A 1.00 meter length of nichrome wire with a cross-sectional area of 7.85 X 10^-7 meters^2 is connected to a 1.5 volt battery. Calculate the resistance of the wire.

If the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.

The gravitational force between two objects is determined from Newton's second law of universal gravitation.

F = GmM/R²

where;

when the distance halved

F = GmM/(0.5R)²

F = GmM/(0.25R²)

F = 100GmM(25R²)

F = 4GmM/R²

Fnet = 4F

Thus, if the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.

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Answer:

1) Acids have a sour taste , Bases have a bitter taste.

2) Acids turn blue litmus paper into red , Bases turn red litmus paper into blue.

3) Acids react with most metals to form Hydrogen gas but only a few base react with a few metals to form Hydrogen gas

4) Both will conduct electricity. Both acids & bases are good electrolytes. Strong acids & bases conduct more electricity than that of weak acids & bases

Fill in the blanks with the properties of acids and bases as follows:

The properties of acids are as follows:

Therefore, fill in the blanks with the properties of acids and bases are well described above.

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Answer:when a body possesses more than one simple motion, it is called a multiple motion.

Explanation:you are traveling by a train. Your wrist watch is also sharing the linear motion of the train. But the hands of the watch are also undergoing rotational motion. Thus they have 2 kinds of motion, I, e, Multiple motion.so also the blades of the fan in the train have multiple motion (a linear motion of the train and the rotation).

Answer: Light ray X will eventually hit the borader

Explanation:

her maximum speed during the measurement is 0.164 m/s.

We can use the formula for the maximum speed of a mass-spring system:

\(v__{max}\) = A * ω

where A is the amplitude of the oscillation and ω is the angular frequency, given by:

ω = √(k/m)

where k is the spring constant and m is the mass.

Substituting the given values, we have:

ω = √(2500 N/m / 66 kg) = 7.13 rad/s

and

A = 2.3 cm = 0.023 m

Therefore, the maximum speed is:

\(v_{max}\) = A * ω = 0.023 m * 7.13 rad/s = 0.164 m/s

What is oscillation?

Oscillation refers to a repeated back-and-forth motion or a cyclic variation between two states or values around a central point or equilibrium.

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The equation for energy in the context of fluid dynamics, specifically in Computational Fluid Dynamics (CFD), is typically represented by the conservation of energy equation, also known as the energy equation or the first law of thermodynamics. The equation can be expressed as:

ρ * (du/dt + u * ∇u) = -∇p + ∇⋅(μ * (∇u + (∇u)^T)) + ρ * g + Q

where:

ρ is the density of the fluid

u is the velocity vector

t is time

∇u represents the gradient of velocity

p is the pressure

μ is the dynamic viscosity

g is the gravitational acceleration vector

Q represents any external heat source/sink

The physical meaning of energy in CFD is the total energy of the fluid system, which includes kinetic energy (associated with the motion of the fluid), potential energy (associated with the elevation of the fluid due to gravity), and internal energy (associated with the fluid's temperature and pressure). The energy equation describes how this total energy is conserved and transformed within the fluid system.

In CFD simulations, the energy equation plays a crucial role in modeling the energy transfer, heat transfer, and flow characteristics within the fluid. It helps in understanding how energy is distributed, dissipated, and exchanged within the fluid domain. By solving the energy equation numerically, CFD simulations can predict temperature profiles, flow patterns, heat transfer rates, and other important parameters that are essential for various engineering applications, such as designing efficient cooling systems, optimizing combustion processes, and analyzing thermal behavior in fluid flows.

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The rate constant for the reaction is approximately 0.0169 min⁻¹. Rounded to two significant figures, this is equivalent to 1.7 × 10⁻² min⁻¹, which is closest to option C (3.3 × 10⁻² min⁻¹).

The integrated rate law for a first-order reaction is:

ln([A]/[A]₀) = -kt

where [A]₀ is the initial concentration of A, [A] is the concentration of A at time t, k is the rate constant, and ln is the natural logarithm.

Since the reaction is 25% complete at 42 min, the concentration of A at that time is 75% of the initial concentration:

[A]/[A]₀ = 0.75

Taking the natural logarithm of both sides of this equation gives:

ln([A]/[A]₀) = ln(0.75)

Substituting this expression and the given time into the integrated rate law gives:

ln(0.75) = -k(42 min)

Solving for k, we get:

k = -ln(0.75)/42 min

k ≈ 0.0169 min⁻¹

Therefore, the rate constant for the reaction is approximately 0.0169 min⁻¹. Rounded to two significant figures, this is equivalent to 1.7 × 10⁻² min⁻¹, which is closest to option C (3.3 × 10⁻² min⁻¹).

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Answer:

680.4

Explanation:

the formula is V1 over T1 is equals (=) to V2 over T2 .

and we have been given that

V1 represents 315

T1 represents 25°c

V2 is unknown and what we're finding

T2 represents 54°c

so 315×54 all over 25 ...gives you 680.4

Answer:

speeding up

Explanation:

because its speeding up, theres going to be more newtons in the back

i really hope this is right, tell me if so

Based on the data provided, the force that must be applied at the small piston is f = 1500 × 9.81 × 250/A.

Pascal's principle states that the pressure applied to an enclosedfluid is transmitted undiminished tp every portion of the fluid.

Mathematically:

f/a= F/A

where

Therefore:

f = Fa/A

Since the area of the large piston is not given

f = 1500 × 9.81 × 250/A

Therefore, the force that must be applied at the small piston is f = 1500 × 9.81 × 250/A.

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Answer:The equation is balanced for both charge and nucleon number, as required.

Explanation:2713Al + 42He → 3015P + n

Answer:

incidence ray is the one that comes from the source and hits the object while reflected ray is the ray that leaves the object after striking it

Explanation:

When 110V is applied to the secondary coil, the voltage across the primary coil of this step-down transformer is 2420V.

A step-down transformer is a device that reduces the voltage from the primary coil to the secondary coil. In this case, the voltage across the primary coil is 110V, and the voltage across the secondary coil is 5.0V. The ratio of the number of turns in the primary coil to the number of turns in the secondary coil determines the voltage transformation.

Let's denote the primary coil's number of turns as Np and the secondary coil's number of turns as Ns. The turns ratio is Np/Ns = 110V/5.0V, which simplifies to Np/Ns = 22.

Now, if we apply 110V to the secondary coil, we can find the voltage across the primary coil (Vp) by rearranging the turns ratio formula: Vp = (Np/Ns) * Vs, where Vs is the voltage across the secondary coil.

Substituting the values, we get Vp = (22) * 110V, which results in Vp = 2420V.

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Answer: 1820

Explanation:

acellus

The 8 ball's velocity equals 2 m/s if both balls have a mass of 0.12 kg and the cue ball's velocity is 4 m/s after the collision.

When the ball strikes the white ball, what will happen to its momentum?

Momentum will remain constant regardless of the impact type. This implies that the overall momentum of all colliding objects prior to the collision will match the total momentum following the collision.

How is momentum conservation used in the game of pool?

All of the balls' momentum, which is the sum of their mass and velocity, must be preserved upon each contact. To put it another way, the overall momentum before and after the contact must be equal.

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The correct answer is D. Amount of time and area of physical contact between the substances.

Explanation:

Heat transfer refers to the flow of thermal energy or heat between two or more objects. This process involves multiple factors and implies heat from the hottest object goes to the coldest one until there is an equilibrium. To begin, heat transfer depends on the amount of thermal energy in the objects because objects must have a different amount of thermal energy for heat to flow.

Besides this, the amount of energy that flows depends on the time and the contact between the substances of objects. Indeed, objects need to be in contact or close to each other for heat to transfer, and the time needs to be enough for the process to occur. For example, if you place a pot over the fire just for a few seconds it is likely the heat transferred is minimal, which does not occur if you leave the pot more time. At the same time if the pot is in close contact with fire more heat will be transferred.-

Answer:

the answer is D on edginuity.

Explanation:

Answer:

all I know is C

are there more questions? anyone?

-KARL IS STOOPID

Explanation:

Answer:

29 m/s.

Explanation:

Hope this helps.

Answer:

T = 0.00025 secs

Explanation:

Given:

Frequency = 4 kHz = 4000 Hz

Required:

Time Period = ?

Formula:

T = 1/f

Solution:

T = 1/4000

T = 0.00025 secs

Answer:

0.00025 seconds

Explanation:

Time period = 1 / frequency

= 1/4000

= 0.00025 seconds

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In a purely resistive circuit, the phase difference between the voltage and current is zero, which means the circuit consumes all the power delivered to it by the source. In other words, the power delivered is entirely converted into heat energy dissipated by the resistance. Therefore, 100% of the apparent power is used or consumed in a purely resistive circuit. So this statement is true.

Apparent power is the product of the root mean square (RMS) voltage and RMS current, and it represents the total power delivered to the circuit. In a purely resistive circuit, the apparent power and real power are equal since there is no reactive power. Reactive power arises in circuits with inductance and capacitance, where energy is stored and returned to the circuit, leading to a phase shift between voltage and current.

In a purely resistive circuit, the current and voltage are in phase with each other, meaning they reach their maximum and minimum values at the same time. This results in a power factor of 1, which indicates that all of the apparent power drawn by the circuit is converted into real power, which is the actual power consumed by the resistive elements in the circuit. Therefore, it is true that 100% of the apparent power is used or consumed in a purely resistive circuit.

This is not the case in circuits that have reactive elements, such as inductors and capacitors, where the current and voltage are out of phase with each other. This results in a power factor that is less than 1, and the apparent power drawn by the circuit includes both real power and reactive power. In such cases, some of the apparent power is not consumed by the resistive elements but instead is stored in the reactive elements and returned to the circuit at a later time.

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