light of wavelength 530 nm passes through a slit of width 0.220 mm. (a) the width of the central maximum on a screen is 7.60 mm. how far is the screen from the slit?

The force applied to the ball of mass 1kg is 16.9 N

The mass of the ball = 1 kg

The speed of the ball = 13 m/s

The distance traveled by the ball = 5 m

The formula to find the force applies is

               F = ma

where F is the force

          m is the mass

           a is the acceleration

The acceleration can be found using the formula,

               v² = u² + 2 ax

Let us rearrange the above equation,

               a = v² - u² / 2x

Let us substitute the known values in the above equation, we get

              a = (13² - 0²) / 2 x 5   [ Initial velocity of the ball is zero]

              a = 169 / 10

                 = 16.9 m/s²

Then the force applied is

         F = 1 x 16.9

            = 16.9 N

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Answer:

38

Explanation:

76 divided by 2 =38

When icing is detected, particularly while operating an aircraft without deicing equipment, the pilot should take immediate action to mitigate the effects of icing.

Icing can significantly affect the performance and safety of an aircraft by reducing lift, increasing drag, and disrupting control surfaces. When icing is detected, pilots should take proactive measures to minimize its impact. This may include adjusting the flight path to avoid areas of known or suspected icing, descending or climbing to a different altitude with more favorable temperature conditions, or diverting to an airport where deicing facilities are available. Additionally, pilots should activate any available anti-icing systems, such as pitot tube heaters or wing leading-edge heat, if equipped. They should also monitor and report icing conditions to air traffic control and other pilots to help improve situational awareness for all aircraft in the area.

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Answer: The force of gravity

Sure! Here are the steps for calculating the velocity and distance traveled by the car after 50 seconds :

Step 1: Calculate the velocity using the equation:

\(v = u + at\)

where:

- \(v\) is the final velocity

- \(u\) is the initial velocity (0 m/s, as the car starts from rest)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(v = 0 + (3 \, \text{m/s²}) \times (50 \, \text{s})\)

Step 2: Calculate the distance traveled using the equation:

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

where:

- \(s\) is the distance traveled

- \(u\) is the initial velocity (0 m/s)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(s = 0 \times (50 \, \text{s}) + \frac{1}{2} \times (3 \, \text{m/s²}) \times (50 \, \text{s})^2\)

Now, let's simplify these equations:

\(v = 3 \times 50\)

\(s = \frac{1}{2} \times 3 \times 50^2\)

Calculating the results:

\(v = 150\) m/s

\(s = 3750\) meters

Therefore, after 50 seconds, the car will have a velocity of 150 m/s and would have traveled a distance of 3750 meters.

The Second Law of Thermodynamics states that the total entropy of an isolated system can only increase over time.

Thermodynamics is the branch of physics that deals with the relationships between heat, work, temperature and energy. It is the study of how energy is converted from one form to another and how it is used to do work. Thermodynamics is concerned with the transfer of energy from one object or system to another and how that energy can be transformed or converted into different forms. It also explores the relationships between entropy, temperature, and energy. Thermodynamics can also be used to predict how systems will behave when exposed to a given amount of energy. Thermodynamics is a powerful tool used to understand the behavior of natural systems and to develop efficient technologies.

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Answer:

2h2+2o→2h2o is the answer

Answer:

2

1

2

Explanation:

Answer:

How will the electrostatic force be changed if the distance between two electric charges is tripled?

B) 3 times the original force

Non-linear springs are helical coil springs that produce erratic amounts of force when they are subjected to a working load or torque.

A linear spring will always move along a straight line with a constant slope. The connection between force and displacement in a nonlinear spring is nonlinear. A nonlinear spring force vs. displacement graph with a variable slope will be more complex than a straight line. A nonlinear spring is stretched a distance A, with its restoring force being given by F=kx3, where x represents the displacement from equilibrium. There is a mass m fastened to its end.

Question

A nonlinear spring is compressed horizontally. The spring exerts a force that obeys the equation F(x) = Ax^1/2, where x is the distance Ax , where x is the distance from equilibrium that the spring is compressed and A is a constant. A physics student records data on the force exerted by the spring as it is compressed and plots the two graphs below, which include the data and the student's best-fit curves.

a. From one or both of the given graphs, determine A. Be sure to show your work and specify the units.

b i. Determine an expression for the work done in compressing the spring a distance x. ii. Explain in a few sentences how you could use one or both of the graphs to estimate a numerical answer to part (b)i for a given value of x.

c. The spring is mounted horizontally on a countertop that is 1.3 m high so that its equilibrium position is just at the edge of the countertop. The spring is compressed so that it stores 0.2 J of energy and is then used to launch a ball of mass 0.10 kg horizontally from the countertop. Neglecting friction, determine the horizontal distance d from the edge of the countertop to the point where the hall strikes the floor

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Answer:

2.66 m/s² .

Explanation:

Initial velocity , u = 0 m/s

Final Velocity , v = 8 m/s

Time Taken , t = 3 s

So , Acceleration = (v-u)/t = (8 m/s - 0 m/s) /3 sec . = 8/3 m/s² = 2.66 m/s²

When electrons are emitted from the cathode, they can have zero velocity, one velocity, or a range of velocities depending on the conditions under which they are emitted.

For example, in a vacuum tube, electrons are emitted from the cathode due to thermionic emission and they typically have a range of velocities.

However, in a photoelectric effect experiment, electrons are emitted from the cathode due to the absorption of photons and they typically have a well-defined velocity determined by the energy of the incident photons.

Similarly, in a field emission experiment, electrons are emitted from the cathode due to a high electric field and they typically have a high velocity.

Therefore, the velocity of the electrons emitted from the cathode depends on the mechanism of emission and the conditions under which they are emitted.

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Dartmouth College was not established during the Great Awakening, while Princeton University, Brown University, and Rutgers University were founded during that time.

The Great Awakening was a religious revival that occurred in the American colonies during the 18th century. Among the notable colleges established during that time were Princeton University, Brown University, and Rutgers University. However, one of the colleges that were not established before the Great Awakening is Dartmouth College. Dartmouth College was founded in 1769, which is after the period of the Great Awakening. Therefore, the correct answer is Dartmouth College.

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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 85 × 5.5

We have the final answer as

Hope this helps you

Answer:

The oxygen atom shares one pair of valence electrons with each hydrogen atom.

Explanation:

Answer:

is 200 J

Explanation:

hope this is the right answer

The true statement about mitosis and meiosis is that DNA replication occurs before the division of the nucleus.

option B.

Meiosis is the type of cell division that creates egg and sperm cells.

Mitosis on other hand is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

The similarity between meiosis and mitosis is that both mitosis and meiosis take place in the cell nuclei, which can be observed under a microscope. So both occurs in the nucleus and DNA replication must occur before the division of the nucleus.

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Answer:

um d. but I am guessing this ans

Polaroid sunglasses work less effectively when lying on the side because they are designed to block horizontally polarized light, and the orientation changes when lying down, affecting their performance.

Polaroid sunglasses are designed to reduce glare by selectively blocking horizontally polarized light. When you are sitting upright, the sunglasses are aligned with the horizontal orientation of the light reflected off the lake's surface, effectively reducing the glare. However, when you lie down on your side, the orientation of the sunglasses becomes misaligned with the horizontally polarized light. As a result, the sunglasses are less effective in blocking the glare, allowing more horizontally polarized light to pass through the lenses. This diminished effectiveness is due to the change in the relative alignment between the polarization direction of the sunglasses and the orientation of the polarized light while lying down.

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Answer:

B. A large current forms, drops to zero, then a smaller current forms in the opposite direction

Explanation:

The results of Lionel observation about electromagnetic induction is as follows:

In the first step, a large current will form because of the fast or quick movement of the magnet into the right end of a solenoid that generates a  induces emf.

In the second step, the magnet was in rest position for 3 s so the current drops to zero because according to Faraday's law, no voltage will be generated if the magnet held stationary and no voltage means no current.

In the third step, smaller current forms in the opposite direction as the magnet is slowly moving away from the solenoid generating a smaller voltage.

Hence, the correct answer is "B."

Answer:

B

Explanation:

The average electric power consumption of a machine is 29.4 watt.

Kinetic Energy is defined as the object which has because of its motion.

It is represented as

K = 1/2 mv²

where,

K = Kinetic Energy

m = mass

V = Velocity

Now by putting the value we get the kinetic energy as

K = 1/2 mv²

= 0.5 × 0.3 × (7)²

= 7.35 J

It is given in the question that the machine throws 2 snowballs per second.

Poutput = 2 × 7.35

= 14.7 J/s

= 14.7 watt

According to the question the efficiency is given as 50%. So average electric power is

Avg. Electric power = 2 × 14.7

= 29.4 watt

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Answer:

21.2m/s

Explanation

Given data

P=6.36 x 10⁴kg·m/s.

M=3000kg

From the momentum expression

P=mv

v=p/m

Substitute

v=63600/3000

v=21.2m/s

Hence the Velocity is 21.2m/s

The speed of the truck is 21.2 m /s

Momentum is the product of the mass of the object and the velocity of the object. Therefore,

p = mv

where

m  = mass

v = velocity

m = 3000 kg

p = 6.36 x 104 kg·m/s.

lets find the velocity

6.36 x 10⁴  = 3000 × v

v = 6.36 x 10⁴ / 3000

v = 21.2 m / s

The speed of the truck is 21.2 m /s

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Answer: it is called a open circuit

Explanation:

Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

The measured initial kinetic energy (J) of the bullet is 158.70 J.

So, the correct answer is A.

We know that the initial kinetic energy (KE) of the bullet is given by:

KE = (1/2) mv²

Where,m = mass of the bullet

v = velocity of the bullet

So, the initial kinetic energy of the bullet can be calculated as:

KE = (1/2) mv²

KE = (1/2) (m) (v)²

To determine the initial kinetic energy of the bullet in Joules, we can use the formula KE = 1/2mv², where m is the mass of the bullet and v is its velocity.

From question 13, we know that the mass of the bullet is 0.023 g, which is equal to 0.023/1000 kg. We also know that its velocity is 330 m/s.

Plugging these values into the formula, we get KE = 1/2 x 0.023/1000 x (330)²= 158.7 J.

Therefore, the measured initial kinetic energy of the bullet is option A, 158.70 J.

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Answer:

The Desire for New Trade Routes

Extra:

European explorers found the New World by mistake; they were not looking to find new continents but new sea routes. Europeans mainly wanted to find better trade routes to China, India, and Southeast Asia.

please give brainliest if possible

CAR 1

Momentum = Mass/Velocity

M = 2100/20

M = 105 m/s^2

CAR 2

Momentum = Mass/Velocity

M = 2100/30

M = 70 m/s^2

Answer:

12 meters per seconds......

Explanation:

60/5=12

A  car travels from rest to 60 m/s in 5 seconds, so its acceleration is 12 m/\({s}^2\) (60-0/5), and the acceleration is calculated by subtracting the final from the initial and by diving with the time.

Acceleration is the unit that describes the change in velocity, such as the quickness or slowness of the car, and when the acceleration is very high, there is a high chance of colliding and an accident occurring, but this is important for vehicles such as sports cars and racing cars. While low acceleration is used in magnetic resonance imaging in the medical field, it is also used in the industrial sector for robotics, etc.

Hence, a car travels from rest to 60 m/s in 5 seconds, so its acceleration is 12 m/\({s}^2\) (60-0/5), and the acceleration is calculated by subtracting the final from the initial and by diving with the time.

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a. direct observations of stars that orbit it.

b. X-rays from material that is falling in.

c. strong radio emission from the region of the accretion disk.

These three pieces of evidence are commonly used to support the existence of a supermassive black hole at the center of the Milky Way. The orbits of stars near the center of the galaxy can be measured and used to infer the mass of the central object. X-ray emission from hot gas near the black hole's event horizon can also be observed, as can strong radio emission from material in the accretion disk around the black hole. The abundance of dark matter in the galaxy is not directly related to the existence of the black hole.

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Answer:

Weight

Explanation:

"An object will float if the buoyancy force exerted on it by the fluid balances its weight, i.e. if FB=mg F B = mg . But the Archimedes principle states that the buoyant force is the weight of the fluid displaced. So, for a floating object on a liquid, the weight of the displaced liquid is the weight of the object."

Hope this helps! :)