Explain the free motion of particles.

Answer:

2 to 4 hours

Explanation:

Given that,

Microbial food infections

We know that,

Food infection :

When we eat old food, uncooked, fermented food, more junk food and contaminated food then 2 to 4 hours after eating we started vomiting, headache then we affected by food infections.

So, we can say that microbial food infections are usually not seen until 2 to 4 hours after eating contaminated food.

Answer:

since the cannon ball has much less mass it will have a smaller momentum.

The system's total momentum was zero before the cannon was fired, the momentum of the cannonball and the cannon must be equal and opposing. Since the cannon has much more mass, it will have a smaller velocity.

The combination of a particle's mass and velocity produces momentum. Momentum has both a direction. The force exerted on a particle is equated to the time rate of change of momentum by Isaac Newton's second equation of motion.

Since there is no external force acting on the system, momentum ought to be conserved in accordance with the law of conservation of momentum.

Since we are aware that momentum is determined by a formula

M = \(mass * velocity\)

Here M is the momentum.

Since the system's total momentum was zero before the cannon was fired, the momentum of the cannonball and the cannon must be equal and opposing. The cannon will have a lower velocity because it has a lot greater mass.

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By using the Kohler curves is 4×\(10^{-5} cm\). If Rh is not shown in the graph therefore the sensitivity is near 1.00 S Rh is 88%. That is 0.0055 means 0.55%.

Kohler curves, also known as Kohler plots, are a graphical representation of the magnetoresistance of a material as a function of the magnetic field strength. They were first introduced by Walter Kohler in 1934 to describe the behavior of ferromagnetic materials. Kohler curves are useful in the study of magnetic materials and have applications in the development of magnetic sensors and memory devices.

Kohler curves plot the ratio of the resistance of a material at a given magnetic field strength to its resistance in the absence of a magnetic field, versus the square of the magnetization of the material. The resulting curve can be used to determine the degree of spin polarization in the material, which is a measure of the alignment of electron spins in the material with the magnetic field.

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Complete Question:

Using the Kohler curves estimate the following: (a) the radius of the droplet that will form on a sodium chloride particle of mass 10^-18 kg in air that is 0. 1% supersaturated; (b) the relative humidity of the air adjacent to a droplet of radius 0. 4 microns that contains 10^-19 kg of dissolved ammonium sulfate; (c) the critical supersaturation required for an ammonium sulfate particle of mass 10^-19 kg to grow beyond the haze state

Answer:

r = 50.47 x 10³ m = 50.47 km

Explanation:

Using the formula for the acceleration due to gravity:

\(g = \frac{Gm}{r^2}\)

where,

g = acceleration due to gravity on the surface of asteroid = 0.0288 m/s²

G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ Nm²/kg²

m= mass of asteroid = 1.1 x 10¹⁸ kg

r = radius of asteroid = ?

Therefore,

\(0.0288\ m/s^2 = \frac{(6.67\ x\ 10^{-11}\ Nm^2/kg^2)(1.1\ x\ 10^{18}\ kg)}{r^2} \\\\r = \sqrt{\frac{(6.67\ x\ 10^{-11}\ Nm^2/kg^2)(1.1\ x\ 10^{18}\ kg)}{0.0288\ m/s^2}}\)

r = 50.47 x 10³ m = 50.47 km

Answer:

5.05x10^4

Explanation:

g=(GM)/r^2, so

.0288=(6.67x10^-11*1.10x10^18)/r^2, r=5.05x10^4.

This is correct on Acellus.

Answer:

Frequency = 0,0000003 [Hz?]

The resilience of a material is defined as the ratio of the energy stored in the material to the energy required to deform it. Mathematically, resilience is given by the equation.

Resilience = (Energy stored) / (Energy required to deform)

Given that the resilience of the protein resilin is 0.92, we can use this information to determine the energy required to stretch it, as well as the energy stored when it relaxes.

Let's denote the energy required to stretch the resilin as W and the energy stored when it relaxes as 6.00 J (given in the question).

Resilience = (Energy stored) / (Energy required to deform)

0.92 = 6.00 J / W

Solving for W, we can rearrange the equation as:

W = (Energy stored) / (Resilience)

W = 6.00 J / 0.92

Plugging in the given values, we can calculate the energy required to stretch the resilin:

W = 6.00 J / 0.92

W ≈ 6.52 J

So, the work done to stretch the resilin is approximately 6.52 J.

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Answer: 109.9 km/h

Explanation:

To find the average speed of the relay team, we need to determine the total distance covered by the three animals and the time it takes for them to complete the race. Assuming each animal runs/swims at maximum speed for distance L, we can calculate the time it takes for each animal to complete its part of the relay as:

Cheetah: Time taken = Distance / Speed = L / 103

Falcon: Time taken = Distance / Speed = L / 148

Sailfish: Time taken = Distance / Speed = L / 92

Since the three animals take turns to complete the race, the total time taken for the relay race would be the sum of the time taken by each animal:

Total time taken = L/103 + L/148 + L/92

To find the average speed, we need to divide the total distance covered (3L) by the total time taken:

Average speed = Total distance / Total time

= 3L / (L/103 + L/148 + L/92)

= 3 / (1/103 + 1/148 + 1/92)

= 109.9 km/h (rounded to one decimal place)

Therefore, the average speed of the relay team is approximately 109.9 km/h.

Regenerate response

The density of the cylindrical object is 2.88 g/cm^3.

Density is calculated by dividing the mass of an object by its volume. In this case, we are given the diameter and length of the cylindrical object, which allows us to calculate its volume.

The formula for the volume of a cylinder is V = πr^2h, where r is the radius and h is the height (or length) of the cylinder. Since we are given the diameter (which is twice the radius), we can calculate the radius by dividing the diameter by 2.

Given that the diameter is 3.82 cm and the length is 8.03 cm, we have a radius of 3.82 cm / 2 = 1.91 cm and a height of 8.03 cm.

Next, we are given the mass of the object, which is 57.0 g. Now, we can calculate the volume of the cylinder using the formula mentioned earlier.

V = π(1.91 cm)^2 * 8.03 cm = 92.42 cm^3

Finally, we can calculate the density by dividing the mass (57.0 g) by the volume (92.42 cm^3).

Density = 57.0 g / 92.42 cm^3 ≈ 2.88 g/cm^3

Therefore, the density of the cylindrical object is approximately 2.88 g/cm^3.

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Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

Answer: 12.5

Explanation: 50 x 0.25 = 12.5 km

Approximately 23% of incoming solar radiation is absorbed by the atmosphere. Around 50% of the solar radiation reaching is absorbed by  Earth's surface is absorbed. The remaining 27% is reflected or scattered back into the atmosphere.

Approximately 23% of incoming solar radiation is absorbed directly by the atmosphere. This includes absorption by gases such as water vapor, carbon dioxide, and ozone.

The remaining 77% of incoming solar radiation reaches the Earth's surface. Once it reaches the surface, various processes take place, including reflection, scattering, and absorption. On average, about 50% of the solar radiation reaching the Earth's surface is absorbed by the surface, while the remaining 27% is reflected back into the atmosphere or scattered in different directions. The absorbed energy is then converted into heat, contributing to the warming of the Earth's surface.

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Yes, it is possible for a particle to be found within the barrier while undergoing tunneling.

This phenomenon is known as quantum tunneling. Quantum tunneling occurs when a particle tunnels through a barrier that is normally too high to be crossed by the particle's kinetic energy. This occurs due to the wave-like nature of particles, which allows them to go through barriers that are otherwise impenetrable.

The wave-like nature of particles allows them to penetrate the barrier, often with a probability greater than zero. This phenomenon is used in many applications in science and technology, such as in quantum computing, where quantum tunneling is used to tunnel qubits through the barrier of a logic gate.

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Answer:

C

Explanation:

The definition of velocity and the graphical analysis allows to find the correct answer for the velocity of a body moving in the negative direction is:  

     c) A downward-sloping line segment

Kinematics studies the movement of bodies, establishes relationships between position, velocity and acceleration.

Velocity is defined as the change of position in the time interval.

      \(v= \frac{\Delta x}{\Delta t}\)  

In a graph of this expression, time is placed on the x-axis and the position on the y-axis.

In general, if the final position is greater than the initial position, the speed is positive and the slope must be upward sloping.

If the final position is less than the initial position, the velocity is negative and the slope of the graph is downward sloping, in the attachment we can be this type of graph.

Let's review the different answers:

a) False. This velocity is positive.

b) False. In this case the speed is vertical.

c) True. The final position is less than the initial position, therefore the velocity is negative.

d) False. In that case there is no change in position, therefore the velocity is zero

In conclusion, using the definition of velocity and graphical analysis we can find the correct answer for the velocity of a body moving in the negative direction is:

     c)  A downward-sloping line segment

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Rectilinear motion of light is shown in picture. The wavelengths of light that are visible to humans fall into a relatively small range within that wide spectrum.

Electromagnetic radiation that the human eye can detect as light. From radio waves with wavelengths measured in meters to gamma rays with wavelengths shorter than roughly 1 1011 meter, electromagnetic radiation occurs throughout a very broad range of wavelengths.

The wavelengths of light that are visible to humans fall into a relatively small range within that wide spectrum, ranging from about 700 nanometers (nm; billionths of a meter) for red light to roughly 400 nm for violet light. Infrared and ultraviolet are two spectral bands that are close to the visible region and are repeatedly alluded to as light as well. Rectilinear motion of light is shown in picture.

Therefore, rectilinear motion of light is shown in picture.

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Answer:

3/2 Ω

Explanation:

ONE WAY :

1/ (1/3 + 1/3)  = 1/(2/3) =  3/2 Ω

When you have two resistors in parallel , here is another way

   3*3 /(3+3)  = 9/6 = 3/2  Ω    

 ( you can use this method ONLY when you have two parallel resitances !)

A pallet jack also known as a pallet truck, is a device used to lift and move heavy or stacked pallets.

A pallet jack, additionally called a pallet truck, pallet pump, pump truck, hand truck, scooter, canine, or jigger is a device used to lift and pass pallets. Pallet jacks are the most fundamental shape of a forklift and are meant to transport pallets within a warehouse.

A pallet jack is the most fundamental form of forklift and is intended to transport pallets in a warehouse or trailer. Pallet jacks are some of the maximum important gear located in warehouses and are used for transporting small masses for quick distances

The pallet jack has a deal with a lever. Slide the prongs into function beneath a pallet and crank the handle up and all the way down to carry the prongs off of the floor. Push or pull the pallet on your favored location and keep the lever right down to decrease the prongs returned to the ground.

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In the given figure, if I = 2A and I2 = 6A, the relation between F1 and F2 is, F1 = F2.

The two forces are an action reaction forces. They act on different wires, and have equal magnitudes but opposite directions. So, they are equal.

We find the discussion of action and reaction forces in newton's third law.

According to the Newton's third law states that If there is an action force, there must be a reaction force. If there is an object A which exerts a force on object B, then object B must also exerts an equal and opposite force on object A. In other words, we can say that forces result from interactions.

Action and reaction forces acts on different objects. they exist in pair. They are always equal in magnitude and opposite in direction.

The given question is incomplete, the complete question is

n figure given below, I1-2A and I2=6a, which of the following is true? Note that F2 represents the magnet of the force on wire 2

(a) F1=3F

(b) F1=F2

(c) F1=F2/3

Option (b) is the correct answer.

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Answer:

1. s = d/t

22. d = 3km = 3000m

t = 2m = 60s

s = 3000/60

= 300/6

= 50m/s

Therefore, the speed of the car is 50 m/s.

23. s = 60km/hr

t = 2hrs

d = s × t

d = 60 × 2

d = 120km

The car travels for 120km.

24. s = 10mile/hr

d = 35km

t = d/s

t = 35/10

t = 3.5hrs

The girl takes 3.5 hours to cover the distance

here is the answers, hope this helps you.

We have that the  gravitational potential energy  effect on the system is mathematically given as

Option C

From the question we are told

Due to reduce in top of Y, doable strength will limit and due to amplify in peak of X, achievable power will increase.

Now, PE = mgh.

Generally the equation for the Velocity of centre of mass  is mathematically given as

\(V =\frac{ m1v1 + m2v2}{ m1 + m2}\\\\Therefore \\\\V =\frac{ (m1 - m2) v}{ m1 + m2}\)

Hence, V is positive as m1 > m2

Therefore

The conclusion

The gravitational potential energy decreases because the center of mass of Object X and Object Y moves downward.

Option C

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Objects X and Y are connected by a string of negligible mass and suspended vertically over a pulley of negligible mass, creating an Atwood’s machine, as shown in the figure.

The objects are initially at rest, and the mass of Object Y is greater than the mass of Object X. As Object Y falls, how does the gravitational potential energy of the Object Y-Object Y-Earth system change? All frictional forces are considered to be negligible.

a

The gravitational potential energy increases because the center of mass of Object X and Object Y moves upward.

b

The gravitational potential energy increases because the center of mass of Object X and Object Y moves downward.

c

The gravitational potential energy decreases because the center of mass of Object X and Object Y moves downward.

d

The gravitational potential energy decreases because the center of mass of Object X and Object Y moves upward.

Explanation:

When the water level in Neapl's over 6,000 rivers and creeks, flowing north to South, swells up during the monsoon season, they wreak havoc in the downstream communities of the plains .

Answer:

160J OR 140J

Explanation:

Depends on teacher which formula your teacher uses.

U=Q+W OR U=Q-W

Method 1:

U=150+10J=160

U=150-10=140J

Answer: D, Refraction, Reflection, Refraction.

Explanation: Refraction is a rainbow. See image for info.

Answer:

Momentum is the product of mass and velocity. The two types of momentum are angular and linear.

Explanation:

Answer:

Explanation: (Momentum is mass * velocity. Its units, in the SI system are kilogram meter per second) What is Inertia?

In physics, momentum is the product of mass and velocity. The greater the product of this equation, the greater the momentum. In science, there are two types of momentum: angular and linear, which concern different types of moving objects. However, that is not where the definition stops. The word momentum is also used as part of everyday speech, and is one of the very few physics concept whose metaphorical definition is the same as its actual one.

I HOPE THIS ANSWER WILL HELP YOU!!!

Answer:

20n

Explanation:

20 n

b) the two-car pair moves with a speed of 30.0 m/s after the collision.

To determine the speed of the two-car pair after the collision, we can apply the principle of conservation of momentum. According to this principle, the total momentum before the collision should be equal to the total momentum after the collision, assuming no external forces are acting on the system.

The initial momentum of the truck-car system is given by the sum of the individual momenta of each vehicle. The momentum is calculated by multiplying the mass of an object by its velocity. Therefore, the initial momentum of the system is (4000 kg * 30 m/s) + (2000 kg * 15 m/s) = 180,000 kg·m/s.

After the collision, the two vehicles become stuck together, forming a combined mass of 4000 kg + 2000 kg = 6000 kg. Let's denote the final velocity of the combined system as v. The momentum of the combined system after the collision is 6000 kg * v.

According to the conservation of momentum, the initial momentum and the final momentum should be equal. Therefore, we have:

180,000 kg·m/s = 6000 kg * v

Solving for v, we find v = 180,000 kg·m/s / 6000 kg = 30 m/s.

Hence, the two-car pair moves at a speed of 30.0 m/s after the collision.

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Answer:

22400 Joules

Explanation:

Apply the formula:

KE = 1/2 . 40 . 1120

KE = 20 . 1120

KE = 22400 Joules

Wendy riding her bike in a circle in the parking lot is a change in direction, but her speed is constant, so her velocity is not changing. Amber sitting on a park bench and Jessica walking her dog along Chestnut Avenue are both stationary, so there is no change in velocity.

What is Velocity?

It is defined as the change in position of an object over a unit of time, usually measured in meters per second (m/s) or kilometers per hour (km/h), in a specific direction.

In physics, velocity is distinguished from speed, which is the magnitude of an object's velocity but without regard to its direction. Velocity is a more precise term than speed because it includes both magnitude and direction. For example, a car traveling at 60 km/h east has a different velocity than a car traveling at 60 km/h west.

Velocity is a fundamental concept in many areas of physics, including mechanics, thermodynamics, and electromagnetism. It is used to describe the motion of objects ranging from subatomic particles to celestial bodies in the universe.

The only option that shows a change in velocity is Ken driving on Interstate 4 at 65 mph. This is because velocity is a vector quantity that includes both speed and direction. As Ken is driving, he is changing his direction or speed, or both, which means his velocity is changing.

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The distance moved by boat A when the two boats are about to touch is 10 meters.

To solve this problem, we can use the principle of conservation of momentum. Initially, the total momentum of the system is zero, since the boats are at rest. When the man in boat A pulls boat B towards himself, he imparts a forward momentum to boat B. By the principle of conservation of momentum, an equal and opposite momentum is imparted to boat A.

We can use the equation:

m1v1 + m2v2 = (m1 + m2)v'

where m1 and v1 are the mass and velocity of boat A initially, m2 and v2 are the mass and velocity of boat B initially, and v' is the final velocity of both boats when they are about to touch.

Plugging in the given values, we get:

(400 kg)(0 m/s) + (400 kg)(0 m/s) = (400 kg + 400 kg)v'

v' = 0 m/s

This tells us that the final velocity of both boats is zero. We also know that the man in boat A pulls boat B a distance of 30 meters. Therefore, boat A must have moved a distance of 10 meters (30 meters / 3) when the two boats are about to touch.

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