possessed by a body by virtue of its state or position.

Considering the simple pendulum, its energy alternates between kinetic energy and potential energy from point A to C.

At point B, midway through the motion of the pendulum, its energy is a mixture of potential and kinetic energy,

The kinetic energy of the body = 1/2 * 100 J

The kinetic energy of the body = 50 J

Learn more about kinetic energy at: https://brainly.com/question/8101588

#SPJ1

If a source of sound is traveling toward you, the speed of the sound waves reaching you is higher than the speed the sound waves would have had if the source were stationary.

The speed of sound waves in a medium is determined by the properties of the medium itself, such as its density and elasticity. In general, sound waves travel at a specific speed in a given medium, regardless of the motion of the source.

However, when the source of sound is in motion, there is an additional component to consider: the relative motion between the source and the observer. This relative motion affects the perceived frequency of the sound waves, known as the Doppler effect.

If the source of sound is moving towards the observer, the sound waves get compressed, resulting in a higher frequency and shorter wavelength. As a result, the speed of the sound waves relative to the observer appears higher than it would be if the source were stationary.

It's important to note that the actual speed of sound in the medium remains constant. It is the perceived speed or apparent speed of the sound waves reaching the observer that is affected by the motion of the source.

Learn more about sound at

https://brainly.com/question/30045405

#SPJ11

Answer:

Explanation: you can choose B or C but i would choose C

In this scenario, work is being done by the pushing force exerted on your friend. Work (W) is defined as the product of force (F) applied on an object and the displacement (d) of the object in the direction of the force.

Mathematically, it can be represented as:

W = F * d * cos(theta)

where theta is the angle between the direction of the force and the direction of displacement.

Given:

Force (F) = 45 N

Distance (d) = 9 m

Since the force is being applied in the same direction as the displacement, the angle theta between them is 0°, and the cosine of 0° is 1. Therefore, we can simplify the equation to: W = F * d

Plugging in the given values:

W = 45 N * 9 m

W = 405 N·m

The work done by the pushing force is 405 N·m.

Note: The unit of work is joules (J), which is equivalent to N·m (Newton-meter).

To learn more about, force, click here https://brainly.com/question/13191643

#SPJ11

Answer:

Explanation:

According to Hooke's law "provided the elastic limit of a material is not exceeded the extension e is directly proportional to the applied force"

Given data

mass m= 85 kg

spring constant k= 250 N/m

assuming g= 9.81 m/s^2

extension e= ?

We know that

\(F= ke \\mg= ke\)

solving for the extension e

\(85*9.81= 250*e\\\e= \frac{833.85}{250} \\\e= 3.33m\)

to get how far bellow the bridge the student falls before coming to stop, we have to add the extension e to the length of the bungee cord.

=12+3.33= 15.33 m

The student fall  below the bridge(12+3.33 = 15.33 m ) before coming to a stop. Where 12 is the length of bungee cord.

According to Hooke's law in the elastic limit of a material the the strain in the spring is directly proportional to the applied force or stress.  

Formula

\(\bold {F_s = -kx}\)

Where,

= spring force

k = spring constant =  250 N/m

x = spring stretch or compression = ?

The force,

F = mg

\(\bold {F = 85 \times 9.18}\\\\\bold {F = 833.85 }\)

So,

\(\bold {x = \dfrac {F_s }{k} }\\\\\bold {x = \dfrac {833.85} {250} }\\\\\bold {x = 3.33}\)  

Therefore, the student fall  below the bridge(12+3.33 = 15.33 m ) before coming to a stop. Where 12 is the length of bungee cord.

To know more about Hook's Law,

https://brainly.com/question/10991960

Answer:

I'm pretty sure it's c. I remember seeing a question like this and I think it was C

Explanation:

Answer:

The tendency of a dog to bark defines entirely on the type of environment and the situation the dog looks at. Hence the correct answer is option.

In practice, the concept of an infinitely long conductor is used as an approximation when the length of the conductor is much larger compared to other relevant distances in the system.

The assumption of an infinitely long conductor is a simplifying approximation used in certain physics and engineering problems. It allows for easier calculations and provides reasonably accurate results under certain conditions. However, in reality, no physical object can have infinite length.

The decision to treat a wire as infinitely long depends on the context and the specific problem being addressed. It is typically based on a comparison of the wire's length with other relevant dimensions in the system.

If the length of the wire is significantly larger compared to other distances involved, such as the distances between other conductors or the size of the magnetic field region of interest, then treating the wire as infinitely long may yield acceptable results.

However, if the length of the wire is comparable to or smaller than other relevant distances, a more precise analysis considering the finite length of the conductor becomes necessary. The level of accuracy required in the analysis also plays a role in deciding whether to treat the wire as infinite or finite.

In summary, the decision of whether a particular wire is long enough to be considered infinite depends on the specific problem and the relative magnitudes of the wire's length and other relevant distances in the system.

Learn more about conductor here:

https://brainly.com/question/14405035

#SPJ11

In the Hubble Extreme Deep Field, the galaxies seen in the earliest (youngest) stages of their lives are typically the small, faint, and irregularly shaped galaxies.

The Hubble Extreme Deep Field is an image captured by the Hubble Space Telescope that shows a small, seemingly empty patch of sky that contains thousands of galaxies. These galaxies vary greatly in size, shape, and color, and they are located at different distances from us.

Some of these galaxies are very young, while others are much older. However, in general, the galaxies that are seen in the earliest (youngest) stages of their lives tend to be small, faint, and irregularly shaped. This is because they are still in the process of forming and have not yet had the chance to merge with other galaxies or grow in size.
In conclusion, the small, faint, and irregularly shaped galaxies are the ones that are typically seen in the earliest (youngest) stages of their lives in the Hubble Extreme Deep Field. As these galaxies evolve and grow, they may become more structured and take on different shapes and sizes.

For information on Hubble extreme deep field kindly visit to

https://brainly.com/question/29589933

#SPJ11

The geothermal gradient in the tectonically stable region is approximately 21°C/km, indicating that the temperature increases by an average of 21 degrees Celsius per kilometer of depth.

To calculate the geothermal gradient, we need to find the rate at which the temperature increases with depth.

Temperature at the surface (T₁) = 14°C

Temperature at a depth of 5.0 km (T₂) = 119°C

Temperature difference = T₂ - T₁ = 119°C - 14°C = 105°C

Depth difference = 5.0 km - 0 km = 5.0 km

Geothermal gradient = Temperature difference / Depth difference

Geothermal gradient = 105°C / 5.0 km

Calculating this expression, we find:

Geothermal gradient ≈ 21°C/km

learn more about geothermal gradient here:

https://brainly.com/question/27975108

#SPJ11

Answer:

C

Explanation:

The work per unit mass done by the piston is 300 \(\frac{kJ}{kg}\).

At state 1 for steam

\(P_{1}\)= 101. 325 kpa

\(T_{1}\)= 400K = 127 °C

Now, see from the property table

\(u_{1}\)= 2550 \(\frac{kJ}{kg}\)

Now, at State 2

\(P_{2}=101.325\times 4=405.3\)kpa

\(T_{2}\)=600K= 327 °C

Now, see from the property table

\(u_{2}\)=2850 \(\frac{kJ}{kg}\)

Now, the work done is W which is given by

The definition of work done includes both the forces applied to the body and the total displacement of the body.

A constant force F is present before to this block. The goal of this force is to move the body d meters in a straight line in the force's direction.

W=\(u_{2}-u_{1}\)

W=2850-2550

W=300 \(\frac{kJ}{kg}\)

Learn more about work

brainly.com/question/18094932

#SPJ4

Answer:

Tournament play

Explanation:

Answer:

In 2019, the IUCN Red List reported approximately 28,000 species of in danger of disappearing from the wild.

Explanation:

The IUCN Red List is a glossary of animal and plant species that are in danger of extinction, dividing the severity of the danger into different colors where red is synonymous with those species in critical danger of disappearing.

The 2019 Red List showed that more than 28,000 species of animals, plants and other living beings are in a situation of critical danger, notable examples being the Iberian Lynx and the Bornean Orangutan, among many others.

The change in color of the newspaper turning yellow when left in direct sunlight for a few days is a result of a chemical process called photochemical degradation.

When the newspaper is exposed to sunlight, the ultraviolet (UV) radiation in sunlight initiates a chemical reaction in the paper fibers. The UV radiation breaks down the chemical structure of the paper, particularly the lignin present in the wood pulp used to make the paper. Lignin is responsible for the natural white color of the paper.

During the photochemical degradation process,  Sunlight exposure the UV radiation causes the lignin to undergo oxidation, resulting in the formation of yellow-colored compounds known as chromophores. These chromophores absorb certain wavelengths of light, causing the paper to appear yellow.

Additionally, the heat generated by the sunlight can accelerate the chemical reactions and further contribute to the yellowing of the paper.

Therefore, the change in color of the newspaper turning yellow when exposed to direct sunlight for an extended period is a consequence of photochemical degradation caused by the UV radiation and heat, leading to the formation of yellow chromophores in the paper.

Learn more about Sunlight exposure here

https://brainly.com/question/30326999

#SPJ11

Compared to other diffraction techniques, the advantage of X-ray diffraction is that it enables determination of three - dimensional molecular structure.

Diffraction is described as the interference or bending of waves via an aperture or around the corners of an obstruction into the area that forms the geometric shadow of the obstruction or aperture.

A common method for determining the crystallinity and structure of solid samples is X-ray diffraction (XRD).

In conclusion, X-rays are scattered by the electrons of atoms present in the sample without changing their wavelength, which causes the crystal X-ray diffraction phenomena.

Some advantages of X-ray diffraction

1) It determines the three-dimensional molecular structure.

2) It is a quick and effective method for determining unidentified minerals and materials.

3) Only a little sample needs to be prepared for analysis.

4) The generated data can be interpreted very easily.

5) XRD measurement equipment is commonly accessible.

Learn more about X-ray diffraction here https://brainly.com/question/20350782

#SPJ1

The mass of the sled is 65.5 kg. The coefficient of friction between the sled and the snow is 0.147. The sled is moving at 10.6 m/s at the top of the hill.

It takes Mr. Doyle approximately 10.6 seconds to transport his passenger to the top of the hill. To find the mass of the sled, we use the equation F_net = m * a, where F_net is the net force acting on the sled, m is the mass of the sled, and a is the acceleration. Rearranging the equation, we have m = F_net / a. Plugging in the values, we get m = 676 N / 1.24 m/s^2 = 545.16 kg. However, since the sled is on an incline, we need to consider the component of the force parallel to the incline, so the mass of the sled is 545.16 kg * sin(25°) = 65.5 kg.

To find the coefficient of friction, we use the equation F_friction = μ * F_normal, where F_friction is the force of friction, μ is the coefficient of friction, and F_normal is the normal force. Rearranging the equation, we have μ = F_friction / F_normal. Plugging in the values, we get μ = 676 N * cos(30°) / 328.8 N = 0.147.

To find the velocity at the top of the hill, we can use the equation v^2 = u^2 + 2as, where v is the final velocity, u is the initial velocity (0 m/s since the sled starts from rest), a is the acceleration, and s is the distance. Rearranging the equation, we have v = sqrt(2as). Plugging in the values, we get v = sqrt(2 * 1.24 m/s^2 * 25.0 m) = 10.6 m/s.

To find the time it takes to transport the passenger to the top of the hill, we can use the equation s = ut + (1/2)at^2, where s is the distance, u is the initial velocity, a is the acceleration, and t is the time. Rearranging the equation, we have t = sqrt(2s/a). Plugging in the values, we get t = sqrt(2 * 25.0 m / 1.24 m/s^2) = 10.6 s.

learn more about mass here:

https://brainly.com/question/11954533

#SPJ11

If an object is placed between a convex lens and its focal point, the image formed will be virtual, upright, and enlarged.

In this case, the rays of light from the object will diverge after passing through the lens. These diverging rays will appear to come from a point behind the lens, creating a virtual image that is larger than the object and appears upright.

This type of image is known as a virtual image because the rays of light do not actually converge at the location of the image. Instead, they appear to diverge from the location of the image when they are traced back to the lens.

To know more about convex lens refer here

https://brainly.com/question/27087947#

#SPJ11

Answer:

299,792,458 m/s

Through these observations alone, scientists determined that the speed of gravity was between 2.55 × 108 m/s and 3.81 × 108 m/s, completely consistent with Einstein's predictions of 299,792,458 m/s.

Explanation:

The velocity of the wave is defined by the product of wavelength and frequency. The velocity of a wave with a length of 10 m and frequency of 5hz will be 50 m/sec.

The velocity of the wave is defined by the product of wavelength and frequency. It is obtained from the formula of the wavelength which is given by;

\(\rm \lambda=\frac{v}{f} \\\\ \rm v = \lambda \times f \\\\ \rm v = 10 \times 5 \\\\ \rm v = 50\ m/sec\)

Hence the velocity of a wave with a length of 10 m and frequency of 5hz will be 50 m/sec.

To learn more about the velocity of wave refer to the link;

https://brainly.com/question/1292129

The heating curve could be describing processes such as boiling and endothermic reactions.A heating curve is a graphical representation that shows the changes in temperature as a substance is heated.

It typically consists of two distinct segments: heating and phase change. Boiling is a process where a substance changes from its liquid phase to its gaseous phase. During the heating phase, the temperature of the substance gradually increases until it reaches its boiling point. At this point, the substance undergoes a phase change, and the temperature remains constant until all the liquid has vaporized. Therefore, the heating curve could be describing the process of boiling.

Endothermic reactions are chemical reactions that absorb heat from their surroundings, resulting in a decrease in temperature. If the heating curve represents the temperature changes during an endothermic reaction, we would observe a decrease or plateau in temperature during the reaction, followed by a subsequent increase. Thus, the heating curve could also be describing an endothermic reaction.

Condensation, on the other hand, is the process by which a substance changes from its gaseous phase to its liquid phase. It typically occurs when a gas is cooled down, and the temperature decreases. However, the heating curve represents temperature changes during the heating process, not cooling. Therefore, condensation is not applicable to the heating curve.

Learn more about heating curves here:

https://brainly.com/question/29592874

#SPJ11

Explanation:

6gtvctyvyvyvyvyfcfufy