Buoyant force is greatest on a submerged
a) 1-kg block of lead
b) 1-kg block of aluminum
c) is the same on each

So, their net force on the object is 50 N in a forward direction from the first person.

Hi ! Here, I will help you with the net forces (results of forces) acting on a two-dimensional area and in opposite directions. Steps that can be taken are as follows :

The equation for calculating the net force from this two-dimensional straight line is as follows:

\( \boxed{\sf{\bold{\sum F = F_1 + F_2 + ... + F_n}}} \)

With the following condition :

We know that :

In my mind, I determined that the force will go to forward direction from the first person. So :

What was asked :

Step by step :

\( \sf{\sum F = F_1 + F_2} \)

\( \sf{\sum F = 200 + (-150)} \)

\( \sf{\sum F = 200 - 150} \)

\( \boxed{\sf{\sum F = 50 \: N} \)

The movement of the object is forward (from the first person) because the net force value that I calculated is not opposite (with negative sign) to the right direction. So, their net force on the object is 50 N to the forward direction from first person.

The remote PIC/visual observer could make a call on the Common Traffic Advisory Frequency (CTAF) to alert the manned pilot by stating the position of the UAV and the altitude it is flying at.

The call could go something like this: "Attention all aircraft on CTAF, this is [call sign of UAV]. We have a manned aircraft approaching our area from the west and flying just north of the area from west to east at [altitude].

Please be aware of our UAV operations and take necessary precautions to avoid any potential conflicts." This call should be made in a calm and clear manner, ensuring that the manned pilot understands the situation and can take appropriate action to avoid any collisions or safety hazards.

It is important to maintain situational awareness and communicate effectively to ensure safe operations of both manned and unmanned aircraft in the airspace.

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The light  reflected from the back surface (side of angle of incidence) will travel farther than the light reflected from the front surface.

Reflection of light is the ability of light to bounce back when it strikes a smooth surface.

For a surface of a given thickness, the speed of the light will decrease once it strikes such surface.

n1sin(Фi) = n2sin(Фr)

where;

Thus, for a film of thickness d, and incident angle of 90 degrees, the light  reflected from the back surface (side of angle of incidence) will travel farther than the light reflected from the front surface.

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For Kepler's third law this can be solved as normal ratios

The number of asteroids which will be detected during the second measurement is 1333.34.

These are referred to objects which revolve round the sun and are characterized by their small rocky shape.

Kepler's third law can be used to solved it using normal ratios

1000/60=x/80

100/6 = x/80

6x = 8000

x= 8000/6

x=1333.34asteroids

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No external energy is needed for a spontaneous response to move ahead. Temperature and pressure are constant under standard settings.

A reaction that releases free energy and is hence spontaneous has a negative value for G. Positive G reactions are not spontaneous and do not favour the items.

Because the forward reaction's products are preferred at equilibrium, the forward reaction occurs spontaneously. Water and carbon dioxide are the reactants in the reverse reaction, while carbonic acid is the result.

A reaction must meet two requirements in order to be spontaneous: it must reach its maximum energy and its minimum energy. A spontaneous is the time evaluation in thermodynamics. Spontaneous processes are those that involve a system's entropy.

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The mass will travel 28 m distance before coming to rest.

There are three equations of motion. We will use the second equation of motion to find the distance traveled by the object before rest.

When an object is moving up the plane, there is the force of gravity acting downward on the object. So, acceleration in the object is acceleration due to gravity.

We are given,

Initial speed = 8.5 m/s2

angle with horizontal = 25°

Final speed = 0

Acceleration = g sin25

We use equation of motion to find final distance.

\(V_{f ^{2}\) = \(V_{i^{2}\) + 2a ( \(x_{f\) - \(x_{i\) )

0   = \(8.5^{2}\) + 2 × 9.8 sin 25 (\(x_{f\) - 0)

0 = 72.25 + 19.6 (-0.132)  \(x_{f\)

\(x_{f\) = 72.25÷2.58= 28 m

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Answer:

hola

Explanation:

Answer:

Graph 2

Explanation:

The critical angle of incidence for Lucite is approximately 41.8 degrees. The critical angle is the angle of incidence at which light is refracted at an angle of 90 degrees.

The means that it travels along the boundary of the two media rather than crossing it. It can be calculated using the following formula: Critical angle = sin^-1(n2/n1), where n1 is the refractive index of the medium in which the incident light is traveling, and n2 is the refractive index of the medium it is approaching. In this case, the incident medium is air, with a refractive index of approximately 1.00. Therefore, we can plug in the values:

critical angle = sin^-1(1.00/1.50)

critical angle = sin^-1(0.6667)

critical angle ≈ 41.8 degrees

So the critical angle of incidence for Lucite is approximately 41.8 degrees.

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Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

The form of energy  that is transferred as waste energy by the television set is heat energy (80 J).

Based on the law of  conservation of energy, energy can neither be created nor destroyed but can be converted from one form to another.

The useful energy supplied to television set is calculated as follows;

= 119 J + 1 J = 120 J

The wasteful energy of the television set is calculated as follows;

= 200 J - 120 J = 80 J

Thus, the form of energy  that is transferred as waste energy by the television set is heat energy (80 J).

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Answer:

Climate is determined by averaging the seasonal weather conditions for a region over a period of many ______ years

Choose the correct association for: dense bushes rain forest or jungle

Choose the correct association for: plains savanna

Answer:

B.) decreased attention span

Explanation:

took the test and got 100%

The ground state of an atom refers to the lowest energy level occupied by its electrons. In the case of Calcium (Ca), Oxygen (O), and Nickel (Ni), the values of their respective total orbital angular momentum (L), total spin (S), and total angular momentum (J) can be determined by applying Hund's rules and the Pauli exclusion principle.

For Ca, the electron configuration of the ground state is 1s2 2s2 2p6 3s2 3p6 4s2. Since the 4s orbital is the highest energy level occupied, the total orbital angular momentum (L) is equal to 0. The total spin (S) is equal to 1/2, as there are two unpaired electrons in the 4s orbital. The total angular momentum (J) is therefore equal to 1/2.

For O, the electron configuration of the ground state is 1s2 2s2 2p4. The total orbital angular momentum (L) is equal to 1, as there are two unpaired electrons in the 2p orbital. The total spin (S) is equal to 1, as there are two unpaired electrons with opposite spins in the 2p orbital. The total angular momentum (J) is therefore equal to 0, since L and S cancel out.

For Ni, the electron configuration of the ground state is 1s2 2s2 2p6 3s2 3p6 4s2 3d8. The total orbital angular momentum (L) is equal to 2, as there are eight unpaired electrons in the 3d orbital. The total spin (S) is equal to 1, as there are two unpaired electrons with opposite spins in the 3d orbital. The total angular momentum (J) is therefore equal to 3, since L and S combine.

In summary, the values of L, S, and J in the ground state of Ca, O, and Ni can be determined by analyzing their electron configurations and applying the appropriate principles. These values provide insights into the behavior and properties of these elements in chemical reactions and other physical processes.

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Answer:

u gotta draw a square a cloud and a drink for the visuals

Explanation:

Specialty stores compete on the basis of low prices, high turnover, and high volume, this statement if false.

Specialty stores typically compete based on factors other than low prices, high turnover, and high volume. Specialty stores differentiate themselves by offering unique, high-quality, or niche products to target specific customer segments. They often focus on providing a curated selection of merchandise, personalized customer service, and expertise in their specific product category.

While competitive pricing and turnover can still be important, the primary emphasis is on providing specialized products and a unique shopping experience rather than competing solely on low prices, high turnover, and high volume.

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Answer:

The momentum of the ball is 500 kg·m/s

Explanation:

The momentum is given by Mass × Velocity

The given parameters are;

The mass of the box = 10 kg

The velocity by which the box is sliding = 50 m/s

Therefore, the momentum of the ball is given as follows;

The momentum of the ball = 10 kg × 50 m/s = 500 kg·m/s

The momentum of the ball = 500 kg·m/s

Sputnik 1, the first man-made satellite, was released by the Eastern Bloc on October 4, 1957, as part of the Sputnik project, with Sergei Korolev serving as the program's primary designer.

There are a large number of satellite in use. They serve several functions, including the Satellite Navigation System, amateur radio, television transmission, and weather prediction. In order to conduct studies and acquire data, they also employ telescopes to gaze outwards at the solar system.

Natural and artificial satellite are two distinct categories. The Earth and the Moon are two examples of organic satellites. The Moon orbits the earth while the Earth revolves around the Sun.

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The scenario involves a mass of 300 kg and an acceleration of 10 m/s² then the roller coaster requires 3000N of effort to stop.

The formula F = m × a, where F is the force, m is the mass, and an is the acceleration, can be used to determine the force acting on the roller coaster. This scenario involves a mass of 300 kg and an acceleration of 10 m/s². The force will so be:

F = 300 kg × 10 m/s² = 3000 N

When the mass and acceleration are known, this equation can be used to determine how much force is needed in any circumstance. It can be applied to figure out the forces in any circumstance where an object is accelerating, whether it's doing so positively or negatively.

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Answer:

4 seconds

Explanation:

The frequency of a body is the number of oscillations in one second. It is the number of cycles per unit time. The S.I unit of frequency is the Hertz (Hz).

The period of a body is the time taken to complete one oscillation. The period is inversely proportional to the frequency of the body. It is the reciprocal of frequency and the S.I unit is second (s).

A body oscillates with 25hz. Therefore the frequency (f) = 25 Hz.

The period (T) is given as:

\(Period (T)=\frac{1}{frequency(f)} \\T=\frac{1}{f} =\frac{1}{0.25}=4\\T=4\ seconds\)

The work done on the lever by the input force is 1 J. Similarly the work done by the output force is 3 J. Here the output is greater than the input work which is not possible since all the energy given to the system cannot be converted as work done.

Work done is the product of force and displacement. When a force applied on a body is resulted in a displacement, the force is said to be done  work on the body.

Work done is a vector quantity and is characterized by a magnitude and direction. The force applied on the lever have to be 10 N over a distance of 0.1 m.

then work done = F. ds

w = 10 N × 0.1 m = 1 J

The output force = 1 N

distance = 3 m

work done by the body = 1 N × 3 m = 3 J

It is generally impossible to generate a machine with an efficiency of 100%. Thus output work done cannot be greater than the input work.

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The velocity of the object that falls for 4 seconds will be 39.2 m/s, which is 29.4 m/s greater than the object that falls for 1 second.

The velocity of a falling object increases over time due to the acceleration caused by gravity. The acceleration due to gravity on Earth is approximately 9.8 meters per second squared (m/s²).

To calculate the difference in velocity between an object that falls for 4 seconds and one that falls for 1 second, we can use the equation:

Velocity = Acceleration × Time

For an object falling for 1 second:

Velocity₁ = 9.8 m/s² × 1 second = 9.8 m/s

For an object falling for 4 seconds:

Velocity₂ = 9.8 m/s² × 4 seconds = 39.2 m/s

The velocity of the object that falls for 4 seconds will be 39.2 m/s, which is 29.4 m/s greater than the object that falls for 1 second.

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Answer:

intensity

Explanation:

When a photoelectric effect is observed, the number of electrons ejected is proportional to the intensity of the incident light. However, the maximum kinetic energy (KEMAX) of the photoelectrons is independent of the light intensity.

Answer: Potential energy

Explanation:

Any form of stored energy is called potential energy. (option b)

Potential energy can come in various forms. Gravitational potential energy is associated with an object's position concerning the Earth's gravitational field. The higher the object, the more potential energy it possesses. Elastic potential energy is stored in objects like springs or rubber bands when they are compressed or stretched. Chemical potential energy is stored in the bonds between atoms and molecules in substances like food or fuel.

Remember, potential energy is a concept that helps us understand the ability of an object or a system to perform work or change its state based on its position or condition.

Hence the correct option is (b).

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Complete Question:

Any form of stored energy is called ______ energy

a) Solar

b) Potential

c) Wind

Answer:

lever is the correct answer to the given question .

Explanation:

The main purpose of  wheel and  axle to Migrating the particles as well as elevate the objects and the people.The wheel is the rounded disk or it may be the the rectangular outer part and the axle is the curved cylinder.

The maximum electric field strength if the wave is traveling in a medium in which the speed of the wave is 0.75c is 4 × 10^2 V/m.

The electric field strength can be calculated using the formula E = cB, where c is the speed of light and B is the magnetic field strength. Substituting the values, we get E = (3 × 10^8 m/s) × (5 × 10^−6 T) = 1.5 × 10^2 V/m.

However, since the wave is traveling in a medium in which the speed of the wave is 0.75c, the electric field strength will be different. The speed of the wave in the medium affects the relationship between the electric and magnetic fields. When the speed of the wave decreases, the electric field strength increases and vice versa.

To calculate the electric field strength when the speed of the wave is 0.75c, we need to use the formula E = (c/v)B, where v is the speed of the wave in the medium. Substituting the values, we get E = (3 × 10^8 m/s / 0.75c) × (5 × 10^−6 T) = 4 × 10^2 V/m.

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To get a maximum velocity of 2.30 m/s, the pendulum has to be released at an angle of 42.83°. The length of the pendulum required to get a period of 1.00 s is 0.620 m.

Given that: Length of pendulum is 2.50m, mass of mass is 0.500kg, gravity is 9.80m/s², maximum velocity of 2.30 m/s.

The maximum velocity of a simple pendulum is given by;`v = √(2gh)`

Where h is the vertical distance from the rest position, `g = 9.80m/s²` and `h = L - Lcosθ` where L is the length of the pendulum.

Therefore;`2.30 = √(2×9.8×(2.5 - 2.5cosθ))`

Squaring both sides;`5.29 = 19.6(1 - cosθ)`

Dividing by 19.6;`cosθ = 0.73`

Taking the inverse cos of both sides;`θ = 42.83°`

Therefore, to get a maximum velocity of 2.30 m/s the pendulum has to be released at an angle of 42.83°.

The period is given by;`T = 2π √(L/g)`

Rearranging to find L;`L = (T²g)/(4π²)`

Substituting `T = 1.00s` and `g = 9.80m/s²`:`L = (1.00² × 9.80)/(4 × π²)`

Therefore;`L = 0.620m`

Hence the length of the pendulum required to get a period of 1.00s is 0.620m.

Answer:To get a maximum velocity of 2.30 m/s, the pendulum has to be released at an angle of 42.83°. The length of the pendulum required to get a period of 1.00 s is 0.620 m.

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Answer:

Explanation:

The electric force F exerted by the field on the positive charge is F = qE

where q is electric charge and E is electric field.

E=F/q=5 *10^-16/4*10^-15=1.25*10^-1 =  0.125N/C

Answer:

We can use Coulomb's law to solve this problem:

F = k * q1 * q2 / r^2

where F is the force between the two charges, k is Coulomb's constant (k = 9 x 10^9 N m^2 / C^2), q1 and q2 are the magnitudes of the charges, and r is the distance between them.

We know the force F, the distance r, and the magnitude of one of the charges q1. We can rearrange the equation to solve for the magnitude of the other charge q2:

q2 = F * r^2 / (k * q1)

Substituting the values we have:

q2 = (250 N) * (0.15 m)^2 / (9 x 10^9 N m^2 / C^2 * 6.5 x 10^-5 C)

Simplifying:

q2 = 8.65 x 10^5 C

Therefore, the magnitude of the other charge is 8.65 x 10^5 C.

Expand the left hand side using distributive property:

Add 50 to both sides:

Divide both sides by 10:

Answer:

x = 13