How does the force of friction for a sliding object vary with the area of contact?

Answer: λ (wavelength) = 3.3 m →  ΔS = 3.3 m

v (speed) = 5.6 m/s → ΔV = 5.6 m/s

T (period) → ΔT = ?

f (frequency) = ?

If:

Now: (if, ΔT = T), Using the formula of the period of a wave, find the frequency:

Explanation: Your Welcome u.u

The frequency of this wave is approximately 1.697 Hz.

To find the frequency of a wave, we can use the formula:

frequency (f) = speed (v) / wavelength (λ)

Given:

Wavelength (λ) = 3.3 m

Speed (v) = 5.6 m/s

Substituting these values into the formula, we can calculate the frequency:

f = v / λ

f = 5.6 m/s / 3.3 m

f ≈ 1.697 Hz

Therefore, the frequency of this wave is approximately 1.697 Hz.

To know more about frequency here

https://brainly.com/question/29739263

#SPJ2

The bus with 12 passengers will have less kinetic energy.

option B.

The kinetic energy of an object is the energy possessed by an object due to its motion.

Mathematically, the formula for kinetic energy is given as;

K.E = ¹/₂mv²

where;

The bus with greater number of passengers will have more kinetic energy and vice versa.

Thus, the bus with 12 passengers will have less kinetic energy and the bus with 30 passengers will have more kinetic energy.

Learn more about kinetic energy here: https://brainly.com/question/25959744

#SPJ1

Answer:

so how much heat is there at 0 C? That's zero. But for every degree above that you have 4.184 J. You take it from there. Remember q = mc*delta T.

Answer: 30 cm.

The situation described is that of two sources of sound waves that are separated by some distance. The two waves interfere with each other constructively at some points and destructively at others. When they interfere constructively, the amplitude (and intensity) of the sound wave is greater than when they interfere destructively.

When the speakers are 40 cm apart, the waves that they produce are in phase at some points on the axis, leading to constructive interference and a maximum in the intensity of the sound. As the distance between the speakers is increased beyond 40 cm, the points of constructive interference move farther apart, and the intensity of the sound decreases. When the speakers are 50 cm apart, the waves that they produce are exactly out of phase at some points on the axis, leading to complete destructive interference and a minimum in the intensity of the sound.

If the separation between the speakers continues to increase, the points of constructive interference will move closer together again, and the intensity of the sound will increase. The separation between the speakers at which the intensity of the sound will again be a maximum can be found using the following equation:

d = λ/2 + nλ

where d is the separation between the speakers, λ is the wavelength of the sound wave, and n is an integer that represents the number of half-wavelengths between the speakers.

At the maximum, the separation is an even multiple of half the wavelength, so we can use the formula above with n = 1. The wavelength can be found from the distance between the speakers at the minimum, which is 50 cm, and the distance at the maximum, which is 40 cm:

λ = 2(d_max - d_min) = 20 cm

Substituting λ and n into the formula gives:

d = λ/2 + nλ = 10 cm + 20 cm = 30 cm

Therefore, the sound intensity will be a maximum again when the separation between the speakers is 30 cm.

The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

To learn more about acceleration

https://brainly.com/question/2303856

#SPJ8

Answer:

The magnitude of each force is 66.67 N

Explanation:

Given that the magnitude of the tension forces are equal. Let the magnitude of the tension forces be represented by x, such that;

|OA| = |OB| = |OC| = x

Since their summation = 200 N, then;

|OA| + |OB| + |OC| = 200

This implies that;

x + x + x = 200

3x = 200

x = \(\frac{200}{3}\)

    = 66.6667

x = 66.67 N

Therefore, the magnitude of each tension force is approximately 66.67 N

Answer:

For a thermodynamic system to be in equilibrium, all intensive (temperature, pressure) and extensive thermodynamic properties (U, G, A, H, S, etc) must be constants. Hence, the total change in any of those properties (dℑ ) must be zero at equilibrium.

Explanation:

hope it helps :)

Answer: For a thermodynamic system to be in equilibrium, all intensive (temperature, pressure) and extensive thermodynamic properties (U, G, A, H, S, etc) must be constants. Hence, the total change in any of those properties (dℑ ) must be zero at equilibrium.

Explanation:

Answer:

Both bullets will hit the ground at the same time.

Explanation:

Let's only analyze the vertical problem.

Any object that is not in the floor or resting in some site is being affected by the gravitational force (remember that we are ignoring air resistance)

Then the acceleration of this object will be equal to the gravitational acceleration:

a = -9.8m/s^2

Where the minus sign is because this acceleration goes down.

To get the velocity equation we need to integrate over time, we will get:

v(t) = ( -9.8m/s^2)*t + v0

Where v0 is the initial vertical velocity.

To get the position equation we need to integrate over time again, we will get:

p(t) = (1/2)*( -9.8m/s^2)*t^2 + v0*t + H

Where H is the initial height.

p(t) = (-4.9 m/s^2)*t^2 + v0*t + H

The object will hit the ground when p(t) = 0

Then we need to solve for t the next equation:

(-4.9 m/s^2)*t^2 + v0*t + H = 0

Notice that the only things we need to know are:

H = initial height (we know that is the same for both bullets)

v0 = initial vertical velocity (also is the same for both bullets)

Notice that the horizontal velocity does not affect this equation, then we will get the same value of t for the dropped bullet and for the fired bullet.

This means that both bullets will hit the ground at the same time.

The magnitude of the charge on each plate of the capacitor is 12 ×10⁻⁶c

The capacity of the capacitor = 0.75F

Voltage = 16V

F = 0.75×10⁻⁶

A two-terminal electrical device known as a capacitor is capable of storing energy in the form of an electric charge. It is made up of two electrical wires that are spaced apart by a certain amount. A vacuum may be used to fill the space between the conductors.

Using the formula to determine the charge -

Q = CV

Where,

Q = Charge on each plate of the capacitor

C = Capacity of the capacitor

V = The potential difference across plates of the capacitor

Substituting the values -

Q = 0.75 × 10⁻⁶ x 16

Q = 12 x 10⁻⁶

Read more about capacitor on:

https://brainly.com/question/27393410

#SPJ1

Point B on the standing wave is referred to as a node. The correct option is B.

In a standing wave, a node refers to a point or region of minimal or zero amplitude. It is a point where the displacement of the wave is always zero, and it remains stationary as the wave oscillates. At a node, the particles or elements that make up the medium through which the wave is propagating do not experience any displacement from their equilibrium positions.

Nodes occur due to destructive interference between two waves of equal frequency and amplitude traveling in opposite directions. The superposition of these waves results in the formation of a standing wave pattern, characterized by nodes and antinodes.

Nodes are important features of standing waves and have several properties:

Fixed position: Nodes maintain a fixed location within the standing wave pattern and do not move as the wave oscillates.

Zero displacements: At nodes, the amplitude of the wave is zero, and there is no displacement of the medium particles or elements.

Energy concentration: Nodes are regions of low energy in a standing wave. The energy of the wave is primarily concentrated in the regions between the nodes, known as antinodes.

Separation distance: The distance between adjacent nodes in a standing wave is equal to half the wavelength of the wave.

Therefore, The correct answer is option B.

To learn more about Nodes click:

https://brainly.com/question/28191139

#SPJ1

Answer:

B

Explanation:

Answer:

Pressure

Explanation: I took a test

The relationship between velocity, acceleration, and displacement is given by v2 = vo2 + 2as, which is derived from Newton's law of motion. Where a, and s are the acceleration and displacement, and v and vo are the final and starting velocities, respectively. Using the second law of Newton,

The problem mentions the stone's initial speed as 3 m/s. Moreover, the stone will stop after 40m. This indicates that the displacement is 40m, and the final speed is 0 m/s. Calculations for rock acceleration are as follows:

(0 m/s)^2 = (3 m/s)^2 + 2a (40m).

9 m^2/s^2 = -2a(40m) (40m)

0.1 m/s2 is equal to a=-9m2/s2/80m.

This implies that the stone will slow down and come to a stop as a result.

F = 20 kg * -0.1 m/s2. To continue,

F = 2N = 20 kg * 0.1 m/s2. Thus, the frictional force is 2N in magnitude.

Learn more about the magnitude of the friction force here:

https://brainly.com/question/6376628

so hi the answert is probably 4 or e

Answer:

5.51 m/s2

Explanation:

HOPE THIS HELPS!!!!

Answer:

Explanation:

according to the graph at B the potential energy of the particle is 2J

therefore we can use the kinetic energy equation to calculate the particle's velocity or speed.

\(E_{k} =1/2mv^{2}\)

2J= 1/2*1/2kg*v^2

8=v^2

v= 2√2 ms-1

Answer:10

Explanation: Acceleration of car is given by a= v^2/r, v= 50m/s, r= 250m a= 10 m/s^2 2

Answer:

The correct answer is - phototropism, thigmotropism, hydrotropism, and gravitropism in order ( already match correctly).

Explanation:

phototropism is a phenomenon in which plants grow towards the light or sun which is accomplished by the hormone auxin in the cells far from the light.

Thigotropism is a type of plant growth that occurs around the tree to support itself which is a touch stimuli response.

The movement of the plant in the direction of the source of the water is known as hydrotropism. In which stimuli is humidity or the water concentration.

The movement of the plant or roots of the plants towards the soil or earth is known as gravitropism here gravity is the stimuli.

Answer:

Use the drop-down menus to complete each sentence.

A plant grows toward a sunny window. This response is an example of

phototropism

.

Sometimes a plant grows around a tree for support. This response is an example of

thigmotropism

.

The roots of a plant grow toward a water source. This response is an example of

hydrotropism

.

The roots of a plant grow down into the soil. This response is an example of

gravitropism

.

Explanation:

8.27 x 1013 meres is the orbital radius.

Jupiter's mass, 1.9 x 1027 kg, and the time interval, 16.9 days, are equal to 1.46 x 106 seconds. The radius is needed, thus r. Solution

The moon must be held in its orbit by a gravitational force equal to the centripetal force between Jupiter and the moon.

6.67 x 10⁻¹¹ N/m²kg

2 x 1.9 x 10/27 x 1.46 x 10'6 / 4 r = 6.85 x 102'7 G = 6.67 x 10'11 N/m2kg2 r = 8.27 x 10'7

The second-largest moon in Jupiter's orbit and the third-largest moon in the solar system is called Callisto. Of all the objects in our solar system, its surface has the most craters.

To know more about moon of Jupiter visit :-

https://brainly.com/question/20979520

#SPJ1

The acceleration of the object in the inclined plane is g sinθ.

The velocity of the object on the inclined plane is √(2gL sinθ).

Given that the inclined surface is a frictionless surface. So, the force of friction is zero. Hence the components of the weight of the object provides the necessary forces to slide the object over the inclined plane.

a) Newton's second law is applied to masses on inclination.

Acceleration due to multiplied by the sine of the angle of inclination provides the acceleration for a frictionless slope of angle in degrees.

The acceleration of the object in the inclined plane is,

a = g sinθ

b) Applying the third equation of motion,

v²- u² = 2as

v² = 2as

v² = 2 x g sinθ x L

Therefore, the velocity of the object on the inclined plane is given by,

v = √(2gL sinθ)

To learn more about inclined plane, click:

https://brainly.com/question/29360090

#SPJ1

Answer:

\(v=15.9499m/s\)

Explanation:

From the question we are told that:

Mass of wood \(m=1kg\)

force constants \(k= 200N-m\)

Coefficient of kinetic friction \(\mu= 0.2\)

Bullet mass \(m_b= 20 \approx 0.02kg\)

Spring compresion \(y=15cm \approx 0.15 m\)

Generally the equation for kinetic energy of bullet \(K>E_b\) is mathematically given by

Complete Question

\(K.E_b=spring potential energy+work done against friction\)

\(K.E_b=\frac{1}{2} mbv^2\)

\(\frac{1}{2} m_b v^2=\frac{1}{2} ky^2+\mu my\)

\(\frac{1}{2} (0.02)v^2=\frac{1}{2} (0.2)(0.15)^2+0.2(1)(0.15)\)

\(v=15.9499m/s\)

\(v\approx16m/s\)

Answer: You take the biggest number and subtract it from the smallest number.

Explanation: Hope this helps.

Answer:

Subtract the minimum data value from the maximum data value to find the data range.

Explanation:

\(Hope\) \(this\) \(helps!\)

Answer:

entropy

Explanation:

Answer:

a)\(\frac{F_1}{L}=1.95*10^-^5N\)

b)\(\frac{F_2}{L}=1.95*10^-^5N\)

Explanation:

From the question we are told that:

Distance between wires \(d=32.2\)

Wire 1 current \(I_1=2.75\)

Wire 2 current \(I_2=4.33\)

a)

Generally the equation for Force on \(l_1\) due to \(I_2\) is mathematically given by

\(F_1=I_1B_2L\)

Where

B_2=Magnetic field current by \(I_2\)

\(B_2=\frac{\mu *i_2}{2\pi d}\)

Therefore

\(F_1=I_1B_2L\)

\(F_1=I_1(\frac{\mu *i_2*l_1}{2\pi d})L\)

\(\frac{F_1}{L} =\frac{4*\pi*10^{-7}*2.75*4.33*100 }{2*\pi*12.2 }\)

\(\frac{F_1}{L}=1.95*10^-^5N\)

b)

Generally the equation for Force on \(I_2\) due to \(I_1\) is mathematically given by

\(F_2=I_2B_1L\)

Where

B_1=Magnetic field current by \(I_2\)

\(B_1=\frac{\mu *I_1}{2\pi d}\)

Therefore

\(\frac{F_2}{L} =I_2(\frac{\mu *I_1*I_2}{2\pi d})\)

\(\frac{F_2}{L}=1.95*10^-^5N\)

Answer:

Examples of Newton's third law of motion are ubiquitous in everyday life. For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers apply Newton's third law when designing rockets and other projectile devices.

Explanation:

Answer:

The decay constant, or "lambda" (λ), is the rate at which a radioactive isotope decays. It is usually measured in units of inverse time, such as seconds. In this case, the decay constant can be calculated as follows:

16:42

λ = (ln(2)/3.57 x 106) x (5.78 x 1017) = 0.

Explanation:

The tension in the swing's chain at the instant shown in the image is 441.6 N.

option D

At the bottom of the swing, the girl is traveling at a constant speed, so her acceleration is zero. Therefore, the net force acting on her is also zero.

Thus, we have:

0 = T - mg - mv²/r

where;

At the bottom of the swing, the radius is equal to the length of the chain, so we have:

r = L = 4.0 m

Substituting the values we have:

T = (32 kg)(9.8 m/s²) + (32 kg)(4 m/s)²/4.0 m

Solving for T, we get:

T = (32 kg)(9.8 m/s²) + (32 kg)(4 m/s)²/4.0 m

T = 441.6 N.

Learn more about tension in swing here: https://brainly.com/question/5843488

#SPJ1

To perform a drug lookup to ensure that the new compound has been added to the computer system properly we have to select the new from the toolbar at the top of the screen

A computer system is a collection of computers, related hardware, and related software. The central processing unit (CPU), memory, input/output, and storage devices are the four main components of a computer system. To produce the desired result, all of these parts operate in concert as a single unit.

Selecting the new from the toolbar at the top of the screen will allow us to run a drug lookup to make sure the new compound has been properly added to the computer system.

Therefore the correct answer is the option C

Learn more about the computer system here

https://brainly.com/question/2612067

#SPJ1

Answer:

1. The density of the cube is 1.03 g/mL.

2. Dish soap

Explanation:

1. Determination of the density of the cube.

From the question given above, the following data were obtained:

Mass (m) of cube = 21.7 g

Volume (V) of cube = 21 mL

Density (D) of cube =?

The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Thus, density can be expressed mathematically as:

Density (D) = mass (m) / volume (V)

D = m / V

With the above formula, we can obtain the density of the cube as follow:

Mass (m) of cube = 21.7 g

Volume (V) of cube = 21 mL

Density (D) of cube =?

D = m / V

D = 21.7 / 21

D = 1.03 g/mL

Thus, the density of the cube is 1.03 g/mL.

2. Determination of the layer of density the cube will settle in.

From the question given above,

Subtance >>>>>>>> Density

Vegetable oil >>>>> 0.91 g/mL

Grape juice >>>>>> 0.97 m/L

Water >>>>>>>>>>> 1 g/mL

Dish soap >>>>>>>> 1.03 g/mL

Maple syrup >>>>>> 1.37 g/mL

Comparing the density of the cube (i.e 1.03 g/mL) with those in the table able, we can conclude that the cube will settle in the DISH SOAP layer since they both have the same density.

Answer:

x = 3472 [m]

Explanation:

To solve this problem we must use the following expression of kinematics:

\(v_{f}^{2}= v_{i}^{2}+(2*a*x)\\\)

where:

Vi = initial velocity = 0

Vf = final velocity = 300 [km/h]

a = acceleration = 1 [m/s^2]

x = takeoff distance [m]

Note: The initial velocity is equal to zero as avion starts its movement from rest.

Now we have to convert units of kilometers per hour to meters per second, the final velocity.

\(300 [\frac{km}{h}]*[\frac{1h}{3600s} ]*\frac{1000m}{1km} \\= 83.33 [\frac{m}{s} ]\)

(83.33)^2 = 0 + (2*1*x)

2*x = 6943.88

x = 3472 [m]

Answer:

Explanation:

Given:

To Find:

Solution:

Here, we have a formula

Substituting the values

\(\implies\:\:F = \dfrac{G(1)(4)}{2^{2}}\)

\(\implies\:\:F = \dfrac{4G}{4}\)

\(\implies\:\:F = \dfrac{\cancel{4}G}{\cancel{4}}\)

\(\implies\:\:\red{F = G}\)

Know More:

The applied formula for the above solution is

\({\boxed{F_{G}=\dfrac{G.M_{1}.M_{2}}{r^{2}}}}\)

where,