10. A thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 lines/cm. The resulting pattern is viewed on a distant curved screen that can show all bright fringes up to and including ±90. 0° from the central spot. What is the TOTAL number of bright fringes that will show up on the screen? A) 4 B) 5 C) 8 D) 9 E) 10

Answer:

The momentum of the steel ball is 0.28 kg m/sec.

Explanation:

The momentum of an object can be calculated using the formula: momentum = mass x velocity. In this case, the mass of the steel ball is 100 g, which is equivalent to 0.1 kg. The velocity of the ball is 2.8 m/sec. Plugging in the values into the formula, we get:

momentum = 0.1 kg x 2.8 m/sec

momentum = 0.28 kg m/sec

So the momentum of the steel ball is 0.28 kg m/sec.

According to the information we can infer that the relative humidity cannot be determined with only the dry bulb temperature and wet bulb temperature provided.

To determine the relative humidity, both the dry bulb temperature and the wet bulb temperature are needed. The dry bulb temperature represents the actual air temperature, while the wet bulb temperature represents the lowest temperature that can be achieved through evaporative cooling.

By comparing the dry bulb temperature with the wet bulb temperature using a psychrometric chart or calculation formula, the relative humidity can be determined. However, without the wet bulb temperature, it is not possible to accurately calculate the relative humidity. Therefore, the relative humidity in the room cannot be determined based on the given information of the dry bulb temperature alone.

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Answer: 15kg

Explanation:

F = ma ; Newtons 2nd of Motion

150 = m(10)

m = 15kg

Answer:

10s A horse with an average speed of 15 m/s run.

Hope it helps! :)

Bodily injury due to slips and falls is considered a physical hazard from conditions involving: surface residues.

In general, injuries can be caused by:

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Answer:

Explanation:

W = FΔx so filling in:

12 = F(30) so

F = .4N

Gamma decay is the production of extremely high-frequency electromagnetic radiation . Gamma decay is the right answer from all types of decay.

Gamma decay is the production of extremely high-frequency electromagnetic radiation in order to stabilize the unstable nucleus. You must be well-versed in the various energy levels found in an atom.

The Nucleus has its own amount of energy. Gamma decay is the nucleus' method of transitioning from a higher energy level to a lower energy level by emitting high energy photons.

Hence gamma decay is the right answer for all types of decay. Because photons have no mass.

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Answer:

D. gamma decay because photons have no mass

Explanation:

When a body is positively charged, it implies that there is positive as well as negative charge in the body but the positive charge is more than negative charge.

Most of the materials that make up our world are composed of atoms, which are made up of a nucleus containing protons and neutrons surrounded by electrons. When an atom loses or gains electrons, it becomes positively or negatively charged, respectively. This is because the number of protons in an atom, which determines its atomic number and chemical properties, does not change.

When there are more protons than electrons, the atom becomes positively charged, and when there are more electrons than protons, it becomes negatively charged.Positive charge is the property of a material that has lost one or more electrons and therefore has more protons than electrons. Positive charges repel other positive charges, while negative charges attract positive charges.

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Answer:

B

Explanation:

just answered that question

If the car heading south travels 50 miles farther than the car going east, how far does the car heading east travel travels  150.0 miles, the problem can be solved by the formula d = rt.

The used equation is d = rt, The equation states that the distance traveled is equal to the rate times the time. This equation can be used to calculate the distance traveled by an object, given that the rate and time are known. In this case, the rate was the same for both cars and the time was the same for both cars, allowing us to calculate the distance traveled by a car heading east. Since we know that the car heading south traveled 50 miles farther than the car going east, we can subtract 50 miles from the total distance of 200 mi to find the distance traveled by car heading east. This gives us a value of 150 mi, which can be rounded to the nearest tenth to give us 150.0 miles.

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Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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Explanation:

the answer is

s= 1.0032 J/ g .C

The specific heat of the metal is  1.0032 J/ g .C.

The quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree.

Putting above values in the equation we get,

      Cv = 5016/(500 x 10)

      Cv = 5016/5000

      Cv = 1.0032J/g .C

Thus , the specific heat of the metal is  1.0032 J/ g .C.

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Answer:

C.

Explanation:

the waves that have the shortest wavelength are gamma rays, and thus they are the most energetic because they must also have the highest frequency.

The idea behind World Jump Day is an interesting thought experiment, but it is not a feasible solution to counteract climate change.

According to Newton's Third Law, every action has an equal and opposite reaction. When 600 million people jump, they exert a force on the Earth, and the Earth exerts an equal and opposite force on them.

To estimate the net external force on the Earth-jumpers system, let's consider the forces involved. When people jump, they apply a force against the Earth, which is equal to their mass times the acceleration due to gravity.

Assuming an average mass of 70 kg per person, the force exerted by one person jumping would be roughly 686 N (70 kg * 9.81 m/s^2).

With 600 million people jumping, the total force would be 4.116 x 10^11 N (600,000,000 * 686 N).

However, the Earth has a mass of approximately 5.972 x 10^24 kg, making the Earth's weight 5.863 x 10^25 N (5.972 x 10^24 kg * 9.81 m/s^2).

Comparing the forces, it is evident that the force exerted by the jumpers is negligible in comparison to the Earth's weight. Moreover, since the forces are equal and opposite, the net external force on the Earth-jumpers system would be zero.

Therefore, this method would not be effective in moving the Earth to a larger orbit or mitigating global warming and climate change. Instead, focusing on reducing greenhouse gas emissions and developing sustainable energy sources would be more beneficial to combat climate change.

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Answer: C

emotional meaning

Explanation:

Baroque style in the Baroque period is an ancient way of variety of arts used to produce European uniqueness in many art works such as magnificence in sculpture, painting, architecture, literature, dance, music and drama.

The characteristic of the Baroque period that helped to achieve all these is the extravagant display of emotions and details orientation.

The gravitational force between them and the orbital speed of Jupiter is 4.385×10^23 N and 13.081 km/s.

Mass of Jupiter, m = 2 × 10^27 kg

Mass of Sun, M = 2 × 10^30 kg

the radius of Jupiter's orbit, R = 7.8 × 10^11 m

=> distance b/w Sun and Jupiter = radius of the Jupiter's orbit = R

Gravitational force b/w them = GMm/(R^2)

= (6.67 × 10^-11)×(2 × 10^30)×( 2 × 10^27) / (7.8 × 10^11)^2

= 4.385×10^23 N

since, centripetal force = centrifugal force

=> F = GMm/(R^2) = (mv^2)/R

=> v = √(GM/R) = 13.081 km/s

Gravitational force is a fundamental force in physics that governs the interactions between massive objects. According to Newton's law of gravitation, every object in the universe exerts a gravitational force on every other object, with the strength of the force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The gravitational force between two objects causes them to attract each other, with the direction of the force being along the line connecting the centers of the objects. The gravitational force is always attractive and never repulsive, and it is responsible for many phenomena in the universe, from the orbits of planets around the Sun to the motion of stars within galaxies.

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Complete Question:

The planet Jupiter of mass 2 x 1027Kg revolves around the sun of mass 2 x 10"kg in a circular orbit of radius 7.8 x 10''m. Calculate the gravitational force between them and the orbital speed of Jupiter.​

The velocity of the wind relative to the cyclist is determined as -15.3 km i - 3.5 km j.

The speed of the wind in x - direction and y - direction is calculated as follows;

v(w/c) = - 5 km(cos 45)i - 5km(sin45)j

v(w/c) = [- 3.5 i - 3.5 j ] km

velocity of wind with respect to cyclist = (-12 km i - 3.5 km i) - 3.5 km j

velocity of wind with respect to cyclist = -15.3 km i - 3.5 km j

Thus, the velocity of the wind relative to the cyclist is determined as -15.3 km i - 3.5 km j.

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Answer:

C: 3

Explanation:

Cause of the colors

A mixture is a substance comprised of two or more additional chemical compounds or substances that do not chemically combine. The number of elements in the mixture pictured is 3. The correct option is C.

A pure material known as an element is made up of just one type of atom and cannot be divided into two or more different substances. A compound is a pure substance that is created when two or more substances are mixed in a specific mass ratio.

According to this question, an image is given showing atoms of different colors. Each atom with the same color belongs to a single element. Since there are there colors, this means that there are three elements in the picture.

Thus the correct option is C.

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Answer:

When displacement vectors are added, the result is a resultant displacement. But any two vectors can be added as long as they are the same vector quantity. If two or more velocity vectors are added, then the result is a resultant velocity. If two or more force vectors are added, then the result is a resultant force.

To calculate the speed of an electron orbiting a proton with an orbital radius (r),  the orbital radius (r) and plug in the constants, you can calculate the speed of the electron.

1. Start with the centripetal force equation: Fc = (m*v^2)/r
2. Equate the centripetal force to the electrostatic force: (m*v^2)/r = k*(e^2)/r^2
3. Rearrange the equation to find the speed (v) of the electron: v = sqrt(k*(e^2)/(m*r))

In this equation, Fc is the centripetal force, m is the mass of the electron, v is the speed of the electron, k is the Coulomb's constant (8.9875 * 10^9 N*m^2/C^2), and e is the elementary charge (1.602 * 10^-19 C).

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Consider the pseudo code below, the output when input is "NCUCSIE" is (A) NCUCSIENCUCSIE.

The given pseudo code has a loop that iterates through each character of the given input and constructs a new string by adding each character twice. The output will therefore be a string that has each character repeated twice. For the given input "NCUCSIE", the output will be "NCUCSIENCUCSIE". Here is a step-by-step explanation of how the code works: Take input from the user. In this case, the input is "NCUCSIE".

Initialize an empty string called "result", literate over each character of the input string one by one. For each character, append it to the result string twice using the concatenation operator "+=". When all characters have been processed, the result string will contain each character repeated twice, output the result string. The correct answer for the given question is option (A) NCUCSIENCUCSIE.

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Answer:

mistakes are called. mutations. mutations are. changes in the sequence of DNA. mistakes can be made during the DNA replication process but DNA replication process has features that reduce mutations.

Explanation:

hope this helps

The rate of increase of the radius of the balloon is  0.12 cm/ sec.

The surface area of a strong object is a degree of the entire vicinity that the floor of the item occupies. The surface area is the general place at the floor of a 3-dimensional shape. To discover the floor location of a cuboid that has 6 square faces, upload the regions of all 6 faces. O

The volume of a sphere is 4/3πr^3

The rate of volume of the balloon is 24πcm^3/s

∴ the radius of the sphere at the volume of 24πcm^3= 4/3πr^3

dividing both sides by π

24= 4/3πr^3

multiply both side by 3/4

r^3 = 24×3/4

r^3= 18

r= √18

r= 2.62cm

∴ the rate of change in radius here is 2.62cm/s since π is constant.

The surface area of the sphere= 4πr^2

the surface area of the balloon is 30πcm^2

therefore 30π= 4πr^2

divide both sides by 4π

r^2= 30/4

r^2= 7.5

r=√7.5

r= 2.74cm

The rate of change in radius here is 2.74cm/s

Hence, the increase in the rate of change of radius is 2.74cm/s - 2.62 cm/s= 0.12cm/s

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Determine the smallest force P needed to lift the 3000-lb load.

Please note that the information provided is incomplete, as we need the dimensions of the wedges or the angles they form.

Assuming that the angles are given and that the wedges are symmetric, here's a step-by-step explanation using the provided terms "smallest force P," "coefficient of static friction," and "wedge."
1. Draw a free body diagram for each wedge (A and B).
2. Identify the normal forces acting on each wedge (N_A, N_B, N_C, and N_D).
3. Calculate the frictional forces acting on each wedge using the coefficients of static friction provided (0.3 for A-C and B-D, and 0.4 for A-B).
4. Write the equilibrium equations for each wedge in the horizontal and vertical directions (sum of forces in the x and y direction should be equal to zero).
5. Since we have a 3000-lb load, we can also write an equation for the sum of the vertical forces on both wedges being equal to 3000 lbs.
6. Solve the system of equations to find the normal forces (N_A, N_B, N_C, and N_D).
7. Determine the smallest force P required to lift the 3000-lb load using the equilibrium equations and frictional forces.

Please provide the angles or dimensions of the wedges to obtain a specific numerical answer for the smallest force P needed to lift the 3000-lb load.

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For A 100-cm long dipole is excited by a sinusoidally varying current with an amplitude i0=2 , the time average power radiated  is mathematically given as

P=0.1577w

Generally, the equation for the   is mathematically given as

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

Therefore

\(\lambda=\frac{3\times 10^{8}}{10^{6}}\)

lambda=300m

In conclusion, for the power

\(P=40\pi^{2}(I_{0})^{2}(\frac{l}{\lambda})^{2}\\\\P=40* (3.14)^{2}\times6^{2} (\frac{1}{300})^{2}\)

P=0.1577w

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The time-averaged power radiated by the dipole if the oscillating frequency is 150 MHz is 0.1577 w.

The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal carried in space or down a wire is defined as the wavelength.

Given that the current is 2 amp, while the frequency is 150 MHz. Therefore, the wavelength can be written as,

\(\lambda = \dfrac cf = \dfrac{3 \times 10^8}{10^6} = 300\rm\ m\)

Now, the power can be written as,

\(P=40 \pi^2 \times (I_o)^2 \times (\dfrac{l}{\lambda})^2\\\\P = 40 \times \pi ^2 \times 6^2 \times (\dfrac{1}{300})^2\\\\P = 0.1577\rm\ w\)

Hence,  the time-average power radiated by the dipole if the oscillating frequency is 150 MHz is 0.1577 w.

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Answer:

Newton first law

Explanation:

Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. The hockey puck moved because you hit it. ( tell me if I helped I hope you do good)

Answer:

Its upside down

Explanation:

I recommend asking a teacher for help