How to find Vdsq from Vdst? How did they find the value of 7 for Vdsq?

Answer:

Alpha decay forms new element with two fewer protons and two fewer neutrons, Beta decay forms new element with one more proton and one fewer neutron. Gamma decay forms NO new element, but now the element has less energy because energy is released as gamma rays.

Explanation:

ANSWER AND EXPLAINATION:
Gamma decay differs from alpha and beta decay in several ways:

1. Particle emitted: In gamma decay, no particles are emitted. Instead, a high-energy photon called a gamma ray is released. Alpha decay involves the emission of an alpha particle, which consists of two protons and two neutrons. Beta decay involves the emission of either a beta-minus particle (an electron) or a beta-plus particle (a positron).

2. Mass and charge: Gamma decay does not change the mass or atomic number of the nucleus since no particles are emitted. Alpha decay reduces the atomic number by 2 and the mass number by 4, as an alpha particle is emitted. Beta decay changes the atomic number, with beta-minus decay increasing it by 1 and beta-plus decay decreasing it by 1. The mass number remains the same in beta decay.

3. Penetrating power: Gamma rays have the highest penetrating power among the three types of decay. They can pass through most materials and require dense shielding (e.g., lead or concrete) to attenuate them. Alpha particles have low penetrating power and can be stopped by a sheet of paper or a few centimeters of air. Beta particles have intermediate penetrating power and can be stopped by a few millimeters of aluminum.

4. Energy release: Gamma decay releases energy in the form of high-energy photons. Alpha decay releases a significant amount of energy since an alpha particle carries substantial kinetic energy. Beta decay releases energy in the form of the kinetic energy of the emitted beta particle.

gamma decay is a process that involves the emission of high-energy photons, while alpha and beta decay involve the emission of particles with mass and charge. Gamma rays have higher penetrating power and do not cause changes in the mass or atomic number of the nucleus, distinguishing them from alpha and beta particles.

White dwarf supernovae are used. Type Ia supernovae are regarded as "standard candles," enabling astronomers to determine the precise distance from Earth of the explosions.

Astronomers rely on the exploding stars known as supernovae to detect more distant galaxies. Cepheids, the pace of brightening and fading of a certain type of supernovae exposes their true brightness, which can be used to determine their distance.

The main distance markers in the galaxy and the local group are cepheid variable stars and their relatives, the RR Lyrae stars. They pulse radially with an inversely proportionated period (essentially at the speed of sound in the star's envelope).

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Answer:

Compound 'A' C5H12 does not react with phenyl hydrazine. Oxidation of 'A' with K2Cr2o7,/H" gives B' (c5H10o). Compound 'B' reacts with phenyl hydrazine but does not give Tollen's test. The

Answer: 45.4249

Explanation: 12 gallons converted to liters = 45.4249 liters

Answer:45.42

Explanation:

1 Gallon = 3.785 liters

3.785 × 12 = 45.42

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If the distance between two objects decreased, the force of gravity will increase

This states that the force of attraction between two objects is directly proportional to the product of their masses and inversely proportional to the square of their distance apart.

Mathemaically, it is expressed as:

F = GM₁M₂ / r²

Where

F = GM₁M₂ / r²

From the above equation, we can see that force (F) is inversely proportional to the distance (r).

Thus, if the distance between the objects decrease, the force will increase.

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The kangaroo's horizontal speed will be 9.7 m/s and its departure speed will indeed be 10.65 m/s.

By observing the pace at which this compressed region moves through the medium, we may determine the sound speed. The sound wave travels at a speed of around 343 meters per second in low humidity at 20 degrees Celsius.

The following equation relates the distance to the direction and initial velocity:

d = [v₀²sin2θ]/g, where θ – the angle of the jump.

Thus, v₀² = gd / (sin2θ) = (9.8×8)/0.69 = 113.62

v₀ = 10.65 m/s ( the take off speed).

The horizontal velocity equals:

vₓ = v₀cos 22° = 10.65 m/s × 0.92 = 9.7 m/s

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Answer:

Check explanation

Explanation:

Gold - Au (Aurum)

Mercury - Hg (Hydrargyrum)

Copper - Cu (Cuprum)

Iron - Fe (Ferrum)

Lead - Pb (Plumbum)

These elements in the periodic table are some of the elements represented by letters not in line with their names.

This is because, these elements were known in ancient times and therefore, they are represented by letters from their ancient names.

Answer:

Mix

Explanation:

A battery has two electrodes, at one end it has the anode and the other end has the cathode. Electrons travel through the circuit from the anode (negative) to the cathode (positive), and this is the driving force that provides electricity to flow through circuits.

The anode needs to have a low electron affinity because it needs to readily release electrons, and the cathode needs to have a high electron affinity because it needs to readily accept electrons.

Answer:

Give up.

Explanation:

Physics is horrible.

And that's the cold hard truth. :(

So, the work required to lift the piano is 36 kJ from the ground.

An item needs to receive energy in order to move. Force is one way that energy may be transferred. Work or work done refers to the quantity of energy used by a force to move an item.

Transferring energy into an item to cause some displacement is what is referred to as work. The ability to perform tasks is referred to as energy. The work is consistently the same. Kinetic and potential energy are two examples of the various forms of energy.

The quantity of internal and mechanical energy that things contain fluctuates as a result of work. Energy is contributed to a system or an item when work is done on it. When a system or thing performs labour,

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Answer:

Speed of the satellite V = 6.991 × 10³ m/s

Explanation:

Given:

Force F = 3,000N

Mass of  satellite m = 500 kg

Mass of earth M = 5.97 × 10²⁴

Gravitational force G = 6.67 × 10⁻¹¹

Find:

Speed of the satellite.

Computation:

Radius r = √[GMm / F]

Radius r = √[(6.67 × 10⁻¹¹ )(5.97 × 10²⁴)(500) / (3,000)

Radius r = 8.146 × 10⁶ m

Speed of the satellite V = √rF / m

Speed of the satellite V = √(8.146 × 10⁶)(3,000) / 500

Speed of the satellite V = 6.991 × 10³ m/s

Answer:

4

Explanation:

The key function of the hormonal secretions that accompany an emotion is to prepare the body for the appropriate response is stimulation of defecation.

When an individual experiences an emotion, such as fear or anxiety, the body prepares for the fight or flight response. This response involves an increase in heart rate, respiration, and blood pressure. In addition, hormones such as adrenaline and cortisol are released to help prepare the body for the appropriate response. Adrenaline increases blood flow to the muscles and increases the breakdown of glycogen to provide energy for the body. Cortisol increases blood glucose levels and decreases inflammation.

In some cases, emotions may also stimulate defecation. This is because the body wants to eliminate any unnecessary weight or distractions so that it can focus on the situation at hand. This is why individuals may experience "butterflies in their stomach" or have the urge to go to the bathroom when they are nervous or anxious.

In summary, the key function of hormonal secretions that accompany an emotion is to prepare the body for the appropriate response. This includes an increase in heart rate, respiration, and blood pressure, as well as the release of hormones such as adrenaline and cortisol. In some cases, emotions may also stimulate defecation to eliminate unnecessary distractions.

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Answer:

any characteristic of matter that can be observed without changing the identity of the material. Scientists call a characteristic of matter that you can detect with your senses a Physical property. color, shape, smell, taste, mass, volume, and density.

Explanation:

Answer:

Hello...

Explanation:

a)i)Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle.

ii)The critical angle is the angle of incidence where the angle of refraction is 90°. The light must travel from an optically more dense medium to an optically less dense medium. Figure 5.15: When the angle of incidence is equal to the critical angle, the angle of refraction is equal to 90°.

b)Two Requirements for Total Internal Reflection

The light is in the more dense medium and approaching the less dense medium. the angle of incidence is greater than the so-called critical angle.

c)The phenomenon of total internal reflection of light is used in many optical instruments like telescopes, microscopes, binoculars, spectroscopes, periscopes etc. The brilliance of a diamond is due to total internal reflection. Optical fibre works on the principle of total internal reflection.

d)There are no units for the index of refraction, because it is merely a ratio. When you use the formula n=cv , the units for c and v cancel each other out, because they are both measured in m/s, leaving no units.

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Then the two conditions necessary for the vertical distance equation are given by Newton's first law and second law.

The law of balance is part of Newton's first law of motion. Everything has a tendency to hold onto its equilibrium or resting state until it is disturbed by an outside force, according to Newton's first law. A state of equilibrium is one in which a body is constant. The body is subject to net zero force.

If the system is in equilibrium, then by Newton's first law, the equation is given as,

∑F = 0

And by Newton's third law, the equation is given as,

F₁₂ = - F₂₁

Then, Newton's first rule and second law provide the two conditions required for the actual output equation.

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Explanation:

So,

speed = wavelength x frequency

speed = 2.3 meters x 5 Hz => 11.5 meters per second

Therefore, the speed of the wave is 11.5 meters per second.

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Answer:

(a)  333.77 J

(b) 237.85 J

(c) 4763.77 J

(d) 4667.85 J

Explanation:

Temperature of source, TH = 314 K

Temperature of A, Tc = 292 K

Temperature of B, Tc' = 298 K

heat taken out, Qc = 4430 J

Let the heat deposited outside is QH and QH' by A and B respectively.

\(\frac{Q_H}{Q_c}=\frac{T_H}{T_c}\\\\Q_H = \frac{4430\times314}{292}=4763.77 J\)

Now

\(\frac{Q_H'}{Q_c}=\frac{T_H}{T_c'}\\\\Q_H' = \frac{4430\times314}{298}=4667.85 J\)

(a) Work done for A

W = QH - QC = 4763.77 - 4430 = 333.77 J

(b) Work done for B

W' = QH' - Qc = 4667.85 - 4430 = 237.85 J

(c) QH = 4763.77 J

(d) QH' = 4667.85 J

The amount of work that can be done by a 30.0 gram bullet traveling at 200 m/s is 600 J

The amount of work can be calculated using the formula for kinetic energy:

KE = 1/2 m v ^2 , where :

KE is the kinetic energy

m is the bullet's mass, and

v is the bullet's velocity.

Kinetic energy is the energy that an object has as a result of motion. It is described as the effort required to move a mass-determined body from rest to the indicated velocity.

Values :

m = 30 gram = 0.030 kg

v = 200 m/s

Plugging in the given values:

KE = 1/2(0.030 kg)(200 m/s)^2

KE = 600 J

Therefore, the amount of work that can be done by the bullet is 600 J.

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Based on the diagram in fig. 26955 (similar to fig. 26912, example 2698), the potential difference between points a and d can be found by summing the potential differences across each component in the circuit that lies between these two points.

Starting from point a, we first encounter a resistor with a resistance of R1. The potential difference across this resistor can be found using Ohm's law: V1 = I * R1, where I is the current flowing through the resistor.

Next, we come across a battery with an emf of E1. Since we are moving from the negative terminal to the positive terminal of the battery, the potential difference across the battery is E1.

Moving further along the circuit, we come across another resistor with a resistance of R2. Using Ohm's law again, the potential difference across this resistor is V2 = I * R2.

Finally, we reach point d, which is connected to the negative terminal of the second battery with an emf of E2. Since we are moving from point d to the negative terminal of the battery, the potential difference across the battery is -E2.

Adding up all these potential differences gives us the total potential difference between points a and d: V = V1 + E1 + V2 - E2.

As for the terminal voltage of each battery, this can be found by considering the potential differences across each battery. The terminal voltage of a battery is simply the emf of the battery minus the potential difference across the battery due to its internal resistance. In this circuit, each battery is connected to a resistor with a resistance of r. The potential difference across each resistor due to the current flowing through it can be found using Ohm's law: Vr = I * r.

Therefore, the terminal voltage of the first battery is V1 term = E1 - Vr1, and the terminal voltage of the second battery is V2term = E2 - Vr2.

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Answer:

A) 1.53s

B) 19.8m

C) 2.869m

Explanation:

A) The time of flight for a projectile can be calculated using the formula:

t = 2μsinθ/g

Where; u = velocity

θ = angle

g = acceleration due to gravity (9.8m/s^2)

t = 2 × 15 × sin 30°/9.8

t = 30sin30°/9.8

t = 30 × 0.5/9.8

t = 15/9.8

t = 1.53s

B) The horizontal range (distance) for a projectile can be calculated using the formula:

Range = u²sin2θ/ g

Range = 15² sin 2 × 30 / 9.8

Range = 225 sin 60/9.8

Range = 225 × 0.8660/9.8

Range = 194.855/9.8

Range = 19.8m

C) The maximum height for a projectile can be calculated using the formula:

h = u²sin²θ/2g

h = 15² (sin 30)² / 2 × 9.8

h = 225 × 0.25 / 19.6

h = 56.25/19.6

h = 2.869m

​

Answer:

Work

Explanation:

The amount of work you put into the activities can affect different amounts of power. Since power is work/time and work is force/displacement, it depends on the amount of work you put into it to alter the power.

Sowwy if my explanation is wack :C

The magnitude of the acceleration of the 6.00 kg mass is 9.8 m/s². The correct answer is D. The tension in the cable is 58.8 N (answer E).

1. The magnitude of the acceleration of the 6.00 kg mass can be determined by considering the forces acting on the system. Since there is no friction and the pulley has no mass, the tension in the string is the same on both sides.

The force due to gravity acting on the 2.00 kg mass is given by F₁ = m₁g = (2.00 kg)(9.8 m/s²) = 19.6 N, where g is the acceleration due to gravity.

The net force on the system is equal to the product of the mass and acceleration of the 6.00 kg mass, F_net = m₂a, where m₂ = 6.00 kg. The tension in the string can be expressed as T = F_net + F₁.

By substituting the known values into the equation, we have 6.00 kg * a = 6.00 kg * (9.8 m/s²) + 19.6 N. Simplifying this equation yields a = 9.8 m/s².

Therefore, the magnitude of the acceleration of the 6.00 kg mass is 9.8 m/s². The correct answer is D.

2. The magnitude of the tension in the cable can be determined by analyzing the forces acting on the masses. Since the system is assumed to be frictionless and the pulley has no mass, the tension in the string is constant throughout.
The tension in the string can be found by examining the forces acting on the masses. In this case, the tension in the string is equal to the force required to accelerate the 6.00 kg mass.

From the previous calculation, we know that the acceleration of the 6.00 kg mass is 9.8 m/s². Using Newton's second law (F = ma), the force required to accelerate the 6.00 kg mass is F = (6.00 kg)(9.8 m/s²) = 58.8 N.

Therefore, the magnitude of the tension in the cable is 58.8 N. The correct answer is E (other), as it depends on the available options provided in the question.

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If both masses double in size and their separation between them triples. 13..33 N will be the force between the masses.

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.

Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.

Given data:

The gravitational force = 30 N

Mass 1 =m₁

Mass 2=m₂

Distance between charges = R

Condition given:

Mass 1 = 2m₁

Mass 2= 2m₂

Distance  between charges = 3R

\(\rm F = \frac{Gm_1m_2}{R^2}\)

Case 2;

\(\rm F'=\frac{G(2m_1)(2m_2)}{(3R)^2} \\\\ F'=\frac{4}{9} \frac{Gm_1m_2}{R^2} \\\\ F'=\frac{4}{9} F \\\\ F'=\frac{4}{9} \times 30 \\\\ F'=13.33 \ N\)

Hence, the forces between the masses will be 13..33 N.

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Answer: Autotrophs

Explanation: Autotrophs make their own food from nature. They do not depend on other creatures for food

Answer:

(a) 217 Ra          (b)     29 P

      84                          16

Explanation

(a) 221 Rn ---------------> 4 He + 217 Ra

      86                           2             84

    the mass number is reduced by 4 while the atomic number is reduced               by 2 since an alpha particle is emitted

(b) 29 P ------------------> 0 e + 29 P

       15                          -1         16

     the mass number remains the same while the atomic number is reduced by -1 since a beta particle is emitted

WLANs are commonly found in the frequency range of 2.4 GHz and 5 GHz.

Wireless Local Area Network (WLAN) refers to a wireless computer network, typically within a building or small group of buildings.

It uses radio waves to transmit and receive data over distances of a few hundred feet to several miles and uses a router or other wireless access point to connect computers to the network.

The most common frequency ranges used by WLANS are 2.4 GHz and 5 GHz.

In which frequency range are you likely to find WLANs?.

Wireless Local Area Network (WLAN) is usually found in the frequency range of 2.4 GHz and 5 GHz.

It is a wireless computer network that works over a few hundred feet to several miles using radio waves to transmit and receive data. The connection between computers and the network is established using a router or other wireless access points.

WLANs are commonly found in the frequency range of 2.4 GHz and 5 GHz. They are wireless computer networks that use radio waves to transmit and receive data over distances of a few hundred feet to several miles.

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