How would the value of the activation energy be affected if the actual temperature of the solution was lower than that of the water bath? (Kinetics temperature dependence lab)

The impulse is the product of mass and velocity. Hence, the impulse delivered by the second shopping cart is 3mv/2

Given the Parameters :

Impulse delivered by the second cart on the first :

Impulse = Mass × velocity

Impulse = Mass of cart 2 × final velocity of cart 1

Impulse = 3m × v/2 = 3mv/2 Ns (towards the left)

Therefore ; the impulse delivered by the second shopping cart is 3mv/2 to the left.

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When a gas expands adiabatically, its internal energy decreases and work is done on the gas.

Adiabatic expansion occurs when a gas expands without any heat exchange with the surroundings.

As a result, the internal energy of the gas decreases because the gas does work on the surroundings.

This means that option A is correct, and the internal (thermal) energy of the gas decreases.

Option B is incorrect since the gas is doing work on the surroundings and therefore loses internal energy.

Option C is incorrect because work is done on the gas by the surroundings.

Option D is correct since work is done on the gas.

Finally, option E is incorrect because the temperature of the gas decreases as its internal energy decreases due to the expansion.

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Answer:

145854.24J

Explanation:

Given parameters:

Specific heat capacity of water = 4.184J/g°C

Mass of the water  = 700g

Initial temperature  = 25.6°C

Final temperature = 75.4°C

Unknown:

Thermal energy  = ?

Solution:

To solve this problem, we use the expression below;

 H  = m x c x Ф

H is quantity of heat

m is the mass

c is the specific heat capacity

Ф is the temperature change

  H  = 700 x 4.184 x (75.4 - 25.6)  = 145854.24J

Electromagnetic Wave - oscillating electric charge

Radar - tracking storms

c            - Velocity of light

Photon - behaves as a particle

infrared waves - TV remote control

Frequency - Wavelength

ultraviolet waves - sun burn

Microwaves - Cooking Food

CRT - Television

pager - unique identification number

moving electric field - moving magnetic field

carrier wave - frequency modulation

In physics, electromagnetic radiation (EMR) is made up of electromagnetic (EM) field waves that travel across space carrying velocity and electromagnetic radiant energy. Radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays are all examples of electromagnetic radiation.

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Explanation:

The branch is possessing gravitational potential energy.

Visible light, ultraviolet rays, and X-rays are all forms of electromagnetic radiation, with differences in their wavelengths, frequencies, and energies.

Visible light is the part of the electromagnetic spectrum that human eyes can perceive. It has a wavelength range of 400-700 nanometers, with violet having the shortest wavelength and red having the longest. Visible light can be refracted, reflected, and diffracted, and it can be split into its component colors using a prism.

Ultraviolet (UV) rays have shorter wavelengths and higher frequencies than visible light. They have wavelengths between 10-400 nanometers. UV radiation is classified as UVA, UVB, and UVC, with UVC having the shortest wavelength and highest energy. UV rays can cause damage to DNA and can cause sunburn and skin cancer.

X-rays have even shorter wavelengths and higher frequencies than UV rays. X-rays have wavelengths between 0.01-10 nanometers. They can penetrate through materials that visible light and UV radiation cannot, such as body tissues and bones, making them useful in medical imaging. X-rays are also produced in outer space and can be used to study the universe.

In summary, the main differences between these types of electromagnetic radiation are their wavelengths, frequencies, and energies, which determine their properties and potential applications.

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Answer:

You subtract the atomic number from the atomic mass to find the number of neutrons alone

Explanation:

The atomic number is the number of protons OR electrons. They are both equal thus making the atom have a neutral charge. The relative atomic mass is the number of protons AND neutrons.

Answer:

Absolutely no real-life phenomena/ uses are possible that are related to any branch of physics, except:

1 The device you are reading this answer on. (quantum mechanics, electronics )

2 The air conditioner in your room. ( electromagnetism, electronics )

3 The satellites and space stations in space which will help in the deciphering of the universe will help us look for a suitable planet when we render the earth useless. ( general and special relativity, classical mechanics )

4 Ohh. I forgot, do you wear clothes, well they are made in factories where factories run on the principles of thermodynamics, which is physics.

5 Ever gone somewhere? Well, the transportation uses classical mechanics, thermodynamics, electromagnetism, relativity ( if you know Global Positioning System )

6 GPS itself! It’s used in online maps, navigating, and this sort of stuff. It works on general relativity.

Honestly, this list is endless.

(b) Always act on the different bodies in opposite directions

Answer:

b) Always act on the different bodies in opposite directions

Explanation:

b) Always act on the different bodies in opposite directions

For example:

If I am sitting on a sofa and I exert 370N and the sofa will exert -370N force. If the sofa doesn't exert force back, I won't be able to sit which means it will break.

Hope it helps ;) ❤❤❤

Answer:

340m/s

Explanation:

Given parameters:

Wavelength  = 2m

Frequency   = 170Hz

Unknown:

Velocity of the wave  = ?

Solution:

The velocity of the wave is the product of frequency and wavelength of the wave;

          V  = F λ

V is the velocity

 F is the frequency

λ is the wavelength

  Insert the parameters and solve;

          V = 2  x 170 = 340m/s

The velocity of the wave with the given wavelength and frequency is 340m/s.

Given the data in the question;

Velocity; \(v =\ ?\)

To determine the velocity of the wave, we use the expression for the relations between wavelength, frequency and speed.

\(\lambda = \frac{v}{f}\)

Where \(\lambda\) is wavelength, f is frequency and v is speed.

We substitute our given values into the equation

\(2m = \frac{v}{170s^{-1}}\\\\v = 2m * 170s^{-1}\\\\v = 340m/s\)

Therefore, the velocity of the wave with the given wavelength and frequency is 340m/s.

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The attribute of any rotating object determined by the product of the moment of inertia and the angular velocity is known as angular momentum.

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The figure (4) is said to be in equilibrium with the force 2F in the centre and F on the top and bottom of the hockey puck.

For a body to be in equilibrium, the net force acting on the body and the net moment acting on the body must be zero.

Let us consider the net force acting on the body of pucks (force toward positive direction is positive and force towards negative direction is negative).

For puck 1, net force = 3F - F -2F = 0

For puck 2, net force = 2F + F - F = 2F

For puck 3, net force = F + 2F - F = 2F

For puck 4, net force = F + F - 2F = 0

For puck 5, net force = 3F - F - 2F = 0

In puck 1 and puck 5, net torque about the centre mass is not zero.

In puck 4, net torque about the centre mass is zero.

Thus, puck 4 is said to be in equilibrium.

The question is incomplete. The figure is missing in the question. It is attached in the below attachment.

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From the analysis, it can be concluded that planet A has the strongest gravitational field, followed by planet C, and planets B and D have the same gravitational field strength.

The gravitational force acting on various masses is measured on different planets. The table shows the measured values for the forces acting on the corresponding masses:Planet Force (N) Mass (kg)A 8.0 0.50B 30 3.0C 45 3.0D 60 6.0

Method for comparing the gravitational field strengths on the different planets:First, we can use the formula for calculating gravitational force: \(`F = G (m_1m_2 / r^2)`\)where G is the universal gravitational constant `\(6.67 * 10^{-11 }Nm^2/kg^2\), m1 and m2 are the masses of the two objects in kg, and r is the distance between the centers of the objects in meters.

We know that the force is proportional to mass (F = ma). So we can calculate the acceleration due to gravity (g) on each planet by dividing the force by the mass. Therefore, we can use the formula: `g = F / m`.

Comparing the gravitational field strengths on the different planets:We will calculate the acceleration due to gravity (g) on each planet.

For planet A: `

g = F / m

= 8.0 N / 0.50 kg

= 16 \(m/s^2\)`

For planet B: `g = F / m

= 30 N / 3.0 kg

= 10 \(m/s^2\)

For planet C: `g = F / m

= 45 N / 3.0 kg

= 15 \(m/s^2\)

For planet D: `g = F / m

= 60 N / 6.0 kg

= 10 \(m/s^2\)

`So we see that planet A has the strongest gravitational field, followed by planet C, then planet B and planet D have the same gravitational field strength.

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Answer:

the money

Explanation:

you have worse grades but you have some money

Answer\(:0.178\ m/s^2\)

Explanation:

Given

Amirul starts from rest(u=0) to reach Boon chun house which is 80\ m away from School

acceleration of Amirul is given by

\(s=ut+\frac{1}{2}at^2\)

Where

s=displacement

u=intial velocity

a=acceleration

t=time

here \(t=30\ s\)

Substituting values we get

\(80=0+\frac{1}{2}\times a\times (30)^2\)

\(a=\frac{2\times 80}{900}\)

\(a=\frac{160}{900}=0.178\ m/s^2\)

Answer:

New Moon - Crescent Moom ---- Full Moon ---- Waning Quarter

Explanation:

The Moon revolves around the Earth in a 28 day period, which is approximately one Earth month, therefore S the student has been recording the movement of the Moon for 4 Earth weeks this is a period of complete revolution of the Moon .

Consequently you must register the following phases

New Moon - Crescent Moom ---- Full Moon ---- Waning Quarter

in the period where it begins, it must go through the cycle in an orderly way to the right.

Answer:

The Earth's rotation which produces Coriolis force is the responsing factor for the formation and movement of different global winds.

The cause of the global winds is due to the rotation of the earth that produces the Coriolis force factor for the formation and movement of global winds.

The global wind pattern is formed by the movement of the earth and they are polar easterlies, prevailing westerlies and the trade winds.

Each of them occurs at about 30 degrees of latitude. Hence they form wind belts. The Coriolis effect that is created due to the rotation of the earth is a fact that leads to the movement of global winds.

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Answer:

-A screw is an inclined plane wrapped around a cylinder.

Explanation:

Answer:

b

Explanation:

An example of a way to conserve energy in a home is "Replacing old windows with new ones." The correct option is D.

Conserving energy in a home involves reducing energy consumption and improving energy efficiency. Replacing old windows with new ones is an example of improving energy efficiency.

Old windows can be a significant source of energy loss due to poor insulation and air leaks. By replacing them with new, energy-efficient windows that provide better insulation and minimize air leakage, energy consumption can be reduced, making it an effective way to conserve energy in a home.

A. Removing weather-stripping around doorways: Weather-stripping around doorways helps prevent air leaks, which improves energy efficiency by reducing heating or cooling loss. Removing weather-stripping would result in increased energy consumption, making it an incorrect choice.

B. Using old light bulbs: Old light bulbs, such as incandescent bulbs, are less energy-efficient compared to newer, energy-saving options like LED bulbs. Using old light bulbs would result in higher energy consumption, making it an incorrect choice.

C. Reducing the use of insulation: Insulation is an essential component for energy efficiency in homes. It helps to reduce heat transfer and maintain a stable indoor temperature. Reducing the use of insulation would result in increased energy loss and higher energy consumption, making it an incorrect choice.

Therefore, the correct option is D. Replacing old windows with new ones because it improves energy efficiency and helps conserve energy in a home.

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Bonnie is an example of a volunteer who is offering her time and skills to help make floral arrangements at a flower shop. This act of volunteering demonstrates her willingness to give back to her community and support local businesses.

By offering her assistance, Bonnie is helping the flower shop to create beautiful and unique arrangements that will enhance the beauty and appeal of their products.

Additionally, her contribution of time and energy helps to ease the workload of the shop's staff and ensure that they are able to meet the demands of their customers.

Overall, Bonnie's decision to volunteer is a positive example of how individuals can make a difference in their communities by offering their time and talents to support local businesses and organizations.

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The energy of the mass-spring system is approximately 12.407 J.

The energy of a mass-spring system can be calculated using the formula for the total mechanical energy, which is the sum of the potential energy and the kinetic energy.

To find the potential energy, we can use the formula for the potential energy of a spring:

Potential energy = (1/2) x k x x²

where k is the force constant of the spring and x is the displacement from the equilibrium position.

Given that the force constant of the spring is 284 N/m and the amplitude of the motion is 0.21 m, we can calculate the potential energy as follows:

Potential energy = (1/2) x 284 N/m x (0.21 m)²

Simplifying this expression gives:

Potential energy = 0.5 x 284 N/m x 0.0441 m²

Potential energy = 6.12984 Nm

To find the kinetic energy, we can use the formula for kinetic energy:

Kinetic energy = (1/2) x m x v²

where m is the mass of the block and v is the velocity of the block.

Since the motion is simple harmonic, the maximum velocity occurs at the equilibrium position, where the block passes through the midpoint of its oscillation. At this point, the velocity is maximum and equal to the angular frequency (ω) times the amplitude (A). The angular frequency can be calculated using the formula:

Angular frequency (ω) = √(k/m)

Given that the mass of the block is 4.4 kg and the force constant of the spring is 284 N/m, we can calculate the angular frequency as follows:

Angular frequency (ω) = √(284 N/m / 4.4 kg)

Simplifying this expression gives:

Angular frequency (ω) = √(64.5455 N/kg)

Angular frequency (ω) = 8.0345 rad/s

Therefore, at the equilibrium position, the maximum velocity is:

v = ω x A

v = 8.0345 rad/s  0.21 m

v = 1.6872 m/s

Now we can calculate the kinetic energy:

Kinetic energy = (1/2) x 4.4 kg x (1.6872 m/s)²

Simplifying this expression gives:

Kinetic energy = 0.5 x 4.4 kg x 2.8439 m²/s²

Kinetic energy = 6.27716 J

The total mechanical energy of the mass-spring system is the sum of the potential energy and the kinetic energy:

Total mechanical energy = Potential energy + Kinetic energy

Total mechanical energy = 6.12984 J + 6.27716 J

Total mechanical energy = 12.407 J

Therefore, the energy of the mass-spring system is approximately 12.407 J.

In conclusion, the energy of the mass-spring system is approximately 12.407 J.

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We have that the exception from the Memory phase is

Timing

From the question we are given

A. encoding

B. storage

C. timing

D. decoding

Generally

Therefore

The the exception from the Memory phase is Timing

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The magnetic flux through the solenoid is 1.3 mWb. The magnetic flux is the amount of magnetic field lines passing through a surface. The greater the magnetic field, the greater the magnetic flux. The area of the surface also affects the magnetic flux, with a larger area having a greater magnetic flux.

The magnetic flux is calculated using the following formula:

Magnetic Flux = B * A * cos(theta)

Where:

B is the external magnetic field

A is the area of the solenoid

theta is the angle between the external magnetic field and the axis of the solenoid

In this case, the external magnetic field is 500 G, the area of the solenoid is 25 cm * 3.14 * 0.01 cm^2 = 0.19634 cm^2, and the angle between the external magnetic field and the axis of the solenoid is 60°.

So, the magnetic flux is 500 G * 0.19634 cm^2 * cos(60°) = 1.3 mW

The angle between the magnetic field and the surface also affects the magnetic flux, with a smaller angle having a greater magnetic flux.

In this case, the magnetic field is strong, the area of the solenoid is small, and the angle between the magnetic field and the axis of the solenoid is small. This means that the magnetic flux through the solenoid is relatively large.

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Answer:

Matter in the universe is made up of atoms, particles if electrons were to be stationary, they would have fallen into the nucleus because of electrostatic force acting on them destroying very existence of an atom we know.

Answer:

The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.

Explanation:

Thank me later

Answer:

Explanation:

So what you want to do is measure the wavelength for the wavelength by putting the ruler under or above the distance (show in picture).

amplitude you want to measure it inside of the wave. so when measuring move the ruler sideways.

( i hope this makes sense)

According to the question the speed of pulse is = 0.33m/s

Velocity is the pace and direction of either an object's movement, whereas speed is now the time rate which an object is travelling along a path. In other words, velocity is a vector, whereas speed would be a scalar value. If you determine how far an object travels in a certain amount of time, you can calculate its speed.For instance, an automobile is moving at a pace of 70 miles per hour if it covers 70 miles in an hour .

The equation for speed can be obtained by simply dividing time by distance.

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A 2000kg car is driving north at a steady speed of 80 km/hr (25m/s). The rolling resistance and air friction together is 40000N. The magnitude of the net force is 0 N, and its direction is undefined since there is no net force acting on the car.

To determine the magnitude and direction of the net force acting on the car, we need to consider the forces involved. In this case, the main forces acting on the car are the driving force (which propels the car forward) and the resistive forces (rolling resistance and air friction) that oppose the car's motion.

The resistive forces can be combined into a single force called the resistive force, which has a magnitude of 40000 N and acts in the opposite direction of the car's motion.

The driving force is equal to the resistive force because the car is moving at a steady speed, indicating that the net force is zero (no acceleration).

Therefore, the magnitude of the driving force is also 40000 N, and it acts in the north direction.

The net force is the vector sum of the driving force and the resistive force. Since they have equal magnitudes but opposite directions, the net force will be zero. This means that there is no acceleration or change in velocity.

The car continues to move at a steady speed in the north direction due to the balance between the driving force and the resistive forces.

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X Cardiac output is equal to [1] beats per minute multiplied by [2] how much blood leaves the heart.

Cardiac output refers to the volume of blood that the heart pumps per minute. It is a product of the heart rate and the stroke volume. Cardiac Output Cardiac output can be calculated by multiplying the heart rate by the stroke volume. The stroke volume refers to the amount of blood that leaves the heart during each contraction.

Therefore, the formula for calculating cardiac output is:

CO = HR x SV

Where:

CO = Cardiac Output

HR = Heart Rate

SV = Stroke Volume.

X Cardiac output = [1] (beats per minute) x [2] (how much blood leaves the heart)

Therefore, the formula for calculating cardiac output would be:

X Cardiac output = HR x SV

We can rearrange the formula as:

SV = X Cardiac output / HR.

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Answer:

\(a)0.136m \\ b)2.5 \times 10 {}^{14} cycle \: per \: sec\)

Explanation:

Greetings!!

Let's start from question a

speed(velocity)= 340m/s

frequency=2.5kHz

Temperature= 20°c

wave length=?

Firstly, recall velocity-wavelength equation

substitute known variables into the equation

To not get confused 2500 comes when kHz is changed to Hz. (notice)

solve for wavelength

for the second question b. also use the same procedure and the same format ( formula)

Thus, we work as

speed(velocity)= 3.0×10^8

wavelength=12×10^-6

frequency=?

Firstly, recall velocity-wavelength equation

substitute known values into the equation

(3.0×10^8)= f(1.2×10^-6)

solve for frequency

f= 2.5× 10^14 Hz

If any questions or anything else tag me on comments.

Hope it helps!!!