a mass m at the end of a spring oscillates with a frequency of 0.83 hz. when an additional 780-g mass is added to m, the frequency is 0.60 hz. what is the value of m?

Answer:

KE1 = 1/2 m v1^2

KE2 = 3 KE1 = 3 * 1/2 m v1^2 = 1/2 m v2*2

3 v1^2 =  v2*2

v2 = 3^1/2 v1

Type Ia supernova is approximately 72.38 million parsecs away in the distant galaxy.

To determine the distance to a Type Ia supernova in a distant galaxy with an apparent magnitude of 10, we will use the distance modulus formula. The distance modulus formula relates the apparent magnitude (m), absolute magnitude (M), and distance (d) in parsecs. The formula is:

m - M = 5 * log10(d) - 5

For a Type Ia supernova, the absolute magnitude is roughly -19.3. Now, we have the values for m and M, and we can solve for d:

10 - (-19.3) = 5 * log10(d) - 5

Next, isolate log10(d):

29.3 = 5 * log10(d) - 5
34.3 = 5 * log10(d)

Now, divide by 5:

6.86 = log10(d)

To find d, raise 10 to the power of 6.86:

d = 10^6.86

Finally, calculate the distance:

d ≈ 72.38 million parsecs

So, the Type Ia supernova is approximately 72.38 million parsecs away in the distant galaxy.

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Answer:

Acceleration (a) = 40 m/s²

Explanation:

Given:

Initial velocity (u) = 6 m/s

Final velocity (v) = 4.4 m/s

Time taken (t) = 0.04sec

Find:

Acceleration (a) = ?

Computation:

We know that,

⇒ v = u + at

⇒ a = (v - u) / t

⇒ Acceleration (a) = (4.4 - 6) / 0.04

⇒ Acceleration (a) = (-1.6) / 0.04

Acceleration (a) = 40 m/s²

Answer:

KE = 1/2 M V^2

V = (2 KE / M)^1/2 = (2 * 40 / .1)^1/2 = 28.3 m/s

Answer:

Inclined planes are simple machines used to make work easier. Ramps, ladders, and staircases are all inclined planes.

Explanation:

Answer:

imma say yes

Explanation:

Answer:

f=1.5MHz or f=1500Hz

Explanation:

f=v/λ

3×10⁸/2×10-⁵

f=1500Hz

f=1.5MHz

To use all the energy from consuming a small order of french fries, the person would need to climb the 11.0 m stairway approximately 17.0 times.

The energy content of the small order of french fries is given as 241.0 Cal. We can convert this value to joules since the unit of energy in the metric system is the joule (J). 1 calorie (Cal) is equal to 4.184 joules (J). To use all the energy from consuming a small order of french fries, the person would need to climb the 11.0 m stairway approximately 57 times.

Energy content of the small order of french fries:

241.0 Cal × 4.184 J/Cal = 1007.144 J

Work done to climb the stairway:

(55.0 kg) × (11.0 m) × (9.8 m/s²) = 59294 J

Number of climbs needed to use all the energy:

1007.144 J ÷ 59294 J ≈ 17.0

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Answer:

The cha-cha-cha, is a dance of Cuban origin. It is danced to the music of the same name introduced by Cuban composer and violinist Enrique Jorrin in the early 1950s. This rhythm was developed from the danzón-mambo

Answer:

Answer:

Please translate this into Spanish! Sorry I can't :(

Explanation:

Disadvantages of Friction:

Friction produces unnecessary heat leading to the wastage of energy.

The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects.

Forest fires are caused due to the friction between tree branches.

Light is increasingly redshifted as the light source nears a black hole due to the immense gravitational pull exerted by the black hole.

As light travels away from a black hole, it has to work against the black hole's strong gravitational pull.

This causes the light's wavelength to stretch or "redshift" as the gravitational force increases with proximity to the black hole.

The greater the redshift, the more the light has been stretched, indicating a stronger gravitational pull.

Summary: The light from a source near a black hole experiences increased redshift due to the powerful gravitational pull of the black hole, which stretches the light's wavelength.

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Answer:

The Answer is A 9.80860 m/s²

Explanation:

The planes must be flying because of earths gravity when two airplanes are flying in the sky in such a way that the gravitational attractions between them decreases.

In mechanics, gravity—also known as gravitation—is the constant force of attraction that pulls all matter together. It has no impact on determining the internal characteristics of common matter because it is by far the weakest known force in nature.

All objects on Earth experience weight, or a gravitational pull that is proportional to their mass and is imposed by the planet's mass. The acceleration that gravity gives to objects falling freely serves as a gauge of its strength. The acceleration of gravity at Earth's surface is approximately 9.8 meters per second. As a result, during free fall, an object's speed increases by about 9.8 meters per second. A freely falling body accelerates to about 1.6 m/s2 at the Moon's surface.

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Answer:

distance is mesured in meters

velocity is measured in m/s

dispacment is mesured in meters +the direction

acceleration is measured in m/s square

Answer:

The basic unit of distance is the centimeter (cm).

Velocity is defined as the rate of change of distance of the body with respect to time. Its unit in SI is m/s.

The SI unit for displacement is the meter (m).

Unit of acceleration is the meter per second per second (m/s2).

The SI unit of speed is the meter per second (mps)

Explanation:

Logic...

Answer:

.3m

Explanation:

Apex

0.3 is right i just got it right on the test for A P E X :D

Answer:

Acceleration, \(a=4\ m/s^2\)

Explanation:

Given that,

Initial velocity, u = 20 m/s

Final velocity, v = 60 m/s

Time, t = 10 s

We need to find the acceleration of the car. It is equal to the change in velocity divided by time.

\(a=\dfrac{v-u}{t}\\\\a=\dfrac{60-20}{10}\\\\a=\dfrac{40}{10}\\\\a=4\ m/s^2\)

So, the acceleration of the car is \(4\ m/s^2\).

The velocity of the ball just before it hits the ground can be calculated using the formula v = g * t, where v is the velocity, g is the acceleration due to gravity (approximately 9.8 m/s^2), and t is the time taken to reach the ground.

In this case, the time taken by the ball to strike the ground is given as 3.5 seconds. The acceleration due to gravity remains constant at 9.8 m/\(s^2\)throughout the motion of the ball. By substituting these values into the formula, we can calculate the velocity.

v = g * t
  = 9.8 m/\(s^2\) * 3.5 s
  = 34.3 m/s

So, the velocity of the ball just before it hits the ground is 34.3 meters per second.

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The net radiant energy lost by the 2-cm-diameter cylinder per meter of length is X Joules. The temperature of the 6-cm-diameter cylinder is Y °C.

To calculate the net radiant energy lost by the 2-cm-diameter cylinder per meter of length, we need to consider the Stefan-Boltzmann law and the emissivities of both cylinders. The formula for net radiant heat transfer is given:

Q_net = ε1 * σ * A1 * (T1^4 - T2^4)

Where:

- Q_net is the net radiant energy lost per meter of length.

- ε1 is the emissivity of the 2-cm-diameter cylinder.

- σ is the Stefan-Boltzmann constant (5.67 x 10^-8 W/(m^2·K^4)).

- A1 is the surface area of the 2-cm-diameter cylinder.

- T1 is the temperature of the 2-cm-diameter cylinder.

- T2 is the temperature of the surroundings (27 °C).

To calculate the temperature of the 6-cm-diameter cylinder, we can use the formula for the net radiant energy exchanged between the two cylinders:

Q_net = ε1 * σ * A1 * (T1^4 - T2^4) = ε2 * σ * A2 * (T2^4 - T3^4)

Where:

- ε2 is the emissivity of the 6-cm-diameter cylinder.

- A2 is the surface area of the 6-cm-diameter cylinder.

- T3 is the temperature of the 6-cm-diameter cylinder.

By solving these equations simultaneously, we can find the values of Q_net and T3.

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A long cylinder having a diameter of 2 cm is maintained at 600 °C and has an emissivity of 0.4. Surrounding the cylinder is another long, thin-walled concentric cylinder having a diameter of 6 cm and an emissivity of 0.2 on both the inside and outside surfaces. The assembly is located in a large room having a temperature of 27 °C. Calculate the net radiant energy lost by the 2-cm-diameter cylinder per meter of length. Also, calculate the temperature of the 6-cm-diameter cylinder

Answer:

15 N

Explanation:

3 kg x5 m/ s square

15( kg x m/s square)

Force is a vector quantity hence it can be resolved into a vertical and a horizontal components.

1) The horizontal component of the applied force is given by;

Fnet = F cos θ

Fnet = 70.0N × cos (45.0)

Fnet = 49.5 N

2) The horizontal component of the frictional force is;

F = -Ff + mgsinθ

F = applied force

Ff =mgsinθ - F

Ff = (11 × 10 × sin 45) - 49.5

Ff = 28.3 N

Horizontal component of Ff

28.3 N cos 45 = 19.9 N

3) The applied force is given by;

F = 11 Kg ×  1.00m/s^2 = 11.0 N

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a. To find the electric field strength outside the cylinder, E = λ/(2πϵ0r), where r≥R. b. To find the electric field strength inside the cylinder, E = λr/(2πϵ0R^2), where r≤R.

the electric field strength inside and outside a charged cylinder can be determined using the formulas E = λr/2πϵ0R^2 and E = λ/2πϵ0r, respectively. The electric field strength outside the cylinder is proportional to the linear charge density and inversely proportional to the distance from the center of the cylinder. On the other hand, the electric field strength inside the cylinder is proportional to both the linear charge density and the distance from the center of the cylinder, the slide’s very long, uniformly charged cylinder have radius R and linear charge density λ. a. Find the cylinder's electric field strength outside the cylinder, r≥R.  but inversely proportional to the square of the radius of the cylinder. These formulas can be used to solve problems involving charged cylinders and their electric fields.

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Answer:No, the calculation you provided is incorrect. To find the relative speed of asteroid 1 with respect to asteroid 2, we need to use the relativistic velocity addition formula:

v = (v1 - v2) / (1 - v1*v2/c^2)

where v1 is the velocity of asteroid 1 relative to Earth, v2 is the velocity of asteroid 2 relative to Earth, and c is the speed of light.

Substituting the given values, we get:

v = (0.81c - 0.59c) / (1 - 0.81c * 0.59c / c^2)

v = 0.22c / (1 - 0.48)

v = 0.42c

Therefore, the speed of asteroid 1 relative to asteroid 2 is 0.42 times the speed of light (c).

Explanation:

The information provided is incomplete to calculate the voltage "ab" and answer the questions regarding the series circuit. Further details or equations are required to provide a precise response.

For the second part of the question, let's analyze the series circuit consisting of a 42 Ohm resistor and a 7.96 mH inductor connected to a 110V, 60 Hz source:

(a) The impedance of the circuit (Z) can be calculated using the formula Z = √(R^2 + (ωL)^2), where R is the resistance and ω is the angular frequency (2πf) of the source. Plugging in the values, Z = √((42^2) + ((2π * 60 * 7.96 * 10^(-3))^2)).

(b) The input current (I) can be determined using Ohm's Law: I = V/Z, where V is the source voltage and Z is the impedance.

(c) The voltage across the resistor (VR) can be calculated using Ohm's Law: VR = I * R. The voltage across the inductor (VL) can be determined by subtracting VR from the source voltage: VL = V - VR.

(d) The phasor diagram shows the relationship between the current and voltage in a circuit. It represents the magnitude and phase of the current and voltage. Drawing the phasor diagram would require knowledge of the phase relationship between the current and voltage in the circuit, which is not provided in the question.

Please provide additional information or equations to accurately answer the question.

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Answer:

   V = 12V,  V = 8V

Explanation:

a) In this series circuit the equivalent resistance is

          Req - R1 + R2

          Req = 30 + 20

          Eeq = 50 Ω

b) see attached

c) the circuit current is

          i = V / Req

          i = 20/50

          i = 0.4 A

voltages are>

         V = 0.4 30

          V = 12V

           V = 0.4 20

            V = 8V

Answer:

3)No, it's speed is constant.

Given that the mass of catapult, m = 18900 kg

The initial velocity is

As the body is at rest initially.

The final speed is

The time taken is t = 3.3 s

We have to find the force.

According to Newton's second law, the formula to calculate force is

Substituting the values, the force will be

Thus, the force is 349363.63 N

Answer:

Convex lenses concentrates the light energy to one spot on the paper so that the heat energy accumulates on that one small spot of paper. ... As the heat increases, combustion will occur when the spot becomes too hot and the paper will burn.

Explanation:

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