A jet aircraft with a mass of 4,550 kg has an engine that exerts a force (thrust) equal to 59,500 N. (a) What is the jet's acceleration when it takes off? (Give the magnitude. )

Answer:

5.5 J

Explanation:

W=F*D=5*1.1=5.5 J

Answer:

Because the hot tea is hot from a microwave or coffee machine when iced tea is cold from ice in the tea.

Explanation:

Answer:

Our mass is the amount of matter that we consist of. This mass does not change when we change planets. However, if we went from Earth to Mars, our weight would change because Mars has less gravity than Earth. Gravity is a force pulling matter together.

Answer:

The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.

1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

Object height = 48.45 cm

Focal length, f = -15.5 cm

Image distance, v = -13.5 cm

Object distance, u = ?

Relationship between image distance, object distance, and focal length is:

Magnification = |v/u|

Image height, H = 6.25 cm

Object height, h = ?

Object height = 48.45 cm

In 1912 Wertheimer discovered the phi phenomenon, an optical illusion in which stationary objects shown in rapid succession, transcending the threshold at which they can be perceived separately, appear to move.

When two neighbouring optical stimuli are presented in alternation with a relatively high frequency, an apparent motion is seen that is known as the phi phenomenon. At higher frequencies, beta movement is visible, but the stimuli themselves don't seem to move.

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Answer:

Neil Armstrong

Explanation:

Answer:

Neil Armstrong.

Explanation:

. PLEASE GIVE BRAINLIEST.

The total internal energy U of a monoatomic ideal gas is given by:

Where n is the amount of substance, R is the universal gas constant and T is the temperature of the sample. The value of R is:

Replace n=1.3mol and T=315K to find the internal energy of the gas:

Therefore, the approximate total internal energy of the gas is 5100J. The correct choice is Option B.

David's investment strategy should reflect his financial goals, time horizon, and risk tolerance.

David is a 60-year-old individual with moderate financial health, meaning he has a stable financial situation but may have some debt or other financial obligations. He has a short time horizon, which suggests he may need his funds in the near future for retirement or other expenses.

He has a low risk tolerance, indicating that he is unwilling to take significant risks with his investments and may prefer safer, more conservative options. Based on these factors, David may want to consider investments that prioritize capital preservation, such as bonds or fixed-income securities. He may also want to work with a financial advisor to create a diversified portfolio that balances his need for stability with potential returns.

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Answer:

Explanation:

The formula for KE is

\(KE=\frac{1}{2}mv^2\) which makes solving our problem for velocity super easy. We will rewrite the formula in terms of v to get:

\(v=\sqrt{\frac{2KE}{m} }\) and filling in:

\(v=\sqrt{\frac{2(50)}{25} }\) so

v = 2 m/s to the correct number of sig fig's

We know that the energy stored in a parallel-plate capacitor can be expressed as:$$E=\frac{1}{2}CV^2$$where E is the energy in joules (J), C is the capacitance in farads (F), and V is the voltage across the plates in volts (V).Now we can find the electric field inside the capacitor.

Let E be the electric field strength, d be the plate separation, and A be the area of each plate. The capacitance C can be expressed as:

\($$C=\frac{\epsilon_0A}{d}$$\)

where ε0 is the permittivity of free space, which is approximately equal to 8.85 x 10-12 F/m.

Therefore, we have:

\($$C=\frac{\epsilon_0A}{d}$$\)

Rearranging this equation gives:

\($$A=\frac{Cd}{\epsilon_0}$$$$A=\frac{(10×10^{-6})×(12.5×10^{-3})}{8.85×10^{-12}}=1.418×10^{-2}m^2$$\)

Now we can find the electric field inside the capacitor. The potential difference V between the plates can be found using the energy stored in the capacitor. Therefore, we have:

\($$V=\sqrt{\frac{2E}{C}}$$$$V=\sqrt{\frac{2×(8×10^{-3})}{10×10^{-6}}}=\sqrt{16}=4V$$\)

The electric field strength E inside the capacitor can be expressed as:\($$E=\frac{V}{d}=\frac{4}{12.5×10^{-3}}=320V/m$$\)

Therefore, the answer is (B) 320 V/m.

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Answer:

c

Explanation:

An object's speed is the characteristic which is related to kinetic energy but not the potential energy. Thus, the correct option is C.

The kinetic energy of an object is the energy which it possesses due to the motion of the object. Kinetic energy is defined as the work which is needed to accelerate an object of a given mass from rest position to its stated velocity. Having gained this amount of energy during the acceleration of the object, the object maintains this kinetic energy unless its speed changes or it experiences acceleration.

Kinetic energy is directly proportional to the mass of the object and to the square of the velocity of the object, the expression is:

K.E. = 1/2 m × v²

where, KE = Kinetic energy,

m = mass of the object,

v = velocity of the object.

Therefore, the correct option is C.

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Answer:

Velocity of the car at the bottom of the slope: approximately \(20.3\; \rm m \cdot s^{-2}\).

It would take approximately \(3.9\; \rm s\) for the car to travel from the top of the slope to the bottom.

Explanation:

The time of the travel needs to be found. Hence, make use of the SUVAT equation that does not include time.

\(v^2 - u^2 = 2\, a\cdot x\).

Given:

Rearrange the equation \(v^2 - u^2 = 2\, a\cdot x\) and solve for \(v\):

\(\begin{aligned}v &= \sqrt{2\, a \cdot x + u^2} \\ &= \sqrt{2 \times 4.5\; \rm m \cdot s^{-2} \times 45\; \rm m + \left(3\; \rm m \cdot s^{-1}\right)^{2}} \\ &\approx 20.3\; \rm m \cdot s^{-1}\end{aligned}\).

Calculate the time required for reaching this speed from \(u = 3\; \rm m \cdot s^{-1}\) at \(a = 4.5\; \rm m \cdot s^{-2}\):

\(\begin{aligned}t &= \frac{v - u}{a} \\ &\approx \frac{20.3\; \rm m \cdot s^{-1} - 3\; \rm m \cdot s^{-1}}{4.5\; \rm m \cdot s^{-2}} \approx 3.9\; \rm m \cdot s^{-1}\end{aligned}\).

Option C, the chemical energy of the battery, decreases as current flows through the wire.

When a battery is connected to a wire, a potential difference is created between the positive and negative terminals of the battery. This potential difference drives the flow of electric current in the wire. As the current flows through the wire, the battery converts some of its stored chemical energy into electrical energy to sustain the flow of current. This conversion process causes a decrease in the chemical energy of the battery.

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When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through the bulb, we can calculate the resistance of the bulb using Ohm's Law. Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

To find the resistance, we can rearrange Ohm's Law equation (V = IR) to solve for R, where V is the voltage, I is the current, and R is the resistance.

First, let's plug in the given values:

V = 9.0 V (voltage)
I = 0.1 A (current)

Now, we can rearrange the equation to solve for R:

R = V / I

Substituting the given values:

R = 9.0 V / 0.1 A

Dividing 9.0 V by 0.1 A, we get:

R = 90 ohms

Therefore, the resistance of the bulb is 90 ohms.

In summary, when a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

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The image shows that the voltage affects the current and so does the resistance.

We know that the relationship between the voltage and the current can be obtained by the use of the Ohm's law. From the Ohm's law, we can see that;

V = IR

V = voltage

I = current

R = Resistance.

In this case, the resistance can be looked upon as the constnat of the proportionality. Based on the image, we can see that the current is related to the voltage and that the resistance also affects the current.

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Answer:

The heat doesn't come from any of those the heat comes from the Sun

Explanation:

But the thing that holds the heat from the Sun is the Earth's atmosphere.

When he gets hot the carbon dioxide holds in the heat but when the when oxygen it meets the heat in the air it makes it become cooler

The coil's induced emf is expressed as follows:

\($emf = -480 \pi H \cos (120 \pi t)$\)

Calculation-

\($emf = -L \frac{di}{dt}$\)

where L is the self-inductance of the coil, i is the current passing through the coil, and \($\frac{di}{dt}$\) is the rate of change of the current with respect to time.

Substituting the given values, we get:

\($i(t) = (2.0 A) \sin (120 \pi t)$\)

\($\frac{di}{dt} = (2.0 A) \times (120 \pi) \cos (120 \pi t)$$emf = -L \frac{di}{dt} = -2.0 H \times (2.0 A) \times (120 \pi) \cos (120 \pi t)$\)

Therefore, the expression for the emf induced in the coil is:

\($emf = -480 \pi H \cos (120 \pi t)$\)

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Answer:

It has low frequency and can travel through a vacuum

Explanation:

C.

Lambertian distribution describes the intensity distribution of radiation emitted by a planar LEDThe intensity distribution of the radiation emitted by a planar LED can be expressed by the Lambertian distribution.

This distribution is based on the assumption that the light source inside the semiconductor can be considered as a point source. In the Lambertian distribution, the intensity of the emitted light follows a cosine power law with respect to the emission angle. It states that the radiant intensity (I) of the emitted light is directly proportional to the cosine of the emission angle (θ) raised to a power (n): I(θ) ∝ cos^n(θ)
Here, θ is the angle between the direction of emission and the normal to the surface of the LED, and n is the emission factor which depends on the LED's characteristics.This cosine power law indicates that the intensity of light emitted from the LED is maximum normal to the surface (θ = 0°) and gradually decreases as the emission angle increases. The Lambertian distribution is a widely used model for characterizing the radiation pattern of LEDs, and it provides a good approximation for many practical applications.By assuming a point source and using the Lambertian distribution, the intensity distribution of the radiation emitted by a planar LED can be effectively described, helping in the design and analysis of lighting systems, displays, and optical communication devices.

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Answer:

11.1s

Explanation:

Given parameters:

Height of cliff  = 600m

Unknown:

How long it takes to hit the ground  = ?

Solution:

To solve this problem, we use one of the kinematics equation;

    H  = ut  +  \(\frac{1}{2}\)gt²  

H is the height

u is the initial velocity  = 0m/s

t is the time taken

g is the acceleration due to gravity

             600 = \(\frac{1}{2}\) x 9.8 x t²  

              600  = 4.9t²  

                 t²  = 122.5

                 t  = 11.1s

Figure 1= binary fission in amoeba

figure 2= budding in yeast

difference

1.Parent divides to form two daughter cells and itself gets disappeared in binary fission but in budding , a bud gets matured and detaches from the parent

From the law of conservation of momentum, the first egg did not break because it forward momentum is transferred to the cloth while the second egg broke, the block exerts an opposite force equal to the momentum of the egg on the egg.

Momentum is the product of the mass of an object and its velocity of motion.

The law of conservation of momentum states that the momentum of an isolated system of colliding bodies is conserved.

When an egg is thrown on a large sheet of cloth suspended, the egg does not break because the momentum of the egg is transferred to the cloth as it is depressed.

However, a second egg, thrown with similar force at a suspended concrete block, did break on impact because the block does not move forward, instead it exerts an equal but opposite force on the egg resulting in the egg breaking.

Therefore, from the law of conservation of momentum, the first egg did not break because it forward momentum is transferred to the cloth while the second egg broke, the block exerts an opposite force equal to the momentum of the egg on the egg.

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Electronic curvature refers to the curvature of the energy bands of electrons in a solid material.

In condensed matter physics, the behavior of electrons in a solid is often described in terms of energy bands, which are ranges of energy levels that electrons can occupy. The shape of these bands can be affected by the curvature of the underlying crystal lattice or by external influences, such as an applied electric or magnetic field.

The concept of electronic curvature is closely related to the concept of band structure, which describes the energy levels and wave functions of electrons in a solid material. Both of these concepts are important for understanding the electronic properties of materials and developing new materials with specific electronic and optical properties.

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The electron density of a conducting wire made of manganese can be calculated by multiplying the number of manganese atoms per unit volume by the number of free electrons per manganese atom.

To determine the electron density of a wire made of manganese, we need to know the number of manganese atoms per unit volume and the number of free electrons per manganese atom. The electron density is defined as the number of free electrons per unit volume of the material.

Assuming the wire is made entirely of manganese, we can calculate the number of manganese atoms per unit volume using the density of manganese, which is 7.43 g/cm³. This can be converted to atoms/cm³ using the atomic weight of manganese, which is 54.94 g/mol, and Avogadro's number.

Next, we need to know the number of free electrons per manganese atom, which is given as 3 in the problem statement. Finally, we can calculate the electron density by multiplying the number of manganese atoms per unit volume by the number of free electrons per manganese atom.

In summary, the electron density of a conducting wire made of manganese can be calculated by multiplying the number of manganese atoms per unit volume by the number of free electrons per manganese atom. This requires knowledge of the density of manganese and the number of free electrons per atom.

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Answer:

Conserve money means to save money. Conserve resources means the same thing but with resources; so conserve resources means to save resources.

Explanation: