O uniform speed
37. Choose the best answer.
If you were told that a ship traveled from San Francisco to Honolulu, a distance of 3,841 km in 135.5 hours, what was the ship's speed?
127.13 km/h
28.35 km/h
34.98 km/h
15 km/h
Onone is correct

The intensity of the sound you hear at a distance of 280cm away from the tuning fork is 7.72 x 10⁻⁶ W/m².

The power carried by sound waves per unit area in a direction perpendicular to that area.

It is defined as the ratio of power and area.

I = P / 4πr²

Given is the radius 280 cm =  2.8 m and power 7.6 x 10⁻⁴ watt, then the sound intensity is

I =  7.6 x 10⁻⁴ / (4 x 3.14 x 2.8²)

I = 7.72 x 10⁻⁶ W/m²

Thus, the intensity of the sound you hear at a distance of 280cm away fr0om the tuning fork is 7.72 x 10⁻⁶ W/m².

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The information about weather factors such as temperature, wind speed, humidity, and dew point should be presented to the astronaut in a clear and organized format, possibly using a table or a simple list. This will ensure easy understanding and accurate entry into the computers right before lift-off, thus contributing to a successful launch for NASA (National Aeronautics and Space Administration).

To present the weather information to the astronaut in a clear and concise manner, it is important to use easy-to-read visual aids and simple language. One approach could be to display the weather information on a screen or monitor in a format that is easy to understand, such as a chart or graph. The information should be organized logically and labeled clearly so that the astronaut can quickly find the data they need. Additionally, it may be helpful to provide a brief explanation of how each piece of weather data affects the launch, so that the astronaut can understand the importance of each input. Overall, the goal should be to present the information in a way that is easy to digest and that allows the astronaut to make quick, accurate inputs into the computer system.

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A star's light curve demonstrates how that is brightness changes as time passes.

Duration is the length of time, either measured or unmeasured, that an action, process, and situation lasts or continues. a nonspatial continuum defined as the succession of events from the past through the present and into the future.

However, Einstein proposed the idea of eternity as the three - dimensional space, indicating the irreducible connection between space and time. His relativity general theory (opens in new tab) postulates that the momentum and mass of adjacent matter determine how much space-time expands and contracts.

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The reaction constant or variable (1). Variable, because the slope changes as a function of time is the correct option.

Option 1 is the best choice given the available data, as the reaction's rate is varied as a result of the slope changing with time. When discussing a chemical reaction's rate, it is important to note that as the concentrations of reactants and products change over time, the rate can also fluctuate. The rate of a reaction is frequently calculated from the slope of a plot of reactant or product concentration vs time. However, this slope might change during the course of a reaction, indicating that the rate is variable rather than constant.

Therefore, the correct option is (1).

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Answer:

ms jones is a good song poggers

Explanation:

The technician can determine the voltage drop at a gas furnace by using a voltmeter. Here is a step-by-step process to measure the voltage drop:

Set the voltmeter to measure AC voltage if the gas furnace operates on AC power. If the furnace operates on DC power, set the voltmeter to measure DC voltage.

Identify the two points in the furnace circuit where you want to measure the voltage drop. For example, you may want to measure the voltage drop across a particular component like a resistor or a switch.

Connect the voltmeter probes to the two points in the circuit where you want to measure the voltage drop. Ensure that the positive probe is connected to the point with higher potential (higher voltage) and the negative probe is connected to the point with lower potential (lower voltage).

Turn on the furnace and observe the voltmeter reading. The voltmeter will display the voltage difference between the two points in the circuit.

If the voltmeter reading is zero or very low, it indicates a negligible voltage drop across the component. If the reading is significantly higher than zero, it suggests a substantial voltage drop.

Repeat the process for different components in the furnace circuit to determine the voltage drops across them.

By using a voltmeter and following the steps mentioned above, a technician can accurately measure the voltage drop at various points in a gas furnace circuit. This information helps identify potential issues and ensures the furnace operates efficiently.

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The magnitude of the acceleration due to the gravity on the surface of planet X is 4 m/s².

From Newton's second law:

The net force is directly proportional to the product of mass and acceleration of the body.

From the given,

mass of the planet X = 10 kg

Weight of the planet X = 40 N

acceleration of the planet (a) =?

W = m×a

a = W / m

 = 40 / 10

 = 4 m/s²

Hence, the acceleration of planet X is 4 m/s².

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(a) To find the speed of the water leaving the end of the hose, we can use the equation Q = Av, where Q is the volumetric flow rate, A is the cross-sectional area of the hose, and v is the velocity of the water.

Given that the diameter of the hose is 2.72 cm, we can calculate the radius as r = d/2 = 1.36 cm = 0.0136 m. The cross-sectional area of the hose is then A = πr^2.

The volume of water that fills the bucket in 1.20 min is 23.0 liters, which is equal to 0.023 m^3 (1 liter = 0.001 m^3). The time can be converted to seconds as 1.20 min = 72 s.

Substituting the values into the equation, we have Q = (0.023 m^3) / (72 s) = 0.000319 m^3/s.

To find the velocity v, we rearrange the equation to v = Q / A. Substituting the values, we get v = (0.000319 m^3/s) / (π(0.0136 m)^2) ≈ 1.287 m/s.

Therefore, the speed of the water leaving the end of the hose is approximately 1.287 m/s.

(b) If the nozzle diameter is one-third the diameter of the hose, then the radius of the nozzle is r_n = (1/3) * 0.0136 m = 0.00453 m.

The cross-sectional area of the nozzle is A_n = πr_n^2.

Using the same equation Q = Av, but now with the area of the nozzle, we have v_n = Q / A_n = (0.000319 m^3/s) / (π(0.00453 m)^2) ≈ 9.68 m/s.

Therefore, the speed of the water leaving the nozzle is approximately 9.68 m/s.

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A change in the magnetic field surrounding the conductor induces a voltage in the conductor, this induced voltage is known as Self-Inductance.

In order to cause a current to flow as a result of a shifting magnetic field, a process known as electromagnetic induction must be used.

A current will be induced in a coil of wire if the coil is placed in a magnetic field that is changing. Since there is an electric field causing the charges to be forced around the wire, current is flowing as a result. Since the charges are initially stationary, it cannot be the magnetic force.

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Answer:1

Explanation:t=rad2h/g

The launch of projectiles allows to find the height of the body launched horizontally is:

Projectile launching is an application of kinematics where there is no acceleration on the x-axis and the y-axis is the gravity acceleration.

In the attachment we see a diagram of the movement, as the body is thrown horizontally, its initial vertical speed is zero.

           y = y₀ + \(v_o_y\) t - ½ g t²

Where y, y₀i are the current and initial heights, respectively, \(v_{oy}\) the vertical initial velocity, g the acceleration of gravity and t the time.

           0 =y₀ + 0 - ½ g t²

           y₀ = ½ g t²

let's calculate

           y₀ = ½ 9.8 4.5²

           y₀ = 99.2 m

          y₀ = h = 99.2 m

This is the initial height of the object when it is thrown.

In conclusion using the projectile launch we can find the height of the horizontally launched body is:

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If you run off the pavement, you should turn the steering wheel quickly toward the road and is denoted as option C.

This is a path which is found in almost all roads and is designed to enhance foot traffic in most climes. This is the path where individuals walk so as not to get hit down by a vehicle.

In a situation where a car runs into the pavement, the best choice is to turn the steering wheel quickly toward the road as braking hard could damage the brakes of the car and cause accident in subsequent trips.

This is therefore why option C was chosen as the correct choice.

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Answer: Steer straight and slow down before attempting

Explanation:

To identify the first-row transition metal that satisfies the given requirements, The first-row transition metals include elements from Scandium (Sc) to Zinc (Zn). Each of these elements has unique properties and characteristics.

The first-row transition metals consist of elements from Scandium (Sc) to Zinc (Zn) in the periodic table. These elements are characterized by their partially filled d-orbitals and exhibit various properties such as high melting and boiling points, variable oxidation states, and the ability to form colored compounds. Each transition metal in this range has its own atomic number, electron configuration, and unique set of properties. Therefore, without specific criteria or requirements, it is not possible to determine which transition metal satisfies the given conditions. By providing more details, such as desired chemical properties or specific characteristics, it would be easier to identify the suitable transition metal.

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Planet A exerts a force on planet B, the magnitude and direction of the gravitational force planet B exerts on planet A the gravitational force exerted by planet B on planet A is the same as the magnitude of the gravitational force exerted by planet A on planet B

Newton's third law states that if object A exerts a force on object B, then object B exerts an equal and opposite force on object A. Hence, if planet A exerts a gravitational force on planet B, then planet B exerts an equal and opposite gravitational force on planet A.The magnitude of the gravitational force exerted by planet B on planet A is the same as the magnitude of the gravitational force exerted by planet A on planet B, this is according to the law of universal gravitation,

This law states that the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. The direction of the gravitational force exerted by planet B on planet A is towards planet B's center, just as the direction of the gravitational force exerted by planet A on planet B is towards planet A's center. Therefore, we can say that the magnitude and direction of the gravitational force planet B exerts on planet A is equal and opposite to the gravitational force planet A exerts on planet B

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Given 60 feet of wall wire to enclose three pens, with one side being a wall, you can allocate the wire as follows: use 30 feet for the outside fencing (divided into 3 strands of wire) and 10 feet for each of the inside dividers.

Let's break down the wire allocation for the three pens. Since one side is already a wall and doesn't require fencing, we can distribute the remaining wire to the other sides. The outside fencing requires 3 strands of wire, so we allocate 30 feet for the outside fencing, with each strand being 10 feet long.

For the inside dividers, we have two dividers for three pens. Since each divider separates two pens, we need 10 feet of wire for each divider. Therefore, in total, we allocate 10 feet for each inside divider.

By allocating 30 feet for the outside fencing (3 strands) and 10 feet for each inside divider, we effectively use all 60 feet of wall wire to enclose the three pens as specified.

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You have 60 feet of wire to enclose three pens. Wall (no fence needed) One side is a wall that needs no fence. The outside fencing (thick lines) requires 3 strands of wire. х The inside dividers (thin lines) require 1 strand of wire. y What values for x and y will create a fence that encloses the maximum total area for the pens? y = Enter each answer as a whole number or as a reduced fraction (such as 4/5, 35/4 or 11/2).

Answer:

Then there is no acceleration.

Explanation:

The main difference between a mission and a vision is that a mission defines a company's purpose, while a vision outlines its long-term goals.

The five characteristics of a vision are:

Inspiring: A vision should be inspiring and give people something to strive for. The primary difference between vision and mission is that the former defines the company's ultimate goal, whereas the latter outlines the company's strategic path to accomplishing that goal. A mission statement is a brief statement that summarizes an organization's core goal, competitive benefit, and guiding principles. It is a short, straightforward declaration of what a company intends to achieve in the long run.

A vision statement, on the other hand, is a forward-thinking declaration of where the company hopes to be in the future. It describes the company's aspirations and anticipations. In this answer, we will describe the five characteristics of a vision.

Five characteristics of a vision:

1. Clear and concise: A vision statement should be short, understandable, and to the point.

2. Realistic: It should be achievable while also being challenging.

3. Time-bound: It should have a timeframe within which it must be accomplished.

4. Flexible: It should be adaptable to shifting market dynamics, environmental conditions, or technological advancements.

5. Inspiring: It should motivate and engage staff, customers, and stakeholders.

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Explanation:

laws of motion

H=ut + 0.5gt^2

but u(initial velocity)=0 and g=10m/s^2

H=5t^2

=5×10^2

=5 × 100

=500m

Answer: 1 st law of motion

Explanation:

Given

The bike hits the pothole and the driver flies over the handlebar. This can be explained by Newton's first law of motion. This law states that a body in the state of rest or motion will remain in that state unless an external force is applied to it.

Here, the bike instantly comes to rest by contacting the pothole which is at rest. while the driver body continues to move in forward direction and as a result it flies over the handlebars.

Given data:

* The mass on the frictionless table is,

* The mass hangs freely from the string is,

* The hanging mass falls a distance is,

Solution:

(1). The normal force of mass on the frictionless table is,

As the displacement of the mass m_1 on the frictionless table is in the hroizontal direction.

Thus, the work done by teh normal force is,

As both the normal force and displacement are perpendicuular to each other.

Thus, the work done by the nromal force on the mass m_1 is,

Thus, the work done by the normal force on m_1 is zero.

To find the value of ro, the inner radius of the spiral track on the CD, we need to use the given information and equations provided.

Let's convert this to millimeters, as the units of ro are in millimeters:

1.55 μm = 1.55 × 10^(-3) mm

To calculate the angular acceleration, we'll differentiate the equation of the spiral with respect to time:

dr/dθ = d(ro + 30)/dθ

=> 0 = d(ro)/dθ

Since the angular speed (dθ/dt) is constant, the derivative of ro with respect to time (d(ro)/dt) must be zero.

Given that ro is the inner radius of the track, we can express ro in terms of θ and then differentiate with respect to time:

=> ro = 25.0 mm + 30

ro = 55.0 mm

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Answer:

9s

Explanation:

v=u+at

36=0+4t

t=36-0/4

t=9s

The work required to pump the water out of the spout is 384000 J.

Given data:

Height of triangular tank, h = 4 m

Width of triangular tank, w = 4 m

Length of triangular tank, l = 6 m

Height of spout, h1 = 4 m

Weight density of water, ρ = 1000 kg/m³

Acceleration due to gravity, g = 9.8 m/s²

Volume of triangular tank = 1/2 × length × breadth × height of tank= 1/2 × 6 × 4 × 4 = 48 m³

Weight of water in the tank = Volume of water × weight density of water= 48 × 1000 = 48000 kg

Distance between the spout and the base of the tank = (4 + 4) = 8 m

Work done in pumping the water out of the spout = weight of water in the tank × height of spout= 48000 × 8= 384000 J

Therefore, the work required to pump the water out of the spout is 384000 J.

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(a). The possible values for the magnitude of P that allows the block to remain stationary are 0 ≤ P ≤ 24.6 N.

(b). If the absolute value of P has a larger value than 24.6 N, the block will start to slide down the wall. If it is smaller than the minimum value of 0 N, the block will not remain stationary and will fall.

(c). The possible values for the magnitude of P that allows the block to remain stationary are 0 ≤ P ≤ 98.2 N. If the absolute value of P has a larger value than 98.2 N, the block will start to slide down the wall. If it is smaller than the minimum value of 0 N, the block will not remain stationary and will fall.

(a) The force of static friction on the block is given by f_s = μ_s N, where μ_s is the coefficient of static friction and N is the normal force on the block. Since the block is stationary, the net force on it is zero. The forces acting on the block are its weight mg acting vertically downwards, the normal force N acting perpendicularly to the wall, and the force P acting at an angle of 50.0∘ to the horizontal.

Resolving the forces in the horizontal and vertical directions, we get:

∑F_x = P cos(50.0∘) = f_s = μ_s N

∑F_y = N - P sin(50.0∘) - mg = 0

Solving for N and P, we get:

N = mg / cos(50.0∘)

P = (μ_s mg / cos(50.0∘)) / cos(50.0∘ - arctan(μ_s))

Substituting the given values, we get:

N ≈ 4.61 N

P ≈ 24.6 N

(c) Using the same method as in part (a) but with the force making an angle of 13.0∘ to the horizontal, we get:

N = mg / cos(13.0∘)

P = (μ_s mg / cos(13.0∘)) / cos(13.0∘ - arctan(μ_s))

Substituting the given values, we get:

N ≈ 29.0 N

P ≈ 98.2 N

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Answer:

C

Explanation:

thats what i think it depends on the amount of force someone dropped the ball with.

Answer: A) "Less than 60 centimeters, as the ball transforms a part of its potential energy into heat energy"

Explanation:

I took the test

Answer:

?

Explanation:

The speed of the Toyota at impact can be calculated using kinetic friction  which is equal to 7.9 m/s

The speed of the Toyota at impact can be calculated using the coefficient of kinetic friction.

The equation for the speed is: speed = √(2fμd), where f is the force of the impact, μ is the coefficient of kinetic friction, and d is the distance that the cars skid.

In this case, the force of the impact can be calculated by multiplying the masses of the two cars together, which comes to

4.4 x 10³ kg. With μ = 0.4 and d = 2.8 m

The speed of the Toyota at impact can be calculated to be 7.9 m/s.

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Answer:

6

.40 recharge

1.0v

45.0v

The magnitude of their mutual gravitational force when they are separated by a distance of 18.3 cm is 0.000017 N.

When two particles weigh 1.07 N each, the magnitude of their mutual gravitational force when they are separated by a distance of 18.3 cm is 0.000017 N.

The gravitational force between two particles is determined by the masses of the particles and the distance between them.

The following equation is used to calculate the magnitude of the gravitational force: Fg = G(m1m2 / r^2)

where Fg is the magnitude of the gravitational force,

G is the gravitational constant (6.67 x 10^-11 Nm^2/kg^2),

m1 and m2 are the masses of the particles, and

r is the distance between the particles.

In this question, the masses of the two particles are given as 1.07 N each, and the distance between them is 18.3 cm, which is equal to 0.183 m. Plugging these values into the equation,

we get: Fg = (6.67 x 10^-11 Nm^2/kg^2) x (1.07 N) ^2 / (0.183 m) ^2Fg = 0.000017 N

Therefore, the magnitude of their mutual gravitational force when they are separated by a distance of 18.3 cm is 0.000017 N.

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The motor could  lift 15 g in a time of 8 seconds 10884 meter.

The quantity of energy moved or converted per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.

Given that motor operates at 200 W.

At time interval of 8 second, it do a work = 200×8 joule = 1600 joule.

Hence,  it lift 15 g in a time of 8 seconds = 1600/(0.015×9.8) meter

= 10884 meter.

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