A sloth weighing 7.52 kg hangs on a tree branch and has PE = 346 J. At what height (m) is the sloth above the ground

Answer:

The coefficient of kinetic friction between the crate and the floor can be calculated using the formula μ = Ff / N, where Ff is the frictional force, N is the normal force, and μ is the coefficient of kinetic friction.

In this case, the normal force is equal to the weight of the crate, which is 24 kg * 9.8 m/s2 = 235.2 N. The frictional force can be calculated using the formula Ff = μ * N, where μ is the coefficient of kinetic friction and N is the normal force.

If we substitute the values for N and Ff into the formula for the coefficient of kinetic friction, we get:μ = 53 N / 235.2 N = 0.225

Therefore, the coefficient of kinetic friction between the crate and the floor is 0.225.

Answer:

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them

Answer:

Explanation:

The acceleration of an object given it's velocity and time taken can be found by using the formula

\(a = \frac{v}{t} \\ \)

where

v is the velocity

t is the time

From the question

v = 450 m/s

t = 15 s

We have

\(a = \frac{450}{15} \\ \)

We have the final answer as

Hope this helps you

Answer:

True

Explanation:

mass, length, time, electric current, temperature, luminous intensity and amount of substance

The answer is above but I don't know if it's correct.

Answer:

Explanation:

he force will depend on the masses of the rocks.

The formula you weren’t paying attention to in your Physics lesson was one of the more basic ones:

F = ma

F is the force. m is the mass of the object, and a is the acceleration. That’s all you should need.

Unfortunately, your question gave the weight of the rocks, not their masses. So, it can’t be answered without more information - eg is the rock on Earth, or on the moon, Mars or a planet orbiting Alpha Centauri?

If the rock is located on Earth, then you can use the same formula as above, because we know that a = g = 9.8m/s/s. and F is the weight. So, we know F, a and can work out m using a bit of basic algebra.

The other problem is that we don’t know the mass of the second piece of rock, because we haven’t been told either the weight or mass of that piece of rock.

If your homework question didn’t specify that, you can either refuse to answer it saying that not enough information was given, or STATE in your answer that you are assuming that the second piece of rock is the same mass as the first one.

If you decide to do that, then a minute’s work should give you the answer you’re looking for.

Doppler's effect:

The Doppler effect states that the frequency of sound increases as it source approaches you and it decreases as the source turns away from you.

When the ambulance drives past you, the pitch of the siren is lower. This is due to the fact that the frequency of the wavelength decreases.

A higher pitch means frequency increases and a lower pitch means frequency decreases.

Therefore, the correct answer is option B. decreases

The net force is the vector

∑ F = (450 N) (cos(42°) i + sin(42°) j)

and two of the forces provided by the girls are

F₁ = (310 N) (cos(115°) i + sin(115°) j)

F₂ = (250 N) (cos(285°) i + sin(285°) j)

Then the force provided by the third girl is the vector

F₃ = ∑ F - F₁ - F₂

F₃ = ((450 N) cos(42°) - (310 N) cos(115°) - (250 N) cos(285°)) i

… … … + ((450 N) sin(42°) - (310 N) sin(115°) - (250 N) sin(285°)) j

F₃ ≈ (400.722 N) i + (261.635 N) j

So, the third girl provided a force of magnitude

||F₃|| = √((400.722 N)² + (261.635 N)²) ≈ 478.572 N ≈ 480 N

pointing in a direction

arctan((261.635 N)/(400.722 N)) ≈ 33.1409° ≈ 33°

relative to East which refers to 0°; that is, 33° N of E or E33°N. Since the other forces are given relative to North or South, we can write this direction as N57°E.

So, the third girl pushed with force 480 N [N57°E].

Answer:

Joule

Explanation:

energy, work, quantity of heat

m2·kg·s-2

Answer:

Explanation:

We build graphs of speed and acceleration.

Acceleration is positive in the interval  (0 - 8) s.

Acceleration is negative in the interval (8-10) s.

At the end of the year, the total stockholders' equity for Gucci Brothers Inc. is $1,392,000.

To calculate the total stockholders' equity at the end of the year for Gucci Brothers Inc., we need to consider the beginning balances of Retained Earnings and Common Stock, the net income, dividend paid, and the additional common stock issued.

1. Starting Retained Earnings: $693,000

2. Starting Common Stock: $594,000

3. Net Income: $96,000

4. Dividend Paid: $14,500

5. Additional Common Stock Issued: $23,500

First, calculate the updated Retained Earnings:

$693,000 (starting) + $96,000 (net income) - $14,500 (dividend) = $774,500

Next, calculate the updated Common Stock:

$594,000 (starting) + $23,500 (additional) = $617,500

Finally, calculate the total stockholders' equity:

$774,500 (Retained Earnings) + $617,500 (Common Stock) = $1,392,000

The total stockholders' equity at the end of the year is $1,392,000.

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Answer:

the reflected angle must be 20º

Explanation:

The surface on which the ray of light falls is a mirror, therefore the law of reflection must be fulfilled, which establishes that the incident angle is equal to the reflected angle.

Therefore, if the incident angle is 20º, the reflected angle must be 20º receiving the normal.

The customer's maximum gain potential is $7,300.

A put option is a contract that gives the owner the right, but not the obligation, to sell a specified amount of an underlying asset, at a specified price within a specified time frame.

Here, the customer is long 1 October 75 put at 2.

In this case, the maximum gain potential is calculated using the following formula;

Max gain potential = Strike price – Premium paid

Max gain potential = $75 - $2

Max gain potential = $73

Therefore, the customer's maximum gain potential is $7,300.

Option B) $7,300

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(A) The pressure transients at the mid-point of the pipeline are approximately 1,208,277 Pa.
(B) Friction in the pipeline affects the calculated pressure transients by increasing the overall resistance to flow

(a) The pressure transients at the mid-point of the pipeline can be calculated using the water hammer equation. Water hammer refers to the sudden changes in pressure and flow rate that occur when there are rapid variations in fluid flow. The equation is given by:

ΔP = (ρ × ΔV × c) / A

Where:

ΔP = Pressure change

ρ = Density of water

ΔV = Change in velocity

c = Wave speed

A = Cross-sectional area of the pipe

First, let's calculate the change in velocity:

ΔV = Q / A

Q = Flow rate = 0.12 m/s

A = π × ((d/2)^2 - ((d-2t)/2)^2)

d = Internal diameter of the pipe = 300 mm = 0.3 m

t = Pipe wall thickness = 5 mm = 0.005 m

Substituting the values:

A = π × ((0.3/2)^2 - ((0.3-2(0.005))/2)^2

A = π × (0.15^2 - 0.1495^2) = 0.0707 m^2

ΔV = 0.12 / 0.0707 = 1.696 m/s

Next, let's calculate the wave speed:

c = √(E / ρ)

E = Young's modulus of steel = 210x10^9 Pa

ρ = Density of water = 1000 kg/m^3

c = √(210x10^9 / 1000) = 4585.9 m/s

Finally, substituting the values into the water hammer equation:

ΔP = (1000 × 1.696 × 4585.9) / 0.0707 = 1,208,277 Pa

Therefore, the pressure transients at the mid-point of the pipeline are approximately 1,208,277 Pa.

(b) Friction in the pipeline affects the calculated pressure transients by increasing the overall resistance to flow. As water moves through the pipe, it encounters frictional forces between the water and the pipe wall. This friction causes a pressure drop along the length of the pipeline.

The presence of friction results in a higher effective wave speed, which affects the calculation of pressure transients. The actual wave speed in the presence of friction can be higher than the wave speed calculated using the Young's modulus of steel alone. This higher effective wave speed leads to a reduced pressure rise during the transient event.

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An atom with great electronegativity is able to attract electrons towards itself in a chemical bond. This means that it is able to form strong covalent bonds with other atoms, and can also participate in ionic bonding by attracting electrons away from other atoms.

Additionally, an atom with high electronegativity is able to exert a greater degree of control over the distribution of charge within a molecule, making it an important factor in determining the overall reactivity and behavior of the molecule.

Electronegativity is a measure of an atom's ability to attract electrons towards itself when it is part of a chemical bond. In other words, it is a measure of an atom's ability to pull electrons away from other atoms in a molecule. Electronegativity is an important concept in chemistry, as it helps predict how atoms will behave in chemical reactions.

Electronegativity is typically measured on a scale called the Pauling scale, named after the American chemist Linus Pauling. The scale ranges from 0.7 (for the least electronegative element, francium) to 4.0 (for the most electronegative element, fluorine). Elements towards the right side of the periodic table, such as the halogens and oxygen, are generally more electronegative than elements towards the left side, such as the alkali metals.

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When a light spring is attached to a heavier spring at one end. a pulse traveling along the light spring is incident on the boundary with the heavier spring. at this boundary, the pulse will be partially reflected and partially transmitted into the heavier spring.The correct answer is option A.

When a pulse traveling along the light spring reaches the boundary with the heavier spring, its behavior can be determined by considering the principles of wave transmission and reflection at an interface.

The key factor in wave behavior at an interface is the difference in impedance between the two media. Impedance is a property that describes how much a medium resists the transmission of waves.

In this case, the impedance of the light spring will be different from that of the heavier spring due to their differing properties, such as mass and stiffness.

Based on this, the correct answer is (a) partially reflected and partially transmitted into the heavier spring. Some of the pulse's energy will be reflected back into the light spring, while the remaining energy will be transmitted into the heavier spring.

The extent of reflection and transmission will depend on the mismatch of the impedances of the two springs.

It is important to note that total absorption (b) or total reflection (c) are unlikely scenarios because some energy will be transferred from the light spring to the heavier spring due to the wave's incident motion. Total transmission (d) is also improbable as the impedance mismatch will cause some reflection at the interface.

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Answer:

free free free free free free free free free free free free free free free free free points

To find the spherical convex mirror radius, learn the focal length and magnitude.

What is focal length?

The focal length of a thin lens in air is measured from the lens's center to its primary foci, also known as focal points. The focal length of a converging lens, such as a convex lens, is positive and determines how far a collimated light beam must travel to focus on a single point.

What is magnitude?

Magnitude typically refers to size or distance. By comparing the size and motion speed of the object, we can relate magnitude to movement. The object's or quantity's size determines its magnitude.

R=0.123m

Focal length E= R/2

E= - 0.0615m.

Therefore, the focal length is 0.0615m.

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To steadily increase the velocity of something, it requires c. constant net force.

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, this is represented as F = ma, where F is the net force, m is the mass, and a is the acceleration.  When a constant net force acts on an object, it causes the object to accelerate at a constant rate. This acceleration leads to a steady increase in the object's velocity.

It is important to note that a steadily increasing force would result in an object experiencing an increasing acceleration, which would cause the velocity to increase at an increasing rate rather than steadily. On the other hand, a decreasing force would result in a decreasing acceleration, causing the velocity to increase at a slower rate or even decrease. In conclusion, to steadily increase the velocity of an object, a constant net force must be applied to it. This constant force leads to a constant acceleration, which in turn results in a steady increase in the object's velocity.

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The magnitude of the rod's angular momentum is 619.91 Kgm²/sec.

Angular momentum is really significant in physics because it is a conserved quantity, the total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.

Given the following;

r is the radius of the rod=3.15 m

l is the length of rod=3.15 m

ω is the angular velocity=4.25 rad/s

m is the mass=14.7 kg

The angular momentum, L is given by;

L=m*r^2*ω

L=14.7*(3.15)^2*4.25

L=145.8608*4.25

L=619.91 Kgm²/sec

Hence the magnitude of the rod's angular momentum is 619.91 Kgm²/sec.

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The Poynting vector for the given electric and magnetic fields is S = 33.12^i - 57.84^j + 2.56^k (units: W/m²).To determine the Poynting vector, we can use the formula:

S = E x B

where S is the Poynting vector, E is the electric field vector, and B is the magnetic field vector.

Given:

E→ = (80.0^i + 32.0^j - 64.0^k) N/C

B→ = (0.200^i + 0.0800^j + 0.290^k) µT

Let's convert the magnetic field from µT to T by multiplying it by 10^-6.

B→ = (0.200^i + 0.0800^j + 0.290^k) T

Now we can calculate the cross product of E→ and B→ to find the Poynting vector:

S = E x B

Expanding the cross product, we get:

S = (E_y * B_z - E_z * B_y) i + (E_z * B_x - E_x * B_z) j + (E_x * B_y - E_y * B_x) k

Plugging in the given values, we have:

S = (32.0 * 0.290 - (-64.0) * 0.0800) i + ((-64.0) * 0.200 - 80.0 * 0.290) j + (80.0 * 0.0800 - 32.0 * 0.200) k

Simplifying the calculations, we find:

S = 33.12 i + (-57.84) j + 2.56 k

Therefore, the Poynting vector for the given electric and magnetic fields is S = 33.12^i - 57.84^j + 2.56^k (units: W/m²).

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A 710 kg k g car drives at a constant speed of 23 m/s and is subject to a drag force of 500 N. The required power to drive the car on the ground is 11.5 kW

Power is defined as the amount of work done per unit time.

P = W/Δt

Where:

W = work done

Δt = time period

Since W = F . s  

Hence,

P = F . s/Δt = F . v

Where:

F = force acted on the object

s = distance

v = velocity

Parameters given in the problem:

F = 500 N

v = 23 m/s

Hence, the required power is:

P = (500) (23 ) = 11,500 Watt = 11.5 kW

Your question is incomplete, but most probably your question was:

A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car on level ground?

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Answer:

5.1 meters

Explanation:

Terra tosses a 0.20kg volleyball up at at a speed of 10 m/s

The height can be calculated as follows

= v^2/2g

= 10^2/2×9.8

= 100/19.6

= 5.1 meters

Hence the height is 5.1 meters

Answer:

water at high temperature

Explanation:

When heated, molecules move faster which results in the sound waves being transmitted faster.

Answer:

Seafloor spreading occurs because earthquakes break apart the ocean floor.

Seafloor spreading is a geologic process where there is a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while moving the older rocks away from the mid-oceanic ridge. The mid-ocean ridge is where the seafloor spreading occurs, in which tectonic plates—large slabs of Earth’s Lithosphere—split apart from each other.

Seafloor spreading was proposed by an American geophysicist, Harry H. Hess in 1960. By the use of the sonar, Hess was able to map the ocean floor and discovered the mid-Atlantic ridge (mid-ocean ridge). He also found out that the temperature near to the mid-Atlantic ridge was warmer than the surface away from it. He believed that the high temperature was due to the magma that leaked out from the ridge. The Continental Drift Theory of Alfred Wegener in 1912 is supported by this hypothesis on the shift position of the earth’s surface.

The mid-ocean ridge is the region where new oceanic crust is created. The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed. The formation of the new crust is due to the rising of the molten material (magma) from the mantle by convection current. When the molten magma reaches the oceanic crust, it cools and pushes away the existing rocks from the ridge equally in both directions.

A younger oceanic crust is then formed, causing the spread of the ocean floor. The new rock is dense but not as dense as the old rock that moves away from the ridge. As the rock moves, further, it becomes colder and denser until it reaches an ocean trench or continues spreading.

It is believed that the successive movement of the rocks from the ridge progressively increases the ocean depth and have greater depths in the ocean trenches. Seafloor spreading leads to the renewal of the ocean floor in every 200 million years, a period of time for building a mid-ocean ridge, moving away across the ocean and subduction into a trench.

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The force between wires can be either attractive or repulsive depending on the circumstances. It is determined by the direction of the currents flowing in the wires.

When the currents in the wires flow in the same direction, the magnetic fields produced by the currents will interact and create an attractive force between the wires. This is known as the "parallel" or "like current" configuration.

On the other hand, when the currents in the wires flow in opposite directions, the magnetic fields produced by the currents will interact in a way that creates a repulsive force between the wires. This is known as the "antiparallel" or "opposite current" configuration.

So, the force between wires can be attractive or repulsive depending on whether the currents are flowing in the same direction or opposite directions.

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Answer:

Oh, I didn't know if u meant decigram or decagram! So for decagram there would be 10 grams and deci gram is 0.1 grams.  Hope this helps!!

Explanation:

Answer:

Hey there!

There are 10 grams in one decagram.

Let me know if this helps :)

Answer: 29.72

Explanation:

you multiply the number by 5 then divide by 18=

107x5= 535

535/18= 29.72

The system of forces that would make the object not to move is shown in  option A.

We know that a force is a vector. A vector is a quantity that does have both magnitude and direction. This implies that we would know the direction in which the vector would move by looking at the direction that is indicated.

A force could have direction because force is a vector quantity. We know that an object is going to remain at rest if the object is acted upon by balanced forces. According to the Newton's first law, the only time that an object would move is if the object has been acted upon by external forces.

We now have to look at the horizontal forces that act on the object. The image that shows horizontal forces of the same magnitude in both directions would not make the object to move.

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