Cesium has 37 isotopes, the most of any element on the periodic table. One of Cesium's most stable isotopes undergoes beta decay to form Barium-135. Which of the following is the correct isotopic notation for the original Cesium isotope before it decayed?

The rest energy of the proton will be 938 MeV. The rest energy is related to the rest mass of the proton.

The rest energy is the rest mass times the square of the speed of light of a particle at rest in an inertial frame of reference.

The rest energy is found as;

[tex]\rm E_R= mC^2\\\\ E_R=(1.67 \times 10^{-27})\times 3 \times 10^8)^2\\\\ E_R= 9.375 \times 10^8 / eV[/tex]

Convert into the mega electron volt;

[tex]\rm E_R= 938 \ MeV[/tex]

Hence, the rest energy of the proton will be 938 MeV

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Answer:

[tex]3 m/s^{2}[/tex]

Explanation:

ΣF=ma

The two forces at play are the force applied and the force due to friction. As they are opposing forces set the direction being pushed as the positive in the x direction. the equation you come out with is 60 - 15=(15)A (we know mass to be 15kg). Solve for 3 m/s^2.

Answer:

An ellipse with the Sun at one of the foci of the ellipse

Explanation:

Planets have elliptical orbits

Answer:

165.5

Explanation:

vrms × root 2= v max

Hence we get v maximum =165.5 V

Answer:

blizzard

Explanation:

A blizzard is a severe snowstorm characterized by strong sustained winds and low visibility

Answer:

Those common things which they both have are:i) They both start off with fusing hydrogen into helium.and ii) They both generate their energy by the process called nuclear fusion.((hope it is useful for u all))

Answer:

16 velocity

Explanation:

Answer:

No, some energy will be dissipated energy due to work of air resistance.

Answer:

Impulse-The effect of force acting over time to change the momentum of an object.

momentum-The product of mass of a particle and its velocity.

The force of the tripped catch exerted on the 2.5 Kg ball moving at 8.5 m/s to the Left is 160 N

The force exerted on the ball can be obtained as follow:

F = m(v + u) / t

F = [2.5(7.5 + 8.5)]/ 0.25

F = 40 / 0.25

F = 160 N

Thus, the force exerted on the ball is 160 N

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Step 2 does the robotic arm do work on the block. Joshua programs a robotic arm to place a block in a box. a four-row, two-column table.

A robotic arm is a type of artificial arm that may be programmed to do tasks similar to those of a human arm.

The arm can be the sum of the mechanism or part of a larger robot. Joints connect the manipulator's linkages, allowing rotational or translational motion.

By following the directions in the table, Joshua programs a robotic arm to place a block in a box. a four-row, two-column table.

The items in the first column labeled step are 1, 2, 3, and 4. Grip block, elevate block 10 cm, hold for 20 seconds, release block are the items in the second column labeled command.

Step 2 does the robotic arm do work on the block.

Hence,step 2 is the correct answer.

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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

Answer:

Positive and Negative, commonly carried by charge carriers protons and electrons. Examples of the types of charges are subatomic particles or the particles of matter: Protons are positively charged. Electrons are negatively charged.

Explanation: ;)

electrostatic charge and symbolized q, is a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.

Answer:

the answer is E-F

Explanation:

why is because the others are lines but E-F is curve

Answer:

look at the explanation

Explanation:

the first one, 4th one and 6th one will go into repulsion and the others will go into attractive (hope this helps and Goodluck on any other questions)

Answer:

35 to 52 minutes

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As a proton moves in the direction of the electric field lines,  it is moving from low to high potential and gains electric potential energy.

The imaginary lines are of an electric field such that the tangent drawn to it points in the direction of electrostatic force.

When a proton is moving along the electric field lines, it is gaining energy.

Thus, when a proton moves in the direction of the electric field lines, it is moving from low to high potential and gaining electric potential energy.

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Answer:

Option 4

Explanation:

The difference between the Paleozoic and Mesozoic Era is that animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic Era.

The Paleozoic is the first part of the Phanerozoic Era, and is followed by the Mesozoic Era, which is the second part.

The difference between the Paleozoic and Mesozoic eras is "Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era." The correct option is D.

The Paleozoic era and Mesozoic era are two major divisions of geological time.

The Paleozoic era, also known as the "age of invertebrates," spanned from about 541 million years ago to about 252 million years ago. During this era, the first multicellular organisms evolved, and there was a rapid diversification of life forms. This era saw the rise of fish, amphibians, and reptiles, as well as the first forests and the development of early land plants. The Paleozoic era ended with a mass extinction event that wiped out about 90% of all marine species and nearly 70% of all land species.

The Mesozoic era, also known as the "age of dinosaurs," spanned from about 252 million years ago to about 66 million years ago. During this era, reptiles continued to dominate the land, and dinosaurs evolved and became the dominant terrestrial animals. This era also saw the rise of birds, the evolution of flowering plants, and the emergence of mammals. The Mesozoic era ended with a mass extinction event that wiped out the non-avian dinosaurs, as well as many other species of plants and animals.

Here in the Question,

Option A, "Animals lived in the water during the Mesozoic and on land in the Paleozoic," is not a correct difference between the two eras. In fact, animals lived both in the water and on land during both the Paleozoic and Mesozoic eras. The Mesozoic era is famous for the rise of the dinosaurs, which were primarily land-dwelling animals, while the Paleozoic era saw the rise of amphibians and the first land-dwelling vertebrates.

Option B, "The first birds emerged in the Paleozoic era while mammals first emerged in the Mesozoic," is also not a correct difference between the two eras. In fact, birds did not emerge until the Jurassic period of the Mesozoic era, while the first mammals are believed to have emerged during the late Triassic period.

Option C, "Many different species of dinosaurs lived in the Mesozoic, but they all died off in the Paleozoic," is not correct either. Dinosaurs first appeared during the Mesozoic era and dominated the terrestrial ecosystem for more than 150 million years before they went extinct at the end of the Cretaceous period. The Paleozoic era ended more than 100 million years before the first dinosaurs appeared.

Therefore, The correct option is D. Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era.

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Answer / Explanation:

B

Potential difference is measured using a device called a voltmeter . Just like ammeters, some types have a pointer on a dial, but most have a digital display. However, unlike an ammeter, you must connect the voltmeter in parallel to measure the potential difference across a component in a circuit.

Answer:

It is pulled up on the left side. took the test

Explanation:

Answer:

Water power, eg tidal and hydroelectricity , is reliable and predictable because of the Moon causing the tides and rainfall filling reservoirs. They can also be used to supply additional demand.

Explanation:

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Answer:

it is A fffgfhdshhsdsggsgssggsdggedgdgegggeeegeegegehe

The wavelength of the water wave having a amplitude of 1.2 meters every 0.4 seconds is 1.8 m .

Wavelength is the total distance traveled by a wave in one cycle.

To calculate the wavelength of the wave, we use the formula connecting

speed, wavelength, and Period.

Formula:

Where:

Make λ the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, The wavelength of the water wave having a amplitude of 1.2 meters every 0.4 seconds is 1.8 m .

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The downward force of air on top of the wings decreases. The net lifting force of the air on the wings increase. A passenger jet in the air increases its speed.

The increasing order for the first ionization energy has been:

< C < N < O.

The first ionization energy has been the amount of energy required for removing the electron from the gaseous state. The molecules that have small structures and available valence electrons, the ionization energy has been decreased.

In the periodic table, on moving from left to right there has been an increase in the size of the atom, as well as the valence electrons. The increase in size results in more attraction by the nucleus resulting in increased first ionization energy.

The increasing order for the first ionization energy has been:

C < N < O.

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The potential energy of a barbell is increased when it is lifted by the weight lifter and work is done on the barbell.

Energy is the ability to do work. We must note that the weightlifter does work in a gravitational field.

Hence, the potential energy of a barbell is increased when it is lifted by the weight lifter and work is done on the barbell.

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