a 66-kg k g skier starts from rest at the top of a 1200-m m -long trail which drops a total of 290 m m from top to bottom. at the bottom, the skier is moving 11 m/s m / s .

The masses amount of a proton and neutron are 1.0087 and 1.0073 amu respectively.

This is defined as  sub atomic particle which is positively charged and is present in the nucleus while the neutron is also a particle present in the nucleus but has a neutral charge.

Electrons on the other hand are found outside the nucleus and are negatively charged. It is the sub atomic particle which is actively involved in a chemical reaction.

The masses of neutron and proton are 1.0087 and 1.0073 amu respectively and was discovered by scientists thereby making it the most appropriate choice.

Read more about Proton and Neutron here https://brainly.com/question/237857

#SPJ1

Answer:

You need to provide the question and (if it has them) answer options for the question. Once you have done that, delete my response so I may be able to answer your question faster than normal.

Explanation:

Answer: 6 Joules

Explanation:

You are given that the potential energy P.E of the apple = 18 Joules

PE = mgh

Where g = 9.8 m/s^2

18 = mgh

Initially, The mechanical energy of the apple = 18 Joule.

According to conservative of energy

the total energy of the apple will be 18 Joules. That is,

K.E + P.E = 18 Joules

when the apple has fallen to one third its original height, the remaining height from the ground upward will be:

height h = 1 - 1/3 = 2/3

The new Potential energy will be

P.E = 2/3 × 18

P.E = 12 Joules

The potential energy lost must have been converted to the kinetic energy according to conservative of energy

K.E + 12 = 18

Make K.E the subject of formula

K.E = 18 - 12 = 6 Joules

Therefore, the apple will have 6 Joules of kinetic energy when it has fallen to one third its original height.

As the given statement is False. As a substance that heats up relatively quickly must has a high specific heat capacity.

A physical property of matter is specific heat capacity. The quantity of heat energy required to raise a substance's temperature per unit of mass is known as the specific heat capacity. It serves as an illustration of a large property. Since the scale of the system under study directly affects it. Therefore, it is the amount of heat absorbed by the substance per unit mass when its temperature is elevated. Specific Heat Capacity is measured in J/(kg K) or J/(kg °C) units.

As heating is quick when the substance have high specific heat capacity and the heating will be slow when the substance have less specific heat capacity.

To learn more about Specific heat Capacity, Visit:

https://brainly.com/question/29766819

#SPJ4

Answer:

Eye function renders you the sense of sight. They convert light into electrical signals. Afterwards, the brain deciphers these electrical signals into images. Properly working healthy eyes are able to perform the following functions.

Explanation:

The velocity as a function of time is 0, and displacement between t = 10.0 s and t = 35.0 s is 0.

The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t).

as S= 0, then

\(V_{total}\) = \(\frac{ Final Speed - initial speed}{total_time }\)

V=0.

Displacement is defined as the final position minus the starting position.

Displacement = Final distance- initial distance

S= 0

To know more about Velocity and displacement, use the link.

https://brainly.com/question/19979064

#SPJ1

Answer: 11.025 meters.

Explanation:

Ok, we know that the initial velocity is only horizontal, so it does not affect the vertical problem.

Looking only at the vertical problem (because we want to know how high is the bridge) we have that:

The acceleration is the gravitational acceleration, g = 9.8m/s^2

A(t) = -9.8m/s^2

Where the negative sign is because this acceleration is downwards.

For the vertical velocity we integrate over time, as we do not have an initial vertical velocity, there is no constant of integration.

V(t) = (-9.8m/s^2)*t

For the position we integrate over time again, here the constant of integration is the initial vertical position, H, that is the height of the bridge.

P(t) = 0.5* (-9.8m/s^2)*t^2 + H.

Now we know that the ball hits the ground 1.5s after it was kicked, then:

p(1.5s) = 0m

With that we can find the value of H.

0 = 0.5* (-9.8m/s^2)*(1.5s)^2 + H.

H = 0.5*(9.8m/s^2)*(1.5s)^2 = 11.025m

Answer:

in accelerated motion

Explanation: tbh I just guessed if im wrong sorry

The activation energy of a certain reaction is used to find the temperature at which the reaction would go twice as fast.  while the Arrhenius equation can be used to find the rate constant at a different temperature for the same reaction.

We can use the Arrhenius equation, which relates the rate constant of a reaction to the activation energy and temperature. We know the rate constant at 20C and the activation energy, so we can set up the equation as follows:

k2 = 2k1
ln(k2/k1) = Ea/R * (1/T1 - 1/T2)
T2 = Ea/R * (1/T1 - ln(k2/k1)/Ea)

Plugging in the given values, we get:

T2 = 47.1 kJ/mol / (8.314 J/mol*K) * (1/293 K - ln(2)/(47.1 kJ/mol))
T2 ≈ 358 K or 85 C

For the second part of your question, we can use the same equation to find the rate constant at 140 C:

ln(k2/k1) = Ea/R * (1/T1 - 1/T2)
k2 = k1 * e^(Ea/R * (1/T1 - 1/T2))

Plugging in the given values, we get:

k2 = 0.0170 s^-1 * e^(47.1 kJ/mol / (8.314 J/mol*K) * (1/293 K - 1/413 K))
k2 ≈ 1.81 s^-1.

To know more about Arrhenius equation refer here:

https://brainly.com/question/21148211#

#SPJ11

The average power output during the lift is 2940w.

Given,

a person lifted the barbell from the ground.

The mass of the barbell = 100kg

time taken = 0.5s

displacement = s = 1.5m

we know,

w = mgs

= 100 × 0.5 × 1.5 = 1470j

As we know ,power = work done / unit time

P = 1470j/0.5s = 2940w

Hence,the average power output during the lift is 2940w.

Power is always a function of labour output, therefore if a person works at a variable rate depending on the time of day, his power will likewise vary. The idea of average-power enters the picture at this point. Let's study about power, average power, unit, and formula in this session.

Average power is calculated by dividing the total energy used by the total time required. The average quantity of work completed or energy converted per unit of time is known as average power.

The rate at which work is performed on an object is referred to as its power. Power is a temporal concept. It has to do with how quickly a task gets completed.

Learn more about power here :

brainly.com/question/7007759

#SPJ4

Answer:

An atom is the smallest part of an element by itself, while molecules are built of multiple atoms.

A proton and electron separated by 1.0 x 10-10 meters exert 1.0 x 10-47N of gravitational force on each other.

The gravitational force will bring together any two mass-containing objects. The gravitational force is described as attracting because it consistently tries to draw masses together and never tries to push them apart. In reality, you and every other item in the universe are pulling toward one another.

What is the origin of gravity?

All of the mass on Earth is what creates gravity. The cumulative gravitational attraction of all of its mass exerts pressure on all of the body's mass. Your weight is determined by that. Furthermore, your weight would be lower if you were on a planet with a lower mass than Earth.

To know more about  gravitational force visit:

https://brainly.com/question/24783651

#SPJ13

Answer:

It depends if your smart

Explanation:

Also, I plead the 5th

Answer:

Explanation:

For every action (or force), there is an equal and opposite action (or force).

Answer:

Cause of Inertia of Motion

Explanation:

It can be explained as follows...when the moving bus suddenly stops, the lower part of the body of the passenger contact with the bus suddenly comes to rest while the upper part of the body tends to retain its state of motion due to inertia. As a result, the passenger is thrown forward.

Answer: 0.0541

Explanation:

If the car took a time of 74.4 seconds to complete one lap around a circular track, the circumference of the track is 50.0 m/s * 74.4 s = <<50.0*74.4=3720>>3720 m.

The radius of the circular track is half the circumference, so it is 3720/2 = <<3720/2=1860>>1860 m.

The acceleration of a body moving in a circle with constant speed is given by the formula a = v^2/r, where a is the acceleration, v is the speed, and r is the radius of the circle.

Therefore, the magnitude of the acceleration of the car is 50.0^2/1860 = <<50.0^2/1860=0.0541>>0.0541 m/s^2

The probability that a damaged bag is from supplier A is approximately 0.54.

Probability is a measure of the likelihood or chance of an event occurring. It is a numerical value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Let's define some events:

We want to find the probability that a damaged bag is from supplier A, given that a bag is damaged:

\(P(A|D)= \dfrac{P(D|A).P(A)}{P(D)}\)

To calculate the values for this formula, we need to use the given probabilities:

To find $P(D), we can use the law of total probability:

P(D)=P(D∣A)⋅P(A)+P(D∣B)⋅P(B)

Plugging in the values:

P(D) = 0.05⋅0.7+0.1⋅0.3

P(D) = 0.065

Now we can calculate the conditional probability:

\(P(A|D )= \dfrac{P(D|A).P(A)}{P(D)}\)

\(P(A|D) = \dfrac{0.05\times 0.7} { 0.065}\)

P(A|D) ≈ 0.54

Therefore, the probability that a damaged bag is from supplier A is approximately 0.54.

Learn more about probability follow

https://brainly.com/question/31132920

#SPJ11

When the slit is made smaller, the spot becomes larger because of the phenomenon known as diffraction.

Diffraction is the bending of light waves around small obstacles and the spreading out of light waves past small openings. When the slit is made smaller, the amount of diffraction increases, causing the spot to become larger. This is because the smaller the slit, the more the light waves spread out as they pass through it, creating a larger spot on the other side. This is an example of the wave nature of light and is described by the Huygens-Fresnel principle.

In mathematical terms, the size of the spot is inversely proportional to the size of the slit. This means that as the slit size decreases, the spot size increases, and vice versa.

In conclusion, making the slit smaller causes the spot to become larger due to the phenomenon of diffraction, which causes light waves to spread out more as they pass through the smaller slit.

You can learn more about diffraction at

https://brainly.com/question/14076849

#SPJ11

Statement (e), "All of the above are true," is true.

To know more about thermodynamics visit:

https://brainly.com/question/14094259

#SPJ4

Answer:

(D) is visible light

Explanation:

(F) is xray and (B) is radio

At constant temperature and pressure, ΔSuniv and ΔGsys are related through the Gibbs free energy equation, with positive ΔSuniv indicating a spontaneous process and negative ΔSuniv indicating a non-spontaneous process.

The relationship between âsuniv and âgsys at constant temperature and pressure can be explained through the second law of thermodynamics. âsuniv represents the total change in entropy of a system and its surroundings, while âgsys represents the change in entropy of the system alone. Therefore, the relationship between âsuniv and âgsys can be expressed as âsuniv = âgsys + âssurr, where âssurr represents the change in entropy of the surroundings.

The change in the total entropy of the universe (âsuniv) is equal to the change in entropy of the system (âgsys) plus the change in entropy of the surroundings (âssurr). This relationship highlights the importance of considering not only the system being studied, but also its interaction with the surrounding environment.  At constant temperature and pressure, the relationship between âsuniv and âgsys can be described as âsuniv = âgsys + âssurr, emphasizing the significance of the second law of thermodynamics in understanding the behavior of thermodynamic systems. This relationship can be further explored and applied in various fields such as chemistry, physics, and engineering.

To know more about pressure visit :-

https://brainly.com/question/30482677

#SPJ11

Answer: There are seven main stores of energy: magnetic

internal (thermal)

chemical

kinetic

electrostatic

elastic potential

gravitational potential

Explanation: So you can have any of these

A .

Explanation:

Tiny water drops hovering in the air are called fog. Fog is like a cloud, but it is near the ground, not high in the sky. Thick fog makes it difficult to see the surrounding landscape

we have that from the Question"which of these might be carried by the wind, which causes the weathering of rocks? " it can be said that  

From the Question we are told

which of these might be carried by the wind, which causes the weathering of rocks?

A. fog

B. mud

C. pollen

D. sand

Generally

Therefore

Which of these might be carried by the wind, which causes the weathering of rocks will be

Option C

For more information on this visit

https://brainly.com/question/22610586?referrer=searchResults

The distance travelled by the airplane before takeoff is 1721 m.

2. The acceleration of the race car is 11.2 m/s², and Distance travelled by the car is 79.9 m.

3. The acceleration of the bullet is 1.62 * 10⁵ m/s².

The distance travelled by the airplane before takeoff is determined using the formula:

s = ut + ¹/₂at²

u = 0; a = 3.20 m/s², t = 32.8 s

s = 0 * 32.0 +  ¹/₂ * 3.2 * 32.8²

s = 1721 m

2. The acceleration of the race car is calculated as follows:

a = (v - u)/t

v = 46.1 m/s, u = 18.5 m/s, t = 2.47 s

a = (46.1 - 18.5)/2.47

a = 11.2 m/s²

Distance travelled, s = 18.5 * 2.47 + ¹/₂ * 11.2 * 2.47²

s = 79.9 m

3. The acceleration of the bullet is calculated as follows:

a = (v² - u²)/2s

where v = 0 m/s, u = 521 m/s, s = 0.840 m

a = (0² - 521²)/2 * 0.840

a = 161572.0238

a = 1.62 * 10⁵ m/s²

Learn more about acceleration and distance at: https://brainly.com/question/14344386

#SPJ1

The energy stored in the spring with a mass of 0 kg hung off it which extends 2 cm is 0.001 J.

To determine the energy stored in the spring, the equation E = 0.5kx² can be used, where E is the energy stored, k is the spring constant and x is the displacement from the equilibrium position.

As the mass hung off the spring is 0 kg, the spring constant can be calculated using the formula k = F/x, where F is the force applied and x is the displacement from the equilibrium position. As the mass is not moving, the force applied is equal to the weight of the mass, which is 0 N. Therefore, k = 0 N/cm.

Now, x is given as 2 cm. Substituting the values in the formula E = 0.5kx², we get E = 0.5(0 N/cm)(0.02 m)² = 0 J. This shows that there is no energy stored in the spring when the mass hung is 0 kg.

However, the extension in the spring indicates that some energy has been stored. This is due to the elastic potential energy in the spring which causes it to extend when a force is applied to it.

As the spring returns to its equilibrium position, this energy is released. Therefore, the energy stored in the spring when a mass of 0 kg hung off it which extends 2 cm can be said to be approximately 0.001 J.

Learn more about spring here.

https://brainly.com/questions/30106794

#SPJ11

Answer: 324.135 kJ

Explanation:

Given

Mass of dropping is \(m=2250\ kg\)

The initial height of dropping is \(h_1=16\ m\)

The final height of dropping \(h_2=1.3\ m\)

Gravitational potential energy is the function of height i.e.

\(\Rightarrow \text{G.E.}=mgh\)

Change in Gravitational Energy is

\(\Rightarrow \Delta \text{G.E.}=mg(h_1-h_2)=2250\times 9.8\times (16-1.3)\\\\\Rightarrow \Delta \text{G.E.}=3,24,135\ J\approx 324.135\ kJ\)

According to the given statement the correct answer is when we speak of the large-scale structure of the universe, we are referring to the distribution and arrangement of matter and energy on the largest scales, such as galaxy clusters and superclusters.

This includes the overall cosmic web of filaments and voids, as well as the patterns of cosmic microwave background radiation that provide insights into the early universe. Understanding the large-scale structure is crucial for investigating the origins and evolution of the universe.When we refer to the large-scale structure of the universe, we are talking about the distribution of matter and galaxies on a very large scale. This includes the arrangement of clusters and superclusters of galaxies, as well as the vast cosmic voids that separate them. The large-scale structure of the universe is studied in the field of cosmology, and understanding its properties can provide insight into the origin, evolution, and future of the universe. Some of the tools used to study the large-scale structure of the universe include telescopes, surveys of galaxy positions, and computer simulations.

To know more about large-scale structure of the universe visit:

https://brainly.com/question/31755229

#SPJ11