you have an rc circuit with a time constant of 6.27 s. if the total resistance in the circuit is 123.9 k , what is the capacitance of the circuit (in f)? don't type the units into the answer box.

Answer:

50 Watts

Explanation:

Power = work / time = 3000J / 60 seconds

Answer:

Electrons

Explanation:

Ionised atoms loose and gain electrons.

hope it helps!

For a frictionless pulley with mass connected by a light string, the acceleration for the system when released is equal to 6.5m/s²

Using the formula a = (m₂ - m₁)g/(m₁ + m₂)

Where a = acceleration, m = mass and g = gravity

m₁  = 2kg

m₂ = 10kg

g = 9.8m/s²

Applying to the formula, a = (m₂ - m₁)g/(m₁ + m₂) to find the acceleration of a frictionless pulley when released;

a = (10 - 2)(9.8)/(2 + 10)

a = 8(9.8)/12

a = 6.5m/s²

Therefore the system's acceleration 6.5m/s²

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Answer: The Universe has no scale, no matter and no size it is an infinite void of never-ending wonder.

Explanation:

Answer:

\(30 \div 33750 = 0.008888\)

Answer:

b. Thermal energy will flow from your hand to the snowball.

Explanation:

Answer:

B

Explanation:

Answer:

Explanation:

Momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity.

The period of an oscillating body is the smallest interval of time in which a system undergoing oscillation returns to the state it was in at a time arbitrarily chosen as the beginning of the oscillation.

Friction is a force between two surfaces that are sliding, or trying to slide, across each other.  Friction always slows a moving object down. The amount of friction depends on the materials from which the two surfaces are made. The rougher the surface, the more friction is produced.

The choice that correctly pairs a scientist with their work on atoms and elements is Thompson-the plum pudding model

Dalton's work on atoms and elements is called the atomic theory of matter. The quantum theory of the atom was proposed by Erwin Schrödinger. Bohr's work on atoms and elements is called planetary model / Bohr's atomic model. The uncertainty of particles in an atom is the work of Werner Heisenberg. Rutherford's work on atoms and elements is called Rutherford model of the atom or Rutherford atomic model.

The plum pudding model was the atomic model of J J Thomson. It was proposed in 1900. It explains the inner structure of the atom. He also discovered electrons during a cathode ray tube experiment in 1897.

Therefore, the choice that correctly pairs a scientist with their work on atoms and elements is Thompson-the plum pudding model

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The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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It will take approximately 15.97 minutes (or about 16 minutes) for the ice to start melting.

The question asks how much time passes before the ice starts to melt. To find this, we need to calculate the amount of heat needed to raise the temperature of the ice from -12.0 °C to 0 °C.

The specific heat of ice is given as 2100 J/kg⋅K, which means it takes 2100 Joules of heat to raise the temperature of 1 kilogram of ice by 1 Kelvin. Since we know the mass of the ice is 0.550 kg and we want to raise its temperature by 12 K (from -12.0 °C to 0 °C), we can calculate the amount of heat required:

Q = m * c * ΔT
Q = 0.550 kg * 2100 J/kg⋅K * 12 K
Q = 13,860 J

So, it will take 13,860 Joules of heat to raise the temperature of the ice to 0 °C.

The heat supplied to the container is given as 870 J/minute. To find the time it takes for the ice to start melting, we can divide the heat required by the rate of heat supply:

t = Q / (rate of heat supply)
t = 13,860 J / 870 J/minute
t = 15.97 minutes

Therefore, it will take approximately 15.97 minutes (or about 16 minutes) for the ice to start melting.

The time that passes before the ice starts to melt is approximately 16 minutes.

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Answer: the correct answer is 8 please let me know if I’m wrong

Explanation:

The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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The magnitude of the average force exerted on the ball by the glove is

The magnitude of the average force exerted on the ball by the glove is calculated as follows:

Data given:

Mass, m = 0.149 kg

Velocity, v = 15 m/s

Time, t = 0.050 seconds

However,

Acceleration = Δv / t

where;

Hence;

Force = Mass ×  Δv / t

Force = 0.149 × (15 - 0) / 0.050

Force = 44.7 N

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Answer:

Air steel water

Explanation:

Joshua’s study of the mental health of adolescents to fill in insufficient or incomplete information falls under the theoretical knowledge gap in practical research

Practical research is an approach that provides practical solutions to current problems or issues in society. It is an empirical or experimental investigation that employs scientific techniques to discover solutions to practical problems. In practical research, the knowledge gap occurs when the researchers cannot solve or provide explanations for real-world issues, which leads to an incomplete or insufficient understanding of the topic being investigated.

Knowledge gaps can occur in various forms and for various reasons, and identifying them is essential to conduct research to fill these gaps. In the research conducted by Joshua on the mental health of adolescents, he aims to fill the knowledge gap related to adolescents’ mental health by providing a comprehensive understanding of the subject matter.

The knowledge gap here is related to incomplete or insufficient information regarding the mental health of adolescents. Therefore, this type of knowledge gap is theoretical since it relates to the knowledge that is yet to be established or known. To conclude, Joshua's study of the mental health of adolescents falls under the theoretical knowledge gap in practical research.

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The astronaut being pushed back into his seat as the rocket accelerates - this was the  example of Newton's first law of motion.

According to Newton's First Law, a body in uniform motion or at rest will remain in that state up to and unless a net external force acts on it.

When the astronaut  worked at the space center launching rockets, no force is worked on him. When the rocket accelerates, according to  Newton's first law of motion, the astronaut remains in same motion, that's why, he pushed back into his seat .

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In order for the camera to follow the motion of the athlete, it must rotate at an angular velocity of approximately 1.74 rad/s.

We assume that the athlete has a non-zero size, then we can estimate the radius of the athlete's body as follows. Let's say the athlete has a height of 1.8 meters and a width of 0.5 meters. Then, we can estimate the radius of the athlete's body as the average of the height and width, or:

r = (1.8 m + 0.5 m) / 2 = 1.15 m

Using this value of r, we can calculate the angular velocity of the camera as:

ω = v / r

= 2 m/s / 1.15 m

≈ 1.74 rad/s

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Answer: I Believe Its radiant, electrical, mechanical!

Explanation:

Please correct me if i'm wrong!

Answer:

D) radiant, electrical, mechanical Is correct!

Explanation:

Hope this helps! :)

Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.

Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.

The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.

Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

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Utilizing the momentum principle is a good strategy since there are no outside forces acting on  system, its total linear momentum is constant, and the total beginning and final momentum of the system are equal.

The amount that motion is referred to as momentum. Since an object possesses speed if it is moving and has mass, amount is measurable in this situation. An object doesn't have momentum if it isn't moving. Nevertheless, despite its significance in everyday life, many people remained unaware of it.

Momentum is a vectors quantity since it has both size and direction. Since inertia has a direction, it is used to forecast the direction and rate of motion of objects after a collision. Below is a one-dimensional description of the fundamental characteristics of momentum.

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The work done in stretching the spring from its natural length to 10 inches beyond its natural length is 112 lb·in.

The work done in stretching a spring is given by the formula:

\(\[ W = \frac{1}{2} k (x_f^2 - x_i^2) \]\)

In this case, the spring is stretched 4 inches beyond its natural length, so the initial displacement is 4 inches. The force required to hold the spring at this displacement is 16 lb. We can use Hooke's Law to find the spring constant:

\(\[ k = \frac{F}{x_i} = \frac{16 \, \text{lb}}{4 \, \text{in}} = 4 \, \text{lb/in} \]\)

Now, we can calculate the work done in stretching the spring to 10 inches beyond its natural length:

\(\[ W = \frac{1}{2} (4 \, \text{lb/in}) \left( (10 \, \text{in})^2 - (4 \, \text{in})^2 \right) = 112 \, \text{lb·in} \]\)

Therefore, the work done in stretching the spring is 112 lb·in.

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sorry i did not mean to answer

Newton's second law allows to find the result for the friction coefficient of the street is:

Newton's second law establishes a relationship between the net force, the mass and the acceleration of the body.

           ∑ F = m a

Where bold indicates vectors, m is to mass and acceleration.

In the attached we see a free body diagram, it is a diagram of the forces without the details of the body, the x-axis is parallel to plane also shown with the positive in the direction of movement, going down the plane and the y-axis perpendicular to the plane.

Let's use trigonometry to break down the weight.

        Sin θ = \(\frac{W_x}{W}\)  

        cos θ = \(\frac{W_y}{W}\) / W

        Wₓ = W sin θ

         \(W_y\)  = W cos θ

We write Newton's second law for each axis.

y-axis

         N- \(W_y\)  = 0

         N = mg cos θ

x-axis

        Wₓ - fr = ma

Since they indicate that the body goes down at a constant speed, the acceleration is zero.

         W sin θ = fr

The friction force is the macroscopic representation of the interactions between the two surfaces and the formula.

         fr = μ N

we substitute.

          fr = μ mg cos θ

         mg sin θ = μ cos θ  

        μ = tan θ

Let's calculate.

         μ = tan 38.0

         μ = 0.78

In conclusion using Newton's second law we can find the results for the friction coefficient of the street is:

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Explanation:

The kinetic energy is basically the energy possesses by virtue of a body's motion

1. The truck moving to the quarry

let the mass be x

and the velocity is given as 20m/s

we know that the kinetic energy is given as

KE=1/2mv^2

KE=1/2(x)*20^2

KE=1/2(x)400

KE=200x

2. The truck leaving to the quarry

let the mass be 2x

and the velocity is given as 20m/s

we know that the kinetic energy is given as

KE=1/2mv^2

KE=1/2(2x)*20^2

KE=1/2(2x)400

KE=400x

From the analysis the kinetic energy is a function of mass, doubling the mass doubles the kinetic energy

The S.I. unit of E is NC^-1 and that of B is NA^-1 m^-1, then unit of E/B is A m/C (ampere meter per coulomb). This unit represents the ratio between the electric field and the magnetic field, indicating the strength and direction of the electromagnetic field.

The SI unit of electric field (E) is NC^(-1) (newton per coulomb) and the SI unit of magnetic field (B) is NA^(-1) m^(-1) (tesla). To determine the unit of E/B, we need to divide the unit of E by the unit of B.

Dividing the unit of E (NC^(-1)) by the unit of B (NA^(-1) m^(-1)), we can simplify the expression:

E/B = (NC^(-1))/(NA^(-1) m^(-1))

To simplify this expression, we can cancel out the common units in the numerator and denominator:

E/B = (N/C)/(N/(A m))

Now, let's simplify further by dividing the numerator and denominator:

E/B = (N/C) * (A m/N)

Canceling out the common units:

E/B = (A m)/(C)

Therefore, the unit of E/B is A m/C (ampere meter per coulomb).

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Answer:

Explanation: Part A:

The initial momentum of the two-car system is:

p = m1v1 + m2v2

After the collision, the two cars will be stuck together and move as one. The final momentum of the system is:

p' = (m1 + m2) v'

where v' is the final velocity of the two-car system. Since momentum is conserved, we have:

p = p'

Therefore,

m1v1 + m2v2 = (m1 + m2) v'

The force of friction opposing the motion of the car is:

Ff = μk N

where N is the normal force, which is equal to the weight of the cars:

N = (m1 + m2) g

The force of friction causes the two-car system to decelerate until it comes to a stop. The deceleration is given by:

a = Ff / (m1 + m2)

Substituting the expression for Ff, we get:

a = μk g

The distance the cars will move until they stop is given by:

d = v'² / (2a)

Substituting the expression for v' and a, we get:

d = (m1v1 + m2v2)² / (2μk g (m1 + m2)²)

Therefore, the expression for the distance the cars will move until they stop is:

d = (m1v1 + m2v2)² / (2μk g (m1 + m2)²)

Part B:

Since the two cars lock together and move as one after the collision, the direction of their movement will be determined by the vector sum of their initial velocities. To find the direction of the cars' movement after the collision, we can use the law of conservation of momentum in the x and y directions separately.

In the x-direction, the initial momentum is:

p_x = m1v1 + m2v2

After the collision, the two cars will move in the x-direction only, so the final momentum in the x-direction is:

p'_x = (m1 + m2) v'_x

where v'_x is the final velocity in the x-direction.

Since momentum is conserved in the x-direction, we have:

p_x = p'_x

Substituting the expressions for p_x and p'_x, we get:

m1v1 + m2v2 = (m1 + m2) v'_x

Therefore,

v'_x = (m1v1 + m2v2) / (m1 + m2)

In the y-direction, the initial momentum is:

p_y = 0 + 0 = 0

After the collision, the two cars will move in the y-direction only, so the final momentum in the y-direction is:

p'_y = (m1 + m2) v'_y

where v'_y is the final velocity in the y-direction.

Since momentum is conserved in the y-direction, we have:

p_y = p'_y

Substituting the expressions for p_y and p'_y, we get:

0 = (m1 + m2) v'_y

Therefore,

v'_y = 0

This means that the two cars will move in the x-direction only, and the direction of their movement after the collision is given by:

θ = tan⁻¹(v2/v1)

Answer:

A. \(1.88\times 10^{-11}\,F\).

Explanation:

By definition of Electric Capacitance, the capacitance of the system (\(C\)), in farads, is described by the following formula:

\(C = \frac{q}{V}\) (1)

Where:

\(q\) - Electric charge, in coulombs.

\(V\) - Voltage, in volts.

If we know that \(q = 9.4\times 10^{-10}\,C\) and \(V = 50\,V\), then the capacitance of the system is:

\(C = \frac{9.4\times 10^{-10}\,C}{50\,V}\)

\(C = 1.88\times 10^{-11}\,F\)

The correct answer is A.

Answer:

A is Spring

B is Winter

C is Fall

D is Summer

Explanation:

Answer:

Yes

Explanation:

Yes, displacement can be zero even if the distance is not zero. For example, when a body is thrown vertically upwards from a point A on the ground, after some time it comes back to the same point A.

Answer:

154.83 W

Explanation:

Applyying,

P = V²/R..................... Equation 1

Where P = power dissipated, V = voltage R = resistance

But,

R = Lρ/A................. Equation 2

Where L = length of the wire, A = crosssectional area,  ρ = resistivity of the wire.

Substitute equation 2 into equation 1

P = V²/(Lρ/A)

P = AV²/Lρ........................ Equation 3

From the question,

Given: L = 30 cm = 0.3 m, ρ = 1.69 x 10⁻⁸Ω⋅m, V = 1 V.

But,

A = πd²/4, Where d = 1 mm

A = (3.14×0.001²/4) = 7.85×10⁻⁷ m²

Substitute these values into equation 3

P = (7.85×10⁻⁷×1²)/(0.3×1.69 x 10⁻⁸)

P = 154.83 W