What is the difference between memos and emails?
O a. Memos are usually sent online and emails are usually sent on hard copy to inform an action
b. Memos are used for internal messages and emails can be used for external communication
O c. Emails are used for longer reports and memos are used for short reminders and replies
O d. Emails are used for formal reports and proposals and memos are for informal ideas

The amount of work done on the toboggan by the tension force of 105 N with a rope directed 32° above the snow is 3.12 KJ

W = F d cos θ

W = Work done

F = Force

d = Distance

θ = Angle between force and displacement vector

d = 35 m

F = 105 N

θ = 32°

W = 105 * 35 * cos 35°

W = 105 * 35 * 0.85

W = 3123.75 N m

W = 3.12 KJ

Work done is energy transferred to make an object move to a distance. Its unit is Joules which is denoted as J. It is the amount of work done by a force of 1 Newton to move a distance of 1 meter.

Therefore, the amount of work done on the toboggan by the tension force is 3.12 KJ

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Answer:

The required ratio is 1.99.

Explanation:

We need to find the atio of speeds of a proton and an alpha particle accelerated through the same voltage.

We know that,

\(eV=\dfrac{1}{2}mv^2\)

The LHS for both proton and an alpha particle is the same.

So,

\(\dfrac{v_p}{v_a}=\sqrt{\dfrac{m_a}{m_p}} \\\\\dfrac{v_p}{v_a}=\sqrt{\dfrac{6.64\times 10^{-27}}{1.67\times 10^{-27}}} \\\\=1.99\)

So, the ratio of the speeds of a proton and an alpha particle is equal to 1.99.

Answer: kooi kooi

how r u and thanks for the free points :)

If a wave has an amplitude of 0.0800 m and is moving 7.33 m/s. The

wavelength of the wave is 1.69m.

The wavelength of a wave can be determined using the equation:

Wavelength = velocity / frequency

To determine the frequency we need to calculate the reciprocal of the time it takes for one complete oscillation.

frequency = 1 / time

frequency = 1 / 0.230

frequency ≈ 4.35 Hz

Substitute the values into the wavelength equation:

wavelength = velocity / frequency

wavelength = 7.33 / 4.35

wavelength ≈ 1.69m

Therefore the wavelength of the wave is approximately 1.69 meters.

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Answer:

Energy Flows Quick check answers:

1. Ffd.

2. The kinetic energy decreases, and gravitational potential energy increases.

3. The internal energy of the system increases.

4. KEbox= Etotal-mgh

5. Etotal = 1/2m1(v1)^2+1/2m^2(v2)^2+U

The part of the equation that represents the amount of energy converted to thermal energy is \(F_f d\).

The given equation for the total energy of a system;

\(E_{total} = \frac{1}{2} mv^2 \ +\ mgh\ + \ \ F_fd\)

The definition of the various terms in the energy equation is given as;

The energy lost due to friction is equal to the energy converted to thermal energy.

Thus, the part of the equation that represents the amount of energy converted to thermal energy is \(F_f d\).

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Answer:

a heavy person standing on a bed

Explanation:

The heavy person will have more mass than the lighter person, so they will create greater pressure.

The statement that describes the transformation of the graph of function f onto the graph of function g is: The graph shifts 2 units right and 7 units down.

To determine the transformation of the graph of function f onto the graph of function g, we compare the two functions f(x) and g(x) and observe the changes in the equations.

The function f(x) = (1/x - 3) + 1 represents a reciprocal function that is shifted vertically 1 unit up and horizontally 3 units to the right. The reciprocal function is reflected about the line y = x.

The function g(x) = (1/(1 + 4)) + 3 simplifies to g(x) = 4 + 3 = 7, which is a constant function representing a horizontal line at y = 7.

By comparing the equations, we can see that the transformation from f(x) to g(x) involves the following changes:

The term 1/x in f(x) is replaced by the constant 1/(1 + 4) in g(x), resulting in a vertical shift of 7 units up.

The term -3 in f(x) is replaced by 3 in g(x), resulting in a vertical shift of 3 units up.

The +1 in f(x) is replaced by +3 in g(x), resulting in an additional vertical shift of 2 units up.

Therefore, the overall transformation is a shift of 2 units to the right and 7 units down.

Hence, the correct statement is: The graph shifts 2 units right and 7 units down.

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Answer:

Yes, light can bend around corners.

Explanation: In fact, light always bends around corners to some extent. This is a basic property of light and all other waves. The amount of light that bends around a corner depends on the exact situation.

Thanks for asking the question!!

Answer:

144 meters

Explanation:

it takes 6 seconds to hit the ground right and the ball lays off 24 m per second .

so by the time the ball hits the ground 6 seconds passed. so that means the cliff is 6.0×24=144

If the coefficient of kinetic friction between Josh's sled and the snow is 0.08, he slides 6.97 meter from the base of the hill.

To find how far from the base of the hill Josh's sled ends up, we need to first find the speed of the sled at the bottom of the hill using the conservation of energy principle,

mgh = (1/2)mv², plugging in the values given in the problem, we get,

m(9.81 m/s²)(3.5 m) = (1/2)mv²

Simplifying and solving for v, we get,

v = √(2gh)

v = √(2(9.81 m/s²)(3.5 m))

v = 8.29 m/s

Now we can use the kinematic equation,

d = vt - (1/2)at, to find how far the sled slides on the horizontal patch of snow before coming to a stop, where d is the distance traveled, v is the initial velocity (8.29 m/s), a is the acceleration due to friction (-μg), and t is the time it takes to come to a stop (which we can find by setting v = 0 and solving for t),

0 = 8.29 m/s - μg*t

t = 8.29 m/s / μg

Substituting this value of t back into the kinematic equation, we get,

d = (8.29)(8.29/μg) - (1/2)μg(8.29/μg)²

d = 6.97 m

Therefore, Josh's sled ends up 6.97 meters from the base of the hill.

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Answer:

57.0 m

Explanation:

Assume the time it takes for the sound to reach the top of the well is negligible.

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 3.41 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (3.41 s) + ½ (9.8 m/s²) (3.41 s)²

Δy = 57.0 m

Answer:

57 m

Explanation:

Answer:

thermal

Explanation:

sorry if you get it wrong

Answer:

Speed = 575 m/s

Mechanical energy is conserved in electrostatic, magnetic and gravitational forces.

Explanation:

Given :

Potential difference, U = \($-3.45 \times 10^{-3} \ V$\)

Mass of the alpha particle, \($m_{\alpha} = 6.68 \times 10^{-27} \ kg$\)

Charge of the alpha particle is, \($q_{\alpha} = 3.20 \times 10^{-19} \ C$\)

So the potential difference for the alpha particle when it is accelerated through the potential difference is

\($U=\Delta Vq_{\alpha}$\)

And the kinetic energy gained by the alpha particle is

\($K.E. =\frac{1}{2}m_{\alpha}v_{\alpha}^2 $\)

From the law of conservation of energy, we get

\($K.E. = U$\)

\($\frac{1}{2}m_{\alpha}v_{\alpha}^2 = \Delta V q_{\alpha}$\)

\($v_{\alpha} = \sqrt{\frac{2 \Delta V q_{\alpha}}{m_{\alpha}}}$\)

\($v_{\alpha} = \sqrt{\frac{2(3.45 \times 10^{-3 })(3.2 \times 10^{-19})}{6.68 \times 10^{-27}}}$\)

\($v_{\alpha} \approx 575 \ m/s$\)

The mechanical energy is conserved in the presence of the following conservative forces :

-- electrostatic forces

-- magnetic forces

-- gravitational forces

The most significant change in the comet's energy as it moves from point D to point A KE increases, GPE decreases.Option C is correct.

Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ice.

They range from a few miles to tens of miles wide, but as they orbit closer to the Sun, they heat up and spew gases and dust into a glowing head that can be larger than a plane.

As the comet transitions from point D to point A, the biggest energy shift is seen. GPE declines as KE rises. The right answer is C.

Hence option C is correct.

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Answer:

The SI unit for intensity is watts per square meter (W/m2)

In the study of personality, the Five-factor model includes different traits that underlie one’s basic tendencies.

The Five-factor model is a scientific theory that states traits of the personality of an individual are due to its biology and therefore they respond to adaptations, which are central in the biology field.

In conclusion, in the study of personality, the Five-factor model includes different traits that underlie one’s basic tendencies.

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For any human characteristic, both nature (heredity) and nurture (environment) are crucial.

Intellectual capacity, personality, and susceptibility for mental disease are just a few of the behavioural and psychological traits that each person's genes can affect. These traits can affect both parents and children within a family.

Because the main building blocks of personality, such as physicality, intelligence, and temperament are heavily reliant on a person's genetic endowment, heredity of the genetic base is a very essential factor in determining personality. The development of a person's personality is greatly influenced by their environment.

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Answer:

3.77x10^-5T

Explanation:

Magnetic field at center of the loop is given as

B=uo*I/2r =(4pi*10-7)*6/2*0.1

B=3.77*10-5Tor 37.7 uTi

The energies that the ball possess when it is in rest at the top of the hill is electrostatic  potential energy. When the ball at the level ground, it has gravitational potential energy and when it at the half way down hill , it possess rotational kinetic energy.

Potential energy of a body is generated by virtue of its position. When the object is placed at rest on the surface the gravitational field, the stored energy is called gravitational potential energy.

When the object starts to move it gains kinetic energy.  When the ball is at rest on the top of the hill it has the electrostatic potential energy. When starts to roll to the ground , then its potential energy converts to rotational kinetic energy.

When, the ball reaches the ground its kinetic energy again transforms to potential energy where the ball is falling down to the gravitational field and thus it possess gravitational potential energy.

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Answer:

Explanation:

Initial velocity in y direction Vy = 22.3 m /s

initial acceleration in x direction ax = .203 m /s ²

time of acceleration t = 56.7 s

final velocity in x direction

v  = u + a t

Vx = 0 + .203 x 56.7 = 11.51 m /s

Final velocity in y direction will remain same as initial velocity in y direction = 22.3 m /s because there is no acceleration in y direction .

Magnitude of final velocity

= √ ( Vx² + Vy²)

= √ (22.3² + 11.51² )

= √ ( 497.29 + 132.48)

= 25.1 m /s

Direction of final velocity  from y direction be Ф

TanФ = Vx / Vy = 11.51 / 22.3 = .516

Ф = 27.3° .

Answer:

1.74 x 10^6

Explanation:

Brainliest :)

The approximate radius of the Moon is \(1.736 * 10^7\) meters, or 17,360 kilometers.

To find the radius of the Moon, we can use Newton's law of universal gravitation, which relates the acceleration due to gravity (g) to the mass of the celestial body (M) and the distance (radius, r) between the center of the body and the object experiencing the gravitational force.

The formula for the acceleration due to gravity on the surface of a celestial body is:

\(g = G * (M / r^2),\)

where:

g = acceleration due to gravity on the Moon's surface (\(1.62 m/s^2\)),

G = universal gravitational constant (approximately\(6.67430 * 10^{-11\) m^3/kg/s^2),

M = mass of the Moon (\(7.35 * 10^{22\) kg), and

r = radius of the Moon (what we want to find).

Let's rearrange the formula to solve for the radius (r):

\(r^2\) = G * (M / g).

Now, we can plug in the known values:

\(r^2 = (6.67430 * 10^{-11} m^3/kg/s^2) * (7.35 * 10^{22} kg / 1.62 m/s^2)\).

Calculate the value of \(r^2\):

\(r^2\) ≈ \(3.018 * 10^{14} m^2.\)

Finally, take the square root of both sides to find the radius (r):

r ≈ \(\sqrt{(3.018 * 10^{14} m^2)\)≈ \(1.736 * 10^7\) meters.

So, the approximate radius of the Moon is\(1.736 * 10^7\) meters, or 17,360 kilometers.

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Answer:

400J/kg°C

Explanation:

The specific heat capacity will be 400 J/kg °C. Specific heat capacity is the relationship between the amount of energy delivered to a substance and the increase in temperature that results.

The amount of heat required to increase a substance's temperature by one degree Celsius is known as specific heat capacity.

Similarly

Mathematically, specific heat capacity is given by;

\(\rm C = \frac{E}{m \times \theta }\)

The given data in the problem is;

The specific heat of the substance is,C in J/kg °C.

The energy is,E =1000 JIs

The mass is,m= 25 g

\(\rm \theta\) Is the temperature difference =  100 °C.

On substituting the given data;

\(\rm C = \frac{E }{m \times \theta } \\\\ C = \frac{1000}{25\times 10^{-3} \times 100 } \\\\ C = 400 \ J/kg^0C.\)

Hence, the specific heat capacity will be 400 J/kg °C.

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Answer:

the first one

Explanation:

If g= 10m/s²

Then 75kg=75×10=750N

Since Work =Force ×Distance

Work=750×30

=22500J

And Power°=Work÷time

=22500÷120

=187.5W

The man exert "187.5 W".

The amount of energy transferred whenever an item has been transported across a distance by someone with an externally applied, minimum at a portion of which would be applied throughout the directions of either the displacement.

According to the question,

Mass, m = 75 kg, or

Force, F = 75 × 10

              = 750 N

Distance, d = 30 m

Time, t = 120 s

As we know the formula,

→ Work = Force × Distance

By substituting the values,

            = 750 × 30

            = 22500 J

hence,

The Power will be:

= \(\frac{Work}{Time}\)

By substituting the values,

= \(\frac{22500}{120}\)

= 187.5 W

Thus the above response is correct.  

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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.

The frequency of the sixth overtone would be 576 Hz.

To determine the length of a tube closed at one end, we can use the formula:

L = (v/4f) * (2n - 1)

where L is the length of the tube, v is the speed of sound in air, f is the fundamental frequency, and n is the harmonic number.

Given that the fundamental frequency is 96 Hz, we can substitute the values into the formula:

L = (v/4f) * (2n - 1)

L = (v/4*96) * (2*1 - 1)

L = v/384

To find the length at 0ºC, we need to know the speed of sound at that temperature. The speed of sound in air depends on temperature and other factors. At 0ºC, the speed of sound in dry air is approximately 331.4 m/s.

L = 331.4/384

L ≈ 0.862 m

Therefore, the tube closed at one end should have a length of approximately 0.862 meters when the air temperature is 0ºC.

To find the frequency of the sixth overtone, we multiply the fundamental frequency by six: Frequency of sixth overtone = 96 Hz * 6 = 576 Hz.

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Sound waves are a type of mechanical wave that propagate through a medium, typically air but also other materials such as water or solids.

Frequency: the frequency of a sound wave refers to the number of cycles or vibrations it completes per second and is measured in Hertz (Hz).

Amplitude: the amplitude of a sound wave refers to the maximum displacement or intensity of the wave from its equilibrium position. It represents the loudness or volume of the sound, with larger amplitudes corresponding to louder sounds and smaller amplitudes corresponding to softer sounds.

Wavelength: the wavelength of a sound wave is the distance between two consecutive points in the wave that are in phase, such as from one peak to the next or one trough to the next. It is inversely related to the frequency of the wave.

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Answer:

mas lalo kang tinatamaran magaral

The crane is under 5120 N of force. The crane touches the rock boulder and uses mechanical force to lift it.

Force is a physical phenomenon that can change an object's shape as well as its state of motion or rest. The SI unit of force is the Newton.

Jib, gantry, and overhead cranes are the three pieces of machinery used most frequently in the industry. Depending on the type of item to be moved, either a chain or wire rope hoist will be used. In the shipbuilding sector, material handling is the main use of overhead cranes during the assembly process.

Briefing:

Mass (m) = 400kg

Acceleration (a) = 3.00 m/s^2

Gravitational acceleration (g) = 9.81 m/s^2

Force (F) = mg + ma

Force (F) = m (g + a)

Force (F) = 400 (9.81+3)

Force (F) = 5120 N

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