A fisherman has caught a fish on his pole, and to keep the pole steady he has to apply an upward force of F2 = 235 N at an angle of 60.5° with respect to the pole (see figure). The length of his pole is 3.5 m, and he is holding it a distance 0.45 m from the end, where he is applying a downward force F1.
Randomized VariablesF2 = 235 N
θ = 60.5°
L = 3.5 m
d = 0.45 m

Answer:

The car's average acceleration points due west.

Explanation:

Resolving the acceleration will give a resultant due west

The angular velocity is 3.75 m/s and the centripetal force is 225 N respectively.

The angular velocity of an object with respect to some extent is a degree of the way rapid that item actions through the point's view, within the feel of the way speedy the angular function of the item modifications. An instance of angular pace is a ceiling fan. One blade will whole a complete round in a certain amount of time T, so its angular speed with respect to the middle of the ceiling fan is twoπ/T.

Calculation:-

A. angular velocity ω = v/r

                                     = 30 /8

                                      = 3.75 m/s

B. Centripetal force = mv²/r

                             = 2×30²/8

                              = 225 N

There are 3 formulations we will use to find the angular velocity. the primary comes instantly from the definition. The angular pace is the rate of alternate of the position attitude of an object with respect to time, so w = theta / t, in which w = angular pace, theta = position attitude, and t = time.

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Answer:

false

Explanation:

it is false that a filter with verticals slits allows only waves that vibrate from side to side to pass through.

To prevent filter cake from forming on the element surface and to allow desirable solids to pass through, the Rosedale Vibrating Filter employs a closed pressurized system.

A perforated stainless steel basket is lined with either stainless wedge wire or wire cloth in this high-frequency filter.

An electromagnetic wave is a transverse wave in which electric and magnetic energy are transferred.

An electromagnetic wave is made up of vibrating electric and magnetic fields that travel at the speed of light through space or some medium.

Only waves that vibrate from side to side can pass through a filter with "horizontal" slits.

Thus, the given statement is false.

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Answer:

Both are electromagnetic waves

Explanation:

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Answer:

The earth rotates from West to east

Explanation:

The option that correctly compares a pure substance to a mixture is: B. A pure substance can only be separated by chemical means, whereas some mixtures can be separated by physical means.

A pure substance can be defined as a substance that has a definite and constant (fixed) structure and they are typically made up of only a kind of particles. Thus, a pure substance is a chemical substance that has a constant (fixed) chemical composition and properties.

As a result of a pure substance being a chemical substance, it cannot be separated into its constituents by a physical separation technique or method.

Instead, a pure substance being a chemical substance can only be separated by chemical separation technique or method.

In contrast, mixtures can be separated by a physical separation technique or method.

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The closest distance and angle to this question are 1540.35 kilometers and 38.4 ° S. (depending on how you rounded).

There is a common misconception that distance & displacement are simply two different terms for the same thing. But separation separates the concepts of distance and displacement. The total distance covered by an object is always larger than the movement between those two sites, even if it changes direction throughout the course of its voyage.

The smallest (straight line) length between a body's starting position and its final location—represented by an arrow pointing from starting spot to final position—is referred to as a brain's displacement when it moves through one position to another.

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Because of wave refraction, erosion along an irregular coastline is greatest in headlands while deposition is greatest in the  embayment's with the net result being that it straightens out the coastline.

Refraction of waves refers to a shift in the direction of waves as they move from one medium to another. Refraction, or the bending of the wave's path, is accompanied by a change in the wave's speed and wavelength.

Any type of wave can refract. For instance, waves in deep water move more quickly than those in shallow water. A light beam is bent or refracted when it travels through a glass prism.

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90.1 g of ice are still present in the container. Calculating the heat received by the ice to melt and the heat lost by the tea is necessary until it reaches an equilibrium temperature of 33.1 ◦C .

Consider how much energy is required to melt one kilogramme of ice at zero degrees to produce one kilogramme of water at zero degrees. The energy required to melt one kilogramme of ice is determined by Q = mLf = (1.0 kg)(334 kJ/kg) = 334 kJ using the equation for a change in temperature.

In order to calculate how much heat is gained by the ice melting, we must first calculate how much heat is lost by the tea as it cools from 33.1 °C to 0.0 °C.

Tea loses the following amount of heat: q1 = m1CT1 = 0.185 kg) (4186 J/kg C) (33.1 C - 0.0 C) = 26298.93 J.

Heat required for ice to melt is given by the formula: q2 = m2Hf = (0.0903 kg)(333.55 kJ/kg) = 30062.56 J

We may set q1 = q2 to get the mass of ice still present because the system is in thermal equilibrium:

m2 = q2/Hf = 333.55 kJ/kg / 30062.56 J = 0.0901 kg

Finally, we round the mass to two significant digits and convert it to grammes:

m2 = 90.1 g

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Answer:

When the cold weather fills hard surfaces with water, it causes it to freeze and expand, causing cracks in the surface.

Answer:

Which individual or group had perhaps the most profound effect on establishing social work as a specialized practice

Explanation:

The answer is that the time the diver was in the air is 1.13 seconds.

To determine the time the diver was in the air, we can use the kinematic equation:

Δy = viΔt + 1/2at²,

where Δy is the displacement, vi is the initial velocity, a is the acceleration due to gravity (g), and t is the time.The initial velocity, vi, is given as 5.5 m/s, and since the diver jumps upwards, the displacement, Δy, is equal to the height of the board, which is 3.0 m. The acceleration due to gravity, a, is -9.8 m/s² (negative because it acts downwards).Substituting the known values into the equation:3.0

m = (5.5 m/s)t + 1/2(-9.8 m/s²)t²

Simplifying, we get:

4.9t² + 5.5t - 3.0 = 0

We can solve for t using the quadratic formula:

t = (-5.5 ± √(5.5² - 4(4.9)(-3.0))) / (2(4.9))= (-5.5 ± 1.59) / 9.8= -0.47 s or 1.13 s

Since time cannot be negative, the time the diver was in the air is 1.13 seconds.

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The frictional force involved when a penny sinks to the bottom of a wishing well is primarily due to viscous drag or fluid friction. As the penny moves through the water, it experiences resistance from the surrounding fluid. This resistance is caused by the frictional forces between the water molecules and the penny's surface.

Answer:

The kinetic molecular theory of matter asserts that: Matter is made up of particles that are continually moving. All particles contain energy, however the energy fluctuates depending on the temperature the sample of matter is in. This in turn decides whether the material exists in the solid, liquid, or gaseous form.

Explanation:

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Answer:

of the net electric field at point P due to the two charges.

Explanation:

The Big Bang theory is the most widely accepted explanation for the origins of the universe, but it does not necessarily imply that the universe emerged from nothing.

It is possible that new discoveries or insights may shed light on this fundamental question in the future. The universe may have arisen from a pre-existing state or through some other natural process that we do not yet understand.

Instead, the theory describes how the universe underwent a rapid expansion from a very dense and hot state. The conditions and laws of physics that applied during the earliest moments of the universe may not necessarily be the same as those we observe today, and there are many unknowns and uncertainties in our understanding of these early stages.

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Answer:

Is there a picture?

Explanation:

The point through which this ray will pass, after refraction by the lens is point D.

The refraction of light refers to the bending or change in direction that occurs when light passes from one medium to another. It is a phenomenon that happens due to the difference in the speed of light in different substances.

From the ray diagram given, after the light incident from point O, it will pass the converging at point D which is the focal length of the lens after refraction.

Thus, based on the converging lens given in the ray diagram, we can conclude that, the point through which this ray will pass, after refraction by the lens is point D.

So point D is the correct answer.

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A man gains 4,620 joules of potential energy by climbing an 8.4-meter-high wall. He weighs around 56.06 kilograms.

The potential energy is the due to the virtue of the position and the height. The unit for the potential energy is the joule.

The potential energy is found as;

The potential energy is mainly depending upon the height of the object.

potential energy = mgh.

\(\rm 4620=m \times 9.81 x 8.4 \\\\ m = 4620/(9.81 \times 8.4) \\\\ m=\frac{4620}{82.4} \\\\\ m=56.06 kg\)

Hence the value of his mass will be 56.06 kg.

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Answer:

Austrailia

Explanation:

Answer:\(60^{\circ}\)

Explanation:

Given

\(\mid\Vec{A}\mid=1\)

\(\mid\Vec{B}\mid=2\)

And \(A\cdot B=1\)

We know \(\vec{A}\cdot \vec{B}=\mid\Vec{A}\mid\mid\Vec{B}\mid\cos \theta\)

Where \(\theta\) is the angle between them

Substituting the values

\(1=1\times 2\cos \theta\)

\(\cos \theta =\dfrac{1}{2}\)

\(\theta =60^{\circ}\)

Thus the angle between \(A\) and \(B\) is  \(60^{\circ}\)

Answer:

Explanation:

Total mass m = 18 kg .

Spring are parallel to each other so total spring constant

= 4 x 24 = 96 N/cm = 9600 N/m

Time period of vibration

\(T=2\pi\sqrt{\frac{m}{k} }\)

Putting the given  values

\(T=2\pi\sqrt{\frac{18}{9600} }\)

= .27 s .

Answer:

18 kg * m/s

Explanation:

The equation for momentum is:

momentum = mass * velocity

And although the problem already gave velocity, you must calculate the mass from the graviational force.

Fg = 3.4N = mg = 9.8m

mass = 3.4 N / 9.8 m/s^2 = 0.3469 kg

Momentum = 52m/s * 0.3469 kg - 18.041 kg * m/s = 18

In order to produce the C5 note, the length of the one-inch PVC pipe should be cut to approximately 12.91 inches.

The formula to calculate the length of a pipe to produce a desired frequency is:

L = (v/2f) * n

Where:

To find the length of the pipe needed to produce the C5 note with a frequency of 523.25 Hz, we can use the formula above and assume the fundamental frequency (n = 1):

L = (v/2f) * n = (343 m/s / 2 * 523.25 Hz) * 1

L = 0.3279 meters or 12.91 inches

Therefore, the length of the one-inch PVC pipe should be cut to approximately 12.91 inches to produce the C5 note.

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Answer:

Explanation:

What is the question?

Grace Scholars Program is a scholarship program that selects the best and brightest students for the program.

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If the dog walked at a constant speed the whole way, the graph of the dog's position versus time would be a straight line. This is because the dog's velocity (which is the derivative of position with respect to time) would be constant, and the acceleration (which is the derivative of velocity with respect to time) would be zero.

A straight line on a position-time graph indicates that the object is moving at a constant velocity. The slope of the line would be equal to the velocity of the dog.

If the graph is a horizontal line, it would indicate that the dog is at rest. If the line slopes upward, the dog is moving in the positive direction (for example, to the right in a position-time graph), and if the line slopes downward, the dog is moving in the negative direction.

In all, A constant speed means a constant velocity and the line is a straight line with a particular slope.

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Answer:

In per second 186000

Explanation:

hope it will be right if not then your loss say nothing to me

Answer:

20 kg

Explanation:

The kinetic energy (KE) of an object is given by:

KE = (1/2) * m * v^2

Where m is the mass of the object, and v is its velocity.

We can rearrange this formula to solve for the mass:

m = 2 * KE / v^2

Plugging in the values given:

m = 2 * 1000 J / (10 m/s)^2

m = 20 kg

Therefore, the mass of the Puffin flying at 10 m/s with 1000 J of KE is 20 kg.