You are a musician and want to know the frequency of a guitar string you measure the length of the string to be 0.6meters and the tension in the string to be 0.6 newton if the mass of the string is 0.01 kg what is the frequency of string? Hertz (Hz) length meter (m) tension newton(N)mass(M) kilograms kg

Answer:

Option C

Explanation:

Divide the issue into its main parts and discuss each part.

Let's name the variables we know and those we need:

q1: first charge; q1 = 9.12*10^-9 C

q2: second charge; q2 = -2.78*10^-9 C

r: distance between midpoint and the charges; r = 0.0499/2 = 0.02495 m

k: Coulomb's constant; k = 8.99*10^9

B1: field strength caused by first charge

B2: field strength caused by second

B1 = k|q1|/r^2 = 8.99*10^9*9.12*10^-9/0.02495^2

B1 = 131708.387 N/C

B2 = k|q2|/r^2 = 8.99*10^9*2.78*10^-9/0.02495^2

B2 = 40147.951 N/C

B = B1+B2 = 131708.387+40147.951 = 171856.338 N/C = 1.71856*10^5 N/C

If people want to help their community, they should research opportunities corrects the pronoun errors in this sentence.

This is defined as a word which is used instead of a noun and examples include he, she etc.

In this scenario, the word 'people' agrees with the possessive adjective 'their' and the personal pronoun 'they', which is referred to the third-person plural hence the reason why option C is the most appropriate choice.

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Answer:

D

Explanation:

D

Answer:

Explanation:

This question comes from Conservation of Momentum

M1=2000kg

U1=34.1ms^-1

Now this truck crashes into a stationary corolla

Since its stationary

U2=0

M2=1100kg

The Moving Truck came to a complete stop(or rest)

Its Final Velocity V1=0

Mass still remains the same

The corolla will move with a speed V2

Applying the formula for conversation of Momentum

M1U1 + M2U2 = M1V1 + M2V2

2000(34.1) + 1100(0) = 2000(0) + 1100(V2)

2000(34.1) = 1100(V2)

V2 = 2000(34.1)/1100

V2 =62ms^-1

Answer:0.125m/s

Explanation:

A trolley with a 5.0 cm long card passed through a single light gate. The time recorded by a digital timer was 0.40 s.then the average speed of the trolley would be 0.125 ms⁻¹.

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is meter/second. The generally considered unit for speed is a meter per second.

The mathematical expression for average speed is given by

average speed = distance /total time

As given in the problem a trolley with a 5.0 cm long card passed through a single light gate. The time recorded by a digital timer was 0.40 s

100 cm = 1 m

1 cm = 1/100 m

5 cm = 5×1/100 m

        =0.05 m

By substituting the values in the formula of the average speed

average speed = distance /total time

                          =0.05/0.4 m/s

                          =0.125 m/s

Thus, the average speed of the trolley would be 0.125 ms⁻¹.

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The volume of the gas at 101.3 kPa would be approximately 651.25 cm³.

To calculate the change in volume of a gas from an initial pressure to a final pressure, we can use Boyle's law, which states that the pressure and volume of a gas are inversely proportional at constant temperature.

Boyle's law can be expressed as:

P1 * V1 = P2 * V2

Where:

P1 = Initial pressure (80.8 kPa)

V1 = Initial volume (817 cm³)

P2 = Final pressure (101.3 kPa)

V2 = Final volume (to be calculated)

Let's plug in the values into the equation and solve for V2:

80.8 kPa * 817 cm³ = 101.3 kPa * V2

V2 = (80.8 kPa * 817 cm³) / 101.3 kPa

V2 ≈ 651.25 cm³

Therefore, the volume of the gas at 101.3 kPa would be approximately 651.25 cm³.

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Answer:

Explanation: because Keller concluded that the circular obits of the Copernican model weren't correct paths of planets were elleptical

At 30°C, the rms speed of a sample of oxygen with a molar mass of 16 g/mol is approximately 482.34 m/s.

The root mean square (rms) speed of a gas molecule is a measure of the average speed of the gas particles in a sample. It can be calculated using the formula:

vrms = √(3kT/m)

Where:

vrms is the rms speed

k is the Boltzmann constant (1.38 x 10^-23 J/K)

T is the temperature in Kelvin

m is the molar mass of the gas in kilograms

To calculate the rms speed of oxygen at 30°C (303 Kelvin) with a molar mass of 16 g/mol, we need to convert the molar mass to kilograms by dividing it by 1000:

m = 16 g/mol = 0.016 kg/mol

Substituting the values into the formula, we have:

vrms = √((3 * 1.38 x 10^-23 J/K * 303 K) / (0.016 kg/mol))

Calculating this expression yields the rms speed of the oxygen sample:

vrms ≈ 482.34 m/s

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Answer:

1)\(t=2.26\: s\)

2)\(S=33.9\: m\)

3)\(v=26.77\: m/s\)

4)\(\alpha=55.92\)

Explanation:

1)

We can use the following equation:

\(y_{f}=y_{0}+v_{iy}t-0.5*g*t^{2}\)

Here, the initial velocity in the y-direction is zero, the final y position is zero and the initial y position is 25 m.

\(0=25-0.5*9.81*t^{2}\)

\(t=2.26\: s\)

2)

The equation of the motion in the x-direction is:

\(v_{ix}=\frac{S}{t}\)

\(15=\frac{S}{2.26}\)

\(S=33.9\: m\)

3)

The velocity in the y-direction of the stone will be:

\(v_{fy}=v_{iy}-gt\)

\(v_{fy}=0-(9.81*2.26)\)

\(v_{fy}=-22.17\: m/s\)

Now, the velocity in the x-direction is 15 m/s then the velocity will be:

\(v=\sqrt{v_{x}^{2}+v_{fy}^{2}}=\sqrt{15^{2}+(-22.17)^{2}}\)

\(v=26.77\: m/s\)

4)

The angle of this velocity is:

\(tan(\alpha)=\frac{22.17}{15}\)

\(\alpha=tan^{-1}(\frac{22.17}{15})\)

\(\alpha=55.92\)

Then α=55.92° negative from the x-direction.

I hope it helps you!

The statement" The direction of the force on the charge placed in the electric field is upward" is false because the direction of the force on a negative charge (-6 C) placed in an upward-directed uniform electric field of magnitude 24 N/C would be downward.

The direction of the force on a charged particle placed in an electric field is determined by the charge of the particle and the direction of the electric field. In this case, a charge of -6 C is placed in an electric field directed upward with a magnitude of 24 N/C.

The force on a charged particle in an electric field can be calculated using the formula:

F = q * E

Where F is the force, q is the charge of the particle, and E is the electric field.

Since the charge q in this case is negative (-6 C) and the electric field E is directed upward, we can substitute the values into the formula:

F = (-6 C) * (24 N/C)

F = -144 N

The negative sign in the force value indicates that the force is in the opposite direction to the electric field. Therefore, the force on the charge placed in the electric field is downward, not upward.

The force on a negative charge is always opposite to the direction of the electric field. This is because negative charges experience an attractive force towards positive charges, and electric fields are directed from positive charges to negative charges.

Therefore, the statement "The direction of the force on the charge placed in the electric field is upward." is false.

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Answer:

Most likely (B)

Explanation:

B in the passage is the most representative out of all your choices and it has evidence from the passage  

Hope dis helps Jit!

Sorry i forgot to type C

B and C both measure mass while the others are calculations and are bias

The following experimental set-ups would allow a student to calculate the magnitude of the gravitational field strength using only the quantities measured:

A gravitational field is a model used in physics to explain the effects that a large thing has on the area surrounding it, exerting a force on smaller, less massive bodies.

When  a known mass from a spring scale is hung; by e; measuring the spring scale reading when the mass is at rest, the magnitude of the gravitational field strength ( reading/mass) can be calculated.

When  a heavy metal ball is dropped, by measuring e the drop height and the time it takes the ball to hit the ground, the magnitude of the gravitational field strength ( h = gt²/2) can be calculated. Hence, option (B) and option (D) is correct.

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Answer:

Please mark me brainliest and thank me and rate me

Answer:

in mechanical waves

Explanation:

A mechanical wave is a disturbance that moves and transports energy from one place to another through a medium. In sound, the disturbance is a vibrating object. And the medium can be any series of interconnected and interactive particles.

The 10/90 principle can be a powerful tool for taking control of your situation and improving your life. By taking responsibility for what you can change and focusing on your reaction to the situation, you can make positive changes in your life and become the master of your own destiny.

The 10/90 principle refers to the idea that life is made up of 10% of what happens to you and 90% of how you respond to it. In other words, you may not be able to control what happens to you, but you can control your reaction to it. By taking responsibility for what you can change rather than being a victim of what you cannot change, you can take control of your situation and improve your life.One example of a situation where the 10/90 principle could be applied is losing a job. Losing a job can be a devastating experience, and it can be easy to feel like a victim in this situation. However, by applying the 10/90 principle, you can take control of your situation and make positive changes in your life.The first step in applying the 10/90 principle in this situation would be to take responsibility for what you can change. This could mean updating your resume, networking with others in your field, and applying for new jobs. By taking action and doing what you can to find a new job, you are taking control of your situation and improving your chances of finding a new job.
The second step would be to focus on your reaction to the situation. Instead of dwelling on the negative aspects of losing your job, try to focus on the positive aspects. This could mean using the extra time to pursue a new hobby or spend more time with family and friends. By focusing on the positive aspects of the situation, you are taking control of your reaction and improving your overall well-being.
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Answer:

68.5 meters

Explanation:

To solve this problem, we can use trigonometry and create a right triangle with the river as the hypotenuse.

Let's call the width of the river "w". We can use the sine function to find the length of the opposite side of the triangle (the distance from the surveyor to the tree).

sin(33.4°) = opposite/hypotenuse

sin(33.4°) = w/x

w = x * sin(33.4°)

w = 118 m * sin(33.4°)

w = 68.5 m

Therefore, the width of the river is approximately 68.5 meters.

Answer:

A. Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.

Explanation:

Electromagnetic waves are waves produced by the interaction between both magnetic and electric fields. These waves have some properties that make them to be arranged in a definite form producing an electromagnetic spectrum.

The spectrum has a general property of which as the wavelength of the waves increases, the frequency decreases. And vice versa.

Thus, the energy of the waves increases as the frequency increases.

Gamma rays have higher frequency, but shorter wavelength. While microwaves has lower frequency, but higher wavelength.

Answer:

Yes, the answer is A

Explanation:

Following are the answers:

1. To calculate the pressure exerted by the water column on the surface of the mercury, we can use the formula:

Pressure = force/area

The force is the weight of the water column and the area is the cross-sectional area of the container.

The weight of the water column is given by the mass of the water times the acceleration due to gravity:

mass = density x volume

volume = area x height

So, mass = density x area x height = 1000 kg/m^3 x pi x (0.025 m)^2 x 0.25 m = 0.196 kg

Weight = mass x acceleration due to gravity =\(0.196 kg * 9.8 m/s^2\) = 1.92 N

The cross-sectional area of the container is pi x (0.025 m)^2 =\(0.196 m^2.\)

So, Pressure = force/area = \(1.92 N/0.196 m^2 = 9.79 N/m^2\) or 9.79 Pa

2. To calculate the density of the oil, we can use the formula:

density = mass/volume

Since the height of the oil column is 0.92 m and the cross-sectional area of the container is 0.196 m^2, the volume of the oil column is 0.196 m^2 x 0.92 m = 0.18012 m^3.

We do not know the mass of the oil, but we can calculate it using the pressure exerted by the oil column on the surface of the mercury:

Pressure = force/area = density x acceleration due to gravity x height

So, density = Pressure/ (acceleration due to gravity x height) = 9.79 N/m^2 / (9.8 m/s^2 x 0.92 m) = 1060 kg/m^3.

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According to the given statement:

I) acceleration a=2m/s²

ii) deceleration a=−1  m/s²

iii) the distance travelled =200  m.

Velocity's rate of change with time, in both terms of speed and direction. A point or object moving straight ahead is accelerated when it increases or decelerates. Even if the speed remains constant, motion on the a circle increases because the orientation is always shifting.

Briefing:

You use the standard formulas for distance as a function of speed, acceleration and time:

st = v0t + 0.10at²  for acceleration ( a >0) and deceleration ( a <0), or at constant speed ( a =0).

Now  a  is not given for acceleration and deceleration, so we need to compute this from

vt=v₀+at

Acceleration:  

20=10a⟹a=2m/s²

Distance travelled:  

0.10∗10∗10²=100  m

Distance travelled while at constant speed:

s=vt=20∗20=400  m

Deceleration:  

0=20+20a⟺a=−1  m/s²

Distance travelled:

20∗20+0.1(−1)20²=400−2∗100

=200  m.

So the total distance travelled is  100+400+200=700m

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Answer:

The electromagnetic force.

Answer:

It is electrical force

Explanation:

i got it wrong on A P E X  with magnetic hope this helps!

i) The initial deceleration of the car is -1.6 m/s² and  the time taken is 5 seconds

ii) The final deceleration is -1 m/s²

iii) The total dispalcement = 1016 m

The initial deceleration of the car is given by the formula below:

v² = u² + 2as

where;

Solving for a;

12² = 20² + 2 * a * 80

a = -1.6 m/s²

Time taken, t = v - u / a

t = 12 - 20 / (-1.6)

t = 5 seconds

Final deceleration:

a = v - u / t

a = 0 - 12 / 12

a = -1 m/s²

iii) Displacement at constant velocity = 12 * 1 * 60

Displacement at constant velocity = 720 m

Final displacement, s = ut + 0.5at²

s = 12 * 12 + 0.5 * 1 * 12²

s = 216 m

Total dispalcement = 80 + 720 + 216

Total dispalcement = 1016 m

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Answer:

B) It appears to be SHM (simple harmonic motion) which is also the projection of an object moving in a circular path on either the x or y axes.

A thermodynamic process is a chemical or physical process that takes place in a thermodynamic system, which changes the system from an initial state to a final state. There are different forms of thermodynamic processes. Isobaric and isovolumetric processes are two of these processes.

The key difference between the isobaric and isovolumetric processes is that the isobaric process occurs at constant pressure while the isovolumetric process occurs at constant volume.

Answer:

Explanation:

The energy transfer are not changing in kinetic energy. They are changes in bonding energy between the molecules.

(a) The amplitude of the wave is determined as 8 cm.

(b) The period of the wave motion is  20 s and the frequency of the wave is 0.05 Hz

(c) The wavelength of the wave is 500 cm.

(a) The amplitude of the wave is the maximum displacement of the wave.

from the graph, amplitude of the wave = 8 cm

(b) The period of the wave motion is calculated as;

T = 20 s

The frequency of the wave = 1/T = 1/20 s = 0.05 Hz

(c) The wavelength of the wave is calculated by applying the following wave formula.

λ = v / f

λ = 25 cm/s / 0.05 Hz

λ = 500 cm

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To determine which gas has the higher initial temperature, we can use the formula:

thermal energy = (3/2) nRT

where n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

For gas A, we have:

5000 J = (3/2) (2.5 mol) R T_A

For gas B, we have:

8400 J = (3/2) (2.5 mol) R T_B

Dividing the equations, we get:

5000 J / 8400 J = T_A / T_B

Solving for T_A, we get:

T_A = (5000 J / 8400 J) T_B

T_A / T_B = 0.5952

So gas B has the higher initial temperature.

To find the final thermal energy of gas A, we need to use the conservation of energy:

thermal energy_A + thermal energy_B = total thermal energy

We know that the initial total thermal energy is 5000 J + 8400 J = 13400 J. We also know that the number of moles and the specific heat capacity of each gas do not change. Therefore, we can write:

(3/2) (2.5 mol) R T_A,f + (3/2) (2.5 mol) R T_B,f = 13400 J

Simplifying and substituting R = 8.31 J/mol K, we get:

T_A,f + T_B,f = 4528.6 K

We also know that the two gases are in thermal equilibrium, so they must have the same final temperature:

T_A,f = T_B,f

Substituting into the equation above, we get:

2T_A,f = 4528.6 K

T_A,f = 2264.3 K

Using the formula for thermal energy, we can calculate the final thermal energy of gas A:

thermal energy_A,f = (3/2) (2.5 mol) (8.31 J/mol K) (2264.3 K) = 77646 J

Therefore, the final thermal energy of gas A is 77646 J.

To find the final thermal energy of gas B, we can use the same equation as above, but substitute T_A,f for T_B,f:

(3/2) (2.5 mol) R T_A,f + (3/2) (2.5 mol) R T_A,f = 13400 J

Simplifying and substituting R = 8.31 J/mol K, we get:

2T_A,f = 4528.6 K

T_A,f = 2264.3 K

Using the formula for thermal energy, we can calculate the final thermal energy of gas B:

thermal energy_B,f = (3/2) (2.5 mol) (8.31 J/mol K) (2264.3 K) = 77646 J

Therefore, the final thermal energy of gas B is also 77646 J.

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ANSWER

False.

EXPLANATION

Nuclear binding energy is the energy that is required to split the nucleus (of an atom) into nucleons: protons and neutrons.

The binding energy of a nucleus is always positive because nuclei require energy to separate them and it is impossible for nuclei to gain energy by being separated.

Therefore, the answer is false.

Answer:

time period of the wave

Answer:

The Frequency of a wave is the reciprocal of its Period

The Period of a wave is the reciprocal of its frequency

Explanation:

A P E X

Answer:

Explanation:

a = F/m

a = 30/5

a = 6 m/s²

Answer:

Acceleration is 6 meters per square seconds.

Explanation:

Data:

Use formula:

Replace:

Solve the division, remember remember that N / kg is equal to m/s²: