Which of newton’s laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?.

Answer:

Energy conversion

Explanation:

We regularly use automobile which runs on the chemical energy of the fuels such as diesel and petrol, the chemical energy from the fuel would convert into the thermal energy which is used to drive the engine of the vehicle,further the thermal energy converted into the mechanical energy which is used to drive the prime mover of the automobile.

It can be defined as the form of the energy in which heat is transferred from one body to another body due to their molecular movements, thermal energy is also known as heat energy.

We frequently utilize vehicles that operate on chemical energy from fuels like diesel and gasoline.

This chemical energy is transformed into thermal energy, which drives the engine of the vehicle, and then mechanical energy, which drives the prime mover of the vehicle.

Thus, we can say that the transfers and transformations of energy are necessary to operate the technology.

Learn more about thermal energy from here, refer to the link;

brainly.com/question/3022807

#SPJ2

The total current in a circuit with a voltage of 120 volts across five parallel resistors (5, 14, 21, 25, and 100 ohms) is 25.56 Amperes.

To calculate the total current in the circuit, follow these steps:
1. Find the total resistance (R_total) for the parallel resistors using the formula:
1/R_total = 1/R1 + 1/R2 + 1/R3 + 1/R4 + 1/R5
1/R_total = 1/5 + 1/14 + 1/21 + 1/25 + 1/100
1/R_total ≈ 0.2 + 0.0714 + 0.0476 + 0.04 + 0.01
1/R_total ≈ 0.369
R_total ≈ 2.71 ohms
2. Use Ohm's Law to calculate the total current (I_total):
I_total = V_total / R_total
I_total = 120 volts / 2.71 ohms
I_total ≈ 25.56 Amperes
So, the total current in the circuit is approximately 25.56 Amperes.

Learn more about Ohm's Law here:

https://brainly.com/question/14796314

#SPJ11

Answer:

I'm really not that good at this but i think the answer is b

Explanation:

l'm really hoping this helped u

Heat transfer (in j) occurs from a system Q = - 156 J.

We use thermodynamics principles in this situation. There are already obtained relationships for intense properties like internal energy (U), heat transfer (Q), and work (W) that were based on differential equations. The formula is

ΔU = Q + W

But since these factors depend on their signs, we must remember to take them into account. Van Ness, Smith, and Abbott assert that declining has a negative sign convention. If work is being done ON the system, the sign is positive; however, if work is being done BY the system, the sign is negative. in this instance,

ΔU = - 200 J\sW = - 44 J

In that case, Q can be found.

-200 J = Q - 44 J

heat transfer (in j) occurs from a system Q = - 156 J.

To know more about  heat transfer visit;-

https://brainly.com/question/13433948

#SPJ4

Answer:

10 million joules or 10,000 KJ

Explanation:

Work= Force x Displacement

convert 5km into meters -5km=5000m

W= 2000N x 5000m

w=10,000,000 Joules

or 10,000KJ

Answer:

20kph

Explanation:

Since she travels 100kpm in 5 hours and 100 divided by 5 is 20 she would travel 20km in one hour

Answer:

0.777 s

Explanation:

Answer:

Some of the key characteristics of galaxies and galaxy clusters include their size, shape, and structure. Galaxies and galaxy clusters are also distinguished by the presence of dark matter, a mysterious substance that is thought to make up most of the mass in the universe. Additionally, galaxies and galaxy clusters are important sites for the formation and evolution of stars and other celestial objects.

Explanation:

Galaxies are vast collections of stars, gas, and dust that are held together by gravity. They come in a variety of shapes and sizes, ranging from small, irregular galaxies to large spiral galaxies with well-defined arms. Galaxies also contain a central region known as the nucleus, which may be home to a supermassive black hole.

Galaxy clusters are groups of galaxies that are held together by gravity. They are the largest structures in the universe, and they can contain hundreds or even thousands of individual galaxies. Galaxy clusters are typically separated by vast distances, and they are bound together by the mutual gravitational attraction of their constituent galaxies.

Electromagnetic radiation is a sort of energy emission. This has two components, electrical and magnetic components, as is clear from the name. The radiation is hence known as electromagnetic radiation. In Fig. 1.1, it is depicted. From a very low frequency of 3 Hz to a very high frequency of 300 EHz (1 EHz = 1018 Hz), this radiation has a wide frequency range. Table 1.1 lists the metric prefixes along with their symbols.

The magnetic and electric vectors are perpendicular to one another and to the path of propagation. In Fig. 1, this is depicted. 1. Depending on the frequency, this electromagnetic spectrum is separated into different section

 Wavelength and Frequency Relationship

Wavelength

According , a wavelength is the separation between two crests or troughs. It is described in the "electronic spectrum" in terms of nm. 1 nm = 10−9 m. Radiation's energy and wavelength are inversely related. In other words, energy increases when the wavelength lowers and decreases when the wavelength grows.

In the IR spectrum, wavenumber, which has the SI value of cm1, is used in place of or v.

 The relationship between frequency and wavelength

where is the wavenumber, is the wavelength, c is the speed of light, and is the frequency of the radiation.

To know more about wavelength, click the link below;

https://brainly.com/question/4112024

#SPJ4

Answer:

(B)   hot air is lighter than cold air

P V = N R T       ideal gas equation

If T (temperature) is smaller then N (number of moles) must be larger if other quantities remain constant,

Answer:

Explanation:

First, remember your age.

Then, multiply it times 365 x 24 x 60 x 60.

Or basically, multiply it times 315.36 x 10⁵

Answer:

a.2.5 m/s

b.2.27 m/s

c.2.385 m/s

Explanation:

velocity=displacement/time

a.50/20=2.5 m/s

b.50/22=2.27 m/s

c.average velocity=total velocity/2

=2.27+2.5/2

=4.77/2

=2.385 m/s

The normal force exerted upon Aquaman by the seafloor is equal to his weight. In other words, the normal force is the force exerted by a surface to support the weight of an object resting on it.

When Aquaman rests on the bottom of the sea, the normal force acts perpendicular to the seafloor and counterbalances his weight. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. The seafloor exerts an upward force, known as the normal force, to balance the downward force of Aquaman's weight.

In this case, since Aquaman is at rest, the normal force must be equal in magnitude and opposite in direction to his weight. The weight of an object is given by the equation W = mg, where W is the weight, m is the mass of the object, and g is the acceleration due to gravity.

Therefore, the normal force exerted upon Aquaman by the seafloor is equal to his weight, which is determined by his mass and the acceleration due to gravity in that location.

learn more about aquaman here:brainly.com/question/15603105

#SPJ11

Answer:

Explanation:

Hope this helps!

Answer:

a. constructive interference

Explanation:

100% correct

In order to replace the 700-N force P applied at point A, we can use two equivalent systems.

(a) For the first system, we can create an equivalent force-couple system at point C. This means applying a force of 700 N at point C in the opposite direction of the original force P, along with a couple moment. The magnitude of the couple moment would be 700 N multiplied by the perpendicular distance between points A and C.

(b) For the second system, we can replace the force P with a vertical force at point B and a second force at point D. The magnitude of the vertical force at B would be equal to 700 N, and the second force at D would have the same magnitude but in the opposite direction. These forces at B and D should be positioned in a way that the net effect is equivalent to the original force P at point A.

By using either the force-couple system at point C or the system with vertical forces at points B and D, we can achieve the same overall effect as the original force P at point A.

Learn more about force-couple system

brainly.com/question/30727106

#SPJ11

Answer:

the answer is 3600 kilometers

Answer:

25 joules

Explanation:

Not sure I understood correctly but since 15 are taken up by mechanical energy and 10 are taken in by electrical, 50-10-15 would result in 25 joules which must belong to heat energy

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

Any online is a platform that allows students to access lecture notes, textbook solutions, and other study materials uploaded by other students. It does not have anything to do with predicting the decay time for a nucleus or observing patterns in nuclear decay.

However, in terms of nuclear decay, there are some patterns that can be observed. For example, the half-life of a radioactive substance is constant, regardless of the amount of material present. This means that the amount of material that remains after one half-life is always half of the original amount.

Watching what happens in the bottom-half of the display can provide information about the decay of a nucleus. The bottom-half of a decay curve represents the amount of material remaining over time. As time passes, the amount of material decreases exponentially. The half-life can be calculated from the decay curve by finding the time at which half of the material has decayed.

Learn more about nuclear Visit : brainly.com/question/15214614

#SPJ11

The maximum current in the inductor is approximately 1.21 amperes when a 5.05 μF capacitor initially charged to 15.2 V is connected in series with a 3.75 mH inductor.

To determine the maximum current in the inductor when a 5.05 μF capacitor initially charged to a potential of 15.2 V is connected in series with a 3.75 mH inductor, we can use the formula for the resonant frequency of an LC circuit.

The resonant frequency (fr) of an LC circuit is given by:

fr = 1 / (2π√(LC))

Given:

C = 5.05 μF = 5.05 × \(10^{-6}\)F

L = 3.75 mH = 3.75 × \(10^{-3}\) H

Plugging the values into the formula:

fr = 1 / (2π√(5.05 × \(10^{-6}\) × 3.75 × \(10^{-3}\)))

  = 1 / (2π√(1.89125 ×\(10^{-8}\)))

  ≈ 530,012 Hz

The maximum current (Imax) in the inductor can be calculated using the formula:

Imax = V / Xl

Where:

V is the initial potential (voltage) across the capacitor (15.2 V), and

Xl is the inductive reactance.

The inductive reactance (Xl) is given by:

Xl = 2πfL

Plugging the values into the formula:

Xl = 2π(530,012)(3.75 × \(10^{-3}\))

  ≈ 12.556 Ω

Plugging the values into the formula for Imax:

Imax = 15.2 V / 12.556 Ω  ≈ 1.21 A

Therefore, the maximum current in the inductor is approximately 1.21 amperes.

Learn  more about maximum current

brainly.com/question/30264835

#SPJ11

Answer:

15m

Explanation:

change in real depth = 80 - 60 = 20m

Let us assume that the index is 4/3

Refractive index = change in real depth ÷ change in apparent depth

change in apparent depth = change in real depth÷ refractive index

= 20÷(4/3) = 20×(3/4) = 5×3 = 15m

The final speed of the motorcycle is: 67 m/sec

Velocity is the pace and direction of an item's movement, whereas speed is the time rate at which an object is travelling along a route. In other words, although velocity is a vector, speed is a scalar quantity.

Given that,

initial speed of the motorcycle, u=25 m/sec

Acceleration of the motorcycle, a = 7 m/sec²

According to the equation of motion,

v = u + at

v = 25 m/sec + (7m/sec²) × (6 sec)

v = 67 m/sec

Thus, final speed of the motorcycle is: 67 m/sec

To know more about speed refer to:

https://brainly.com/question/13943409

#SPJ1

Answer:

Bacteria

Explanation:

UV kills bacteria and its 8 letters

Explanation:

Given:

v₀ = 0 m/s

a = 3 m/s²

t = 4 s

Find: Δx and v

Δx = v₀ t + ½ at²

Δx = (0 m/s) (4 s) + ½ (3 m/s²) (4 s)²

Δx = 24 m

v = at + v₀

v = (3 m/s²) (4 s) + 0 m/s

v = 12 m/s

The correct statements from the list are:

Gravity causes molecular clouds to contract.

Gas will heat up as it collapses.

Stars are born from the gas and dust of the interstellar medium.

Explanation:

Molecular clouds are massive structures of gas and dust that are gravitationally bound. Gravity is the force that causes the contraction of the cloud, leading to the formation of stars.

As the molecular cloud contracts due to gravity, the gas and dust particles collide with each other and lose potential energy, which gets converted into heat. This heating process increases the temperature of the cloud and can lead to the formation of a protostar.

Stars are born from the gas and dust of the interstellar medium through the process of gravitational collapse. As the molecular cloud collapses, it forms a protostar that eventually becomes a star.

Protostars are not observable at visible wavelengths because they are embedded in dense clouds of gas and dust. However, they can be detected at infrared wavelengths, where the heat radiation from the protostar and its surrounding disk is more prominent.

The process of star formation is a continuous process that can take millions of years. There is ample evidence to support this idea, including the observation of protostars, young stars, and star clusters at various stages of evolution.

Most protostars can be detected by the jets of gas they emit, known as bipolar outflows. These outflows are generated by the accretion of material onto the protostar, which creates a high-velocity stream of gas that is ejected from the star's poles.

For more questions like stars visit the link below:

https://brainly.com/question/31237103

#SPJ11

The velocity of sound in air is 50 m/s.

To calculate the velocity of sound in air, we can use the formula:

v = f * λ

Where:

v is the velocity of sound

f is the frequency of the sound wave

λ is the wavelength of the sound wave

In this case, the first resonance occurs when the length of the glass tube is a quarter of the wavelength. So, for the first resonance:

λ₁ = 4 * L₁

Where:

λ₁ is the wavelength at the first resonance

L₁ is the length of the tube

Given that L₁ = 30 cm, we can calculate the wavelength at the first resonance:

λ₁ = 4 * 30 cm = 120 cm

Now, when the water level is 25 cm below the open end, the effective length of the tube becomes L₂ = L₁ - 25 cm = 5 cm.

To find the wavelength at the next resonance, we can use the formula:

λ₂ = 4 * L₂

λ₂ = 4 * 5 cm = 20 cm

Since the frequency remains the same (250 Hz), we can now calculate the velocity of sound using the equation v = f * λ:

v = 250 Hz * 20 cm = 5000 cm/s = 50 m/s

For such more questions on velocity

https://brainly.com/question/29396365

#SPJ11

Answer:

C) 9.4 m/s

Explanation:

\(m_1\) = Mass of moving car = 1200 kg

\(u_1\) = Initial velocity of moving car = 21.1 m/s

\(m_2\) = Mass of stationary car = 1500 kg

\(u_2\) = Initial velocity of stationary car = 0

v = Velocity of the combined cars

As the momentum in the system is conserved we have

\(m_1u_1+m_2u_2=(m_1+m_2)v\\\Rightarrow v=\dfrac{m_1u_1+m_2u_2}{m_1+m_2}\\\Rightarrow v=\dfrac{1200\times 21.1+1500\times0}{1200+1500}\\\Rightarrow v=9.378\approx 9.4\ \text{m/s}\)

The velocity of the combined mass is 9.4 m/s.

Answer:

Explanation:

Force of friction acting on the crate = μ mg

= .4 x 100 x 9.8 = 392 N

Net force acting on the crate = 400 -392 N = 8 N .

acceleration = net force / mass

= 8 N / 100 kg

= .08 m /s²

velocity after 3 s.

v = u + at

= 0 + .08 x 3

= 0.24 m/s .

The orbital notation that correctly represents the outermost principal energy level of oxygen in the ground state is:

↑↓; ↑↓; ↑; ↑.

This notation indicates that there are two electrons in the 2p sublevel, one electron in the 2s sublevel, and one electron in the 1s sublevel, which is the outermost principal energy level (valence shell) of oxygen in its ground state.

The arrows indicate the spin of each electron, with ↑ representing spin-up and ↓ representing spin-down.

Learn more about orbital notation from :

https://brainly.com/question/26000020

#SPJ11