Two stones of different weight falls at the same time from the table. Air resistance may be ignored. What will happen and why?

Answer: C. 20.25J

Explanation: KE = 1/2 m v^2

m= .005, v= 90

1/2 * .005 * 90^2 =  20.25J

Answer:

With the help of formula.

Explanation:

We can calculate the electric potential of any point through the formula of electric potential which is given below.

Electric potential =  Coulomb constant x charge/ distance of separation.

Symbolically it can be written as,  V = k q/ r where

V = electric potential  

k = Coulomb constant

q = charge

r = distance of separation

If we have all these data, we can simply put the data in the formula and we will get the value of electric potential.

Answer:

Its C

Thank me later

Now bye

Impulse in Physics is a term that is used to describe or quantify the effect of force acting over time to change the momentum of an object. It is represented by the symbol J and usually expressed in Newton-seconds or kg m/s.

A car's bumper is designed to withstand a 4.32 km/h (1.2 m/s) collision with an immovable object without damage to the body of the car. the bumper cushions the shock by absorbing the force over a distance. The magnitude of the average force (in n) on a bumper that collapses 0.210 m while bringing a 950 kg car to rest from an initial speed of 1.2 m/s is 3138.46 N.

To calculate the average force exerted on the car's bumper, we can use the formula:
average force = (mass x change in velocity) / time
First, we need to calculate the time it takes for the car to come to a complete stop. We can use the equation:
distance = (initial velocity x time) + (0.5 x acceleration x \(time^2\))
Since the car comes to a stop, the final velocity is 0. Solving for time, we get:
0.210 m = (1.2 m/s x time) + (0.5 x (-a) x \(time^2\))
Where a is the acceleration of the car (which we don't know yet). Rearranging, we get a quadratic equation:
0.5 x (-a) x \(time^2\) + 1.2 m/s x time - 0.210 m = 0
Using the quadratic formula, we get:
time = 0.364 s
Now we can calculate the acceleration of the car using the equation:
acceleration = (final velocity - initial velocity) / time
Since the final velocity is 0, we get:
acceleration = -1.2 m/s / 0.364 s
acceleration = -3.30 \(m/s^2\)
Now we can use the formula for average force:
average force = (mass x change in velocity) / time
The change in velocity is just the initial velocity (1.2 m/s) since the car comes to a complete stop. The mass of the car is 950 kg. Plugging in these values, we get:
average force = (950 kg x 1.2 m/s) / 0.364 s
average force = 3138.46 N
Therefore, the magnitude of the average force exerted on the car's bumper is 3138.46 N.

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Answer:

The answer is c

Explanation:

i had the same question and you have to believe me and if you don't that will be on you

Answer:(:

Explanation:

1.   19685

2. 26400

3. 47244.1

4. 15.53428

5. 2.1336

6. 3.61111

7. 42240

8. 560

9. 24.384

10. 54

Answer: 9

Explanation: because you would add 13+4=17, then you would add 27+5=33, so then 4+5=9 so there's your answe

Answer:

Einsteins theory about time says:

Time slows down or speeds up depending on how fast you move relative to something else (So when I'm having fun time move fast, and when I'm doing my homework, time moves slow :( )

Explanation:

Have a great summer :)

Answer:

hB djJS E DIS SIS. AHA. SDI DVZ SIS.Zsjsnw

Answer:

Wouldn't it be 17.5. Force doubles in weight.

Explanation:

Answer:

2.5

Explanation:

A rabbit is trying to cross the street. Its velocity v as a function of time t is given in the graph below where rightwards is the positive velocity direction 2.5 m.

When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.

Rabbit displacement is 2.5 m.

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The correct answer is B. According to Newton's law of universal gravitation, the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

In simpler terms, as objects get closer together, the gravitational force between them increases.

When the distance between two objects decreases, the denominator of the equation (distance squared) becomes smaller, resulting in a larger force. Conversely, when the distance increases, the denominator becomes larger, resulting in a smaller force.

It is important to note that the mass of an object does not directly affect the strength of the gravitational force between two objects. However, a higher mass will lead to a greater gravitational force when compared to a lower mass, but only because the force is being exerted on a more massive object. The mass of an individual object doesn't directly affect the gravitational force it experiences from another object. option B

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Answer: \(-\frac{1}{2}\times \frac{d[Br^.]}{dt}=+\frac{d[Br_2]}{dt}\)

Explanation:

Rate of a reaction is defined as the rate of change of concentration per unit time.

Thus for reaction:

\(2Br^.\rightarrow Br_2\)

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

\(Rate=-\frac{d[Br^.]}{2dt}\)

or \(Rate=+\frac{d[Br_2]}{dt}\)

Thus \(-\frac{d[Br^.]}{2dt}=+\frac{d[Br_2]}{dt}\)

Answer:

Gamma

Explanation:

Alpha particles are similar to Helium particles, which have a mass of 4.

Beta particles are electrons, and they have a mass of 1/1836, a charge of -1.

Protons have a charge of +1 and a mass of 1.

Gamma emission is in waves, not particles, so they have no mass and no charge.

Gamma particle has no mass or charge. Hence option C is correct.

A gamma ray, commonly known as gamma radiation (symbol or gamma), is a kind of electromagnetic radiation that is produced by the radioactive disintegration of atomic nuclei. It is made up of electromagnetic waves with the smallest wavelengths, which are often shorter than those of X-rays. It gives the most photon energy at frequencies exceeding 30 exahertz (31019 Hz). Paul Villard, a French scientist and physicist, discovered gamma radiation in 1900 while researching radium radiation. Ernest Rutherford dubbed this radiation gamma rays in 1903 because of its comparatively significant penetration of matter; in 1900, he named two less penetrating forms of decay radiation (discovered by Henri Becquerel) alpha rays and beta rays in ascending order of penetrating strength.

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Answer:

dont know

Explanation:

need points

Given that organic molecules need to react in order to produce life, this suggests we should search for worlds in the solar system that have:

Organic molecules are chemical compounds that include carbon and hydrogen atoms that are produced by living organisms. These molecules play a crucial role in the formation of life on Earth. Life on Earth began about 4 billion years ago with the formation of organic molecules in the oceans. In the search for life beyond Earth, scientists are searching for signs of organic molecules in other worlds in the solar system.

There are several criteria for finding life on other planets. The first criterion is that the planet must have either an atmosphere, or a surface or subsurface liquid media such as water, or both. This is because organic molecules need to react in order to produce life. Without an atmosphere or a liquid medium, the organic molecules will not react, and life cannot form.

The second criterion is that the planet must have organic molecules on its surface. Organic molecules can be produced by living organisms, or they can be produced by non-living processes such as meteorite impacts or volcanic activity. If organic molecules are found on the surface of a planet, it suggests that the planet has the potential to support life.

Therefore, we should search for worlds in the solar system that have either an atmosphere, or a surface or subsurface liquid media such as water, or both.

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Energy and matter are both conserved within natural processes. It follows that while energy and matter can adopt different forms, they cannot be produced or extinguished. Different types of matter and energy can combine, and energy and matter frequently cycle within a system.

Explain energy.

Energy is the ability to perform tasks. It could appear in numerous different forms, such as potential, kinetic, thermal, electrical, chemical, nuclear, etc. Additionally, there is heat and work, which is energy being transferred from one entity to another.

The most important source of chemical energy for sustaining life is found in food. The three states of matter—liquid, solid, and gas—are essential because matter and energy move in concert along food networks.

An ice cube composed of water, for instance, changes into liquid water when you add energy, and when you add even more energy, it turns into steam. The type of matter and the quantity of matter are the same as in the original cube, but the level of energy may be higher or lower.

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A slit of width 0.01 mm has light of wavelength 600 nm passing through it onto a screen 60 cm away.  The central maximum will be 7.2 cm .

The central maximum is the brightest central portion of the diffraction pattern. The central maximum is the widest and has the maximum intensity.

The diffraction pattern involves a central bright fringe, also known as the central maxima. Furthermore, central maxima is surrounded by dark and bright lines known as the secondary minima and maxima.

Given

slit width = 0.01 mm = .01 * \(10^{-3}\) m

wavelength = 600 nm = 600 * \(10^{-9}\) m

distance from screen = 60 cm = 60 * \(10^{-2}\) m

width of central maxima = (2 * lambda * D) / d

                                        = 2 * 600 * \(10^{-9}\) * 60 * \(10^{-2}\)  / .01 * \(10^{-3}\)

                                        = 7.2 * \(10^{2}\) m

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Answer:

4 is the answer

Explanation:

hope this helps

The attribute of any rotating object determined by the product of the moment of inertia and the angular velocity is known as angular momentum.

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Answer:

solubility

Explanation:

Answer:

Because they have already made an impact within our atmosphere

Answer:

Go ogle

Explanation:

lol :)))))))))))))))

The largest x-ray wavelength that can be diffracted by crystal planes with a separation of 0.229 nm is 0.458 nm. The largest x-ray wavelength that can be diffracted by crystal planes with a separation of 0.229 nm can be determined using Bragg's Law.

The largest x-ray wavelength that can be diffracted by crystal planes with a separation of 0.229 nm can be determined using Bragg's Law. According to Bragg's Law, the condition for constructive interference and diffraction occurs when the wavelength of the incident x-ray beam is equal to twice the distance between adjacent crystal planes multiplied by the sine of the angle of incidence.
In this case, the distance between the crystal planes is given as 0.229 nm. To find the largest wavelength that can be diffracted, we need to determine the maximum angle of incidence for which the sine is equal to 1. This angle is 90 degrees.
So, we can use the formula:
2 * d * sin(theta) = lambda
where d is the distance between crystal planes, theta is the angle of incidence, and lambda is the wavelength of the x-ray.
Plugging in the values, we have:
2 * 0.229 nm * sin(90 degrees) = lambda
sin(90 degrees) is equal to 1, so the equation simplifies to:
2 * 0.229 nm = lambda
lambda = 0.458 nm
Therefore, the largest x-ray wavelength that can be diffracted by crystal planes with a separation of 0.229 nm is 0.458 nm.
Please note that Bragg's Law assumes a perfect crystal structure and ideal conditions, so in practice, there may be additional factors that can affect the diffraction pattern.

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The output voltage of a battery can be calculated using the formula:
Voltage (V) = Energy (J) / Charge (C), the output voltage of the battery is 3.2 volts.

Given that 4 J of energy is expended in moving 1.25 C of charge, we can substitute these values into the formula:

V = 4 J / 1.25 C

V = 3.2 V

Therefore, the output voltage of the battery is 3.2 V.

The output voltage of the battery is calculated by dividing the energy (4 J) by the charge (1.25 C). In this case, the voltage is equal to 3.2 volts.

In order to calculate the output voltage of a battery, we need to use the formula: Voltage (V) = Energy (J) / Charge (C).

Given that 4 J of energy is expended in moving 1.25 C of charge, we can substitute these values into the formula to find the voltage.

V = 4 J / 1.25 C

V = 3.2 V

Therefore, the output voltage of the battery is 3.2 volts.

In conclusion, the output voltage of the battery is 3.2 volts.

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The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Given

The electric flux is

Radius of the sphere,

To find

a. The flux through a gaussian sphere with radius of 29.0 cm.

b. The magnitude of the charge

Explanation

a. Since the gaussian sphere covers the same charge so the electric flux through both the sphere will be same.

Thus the required flux is

b.

The magnitude of the charge is

Conclusion

a. The flux is

b. The charge is

Answer:

12.5 grams

Explanation:

From the question,

E' = E/2⁽ⁿ/a⁾....................... Equation 1

Where E' = mass left, E = Original mass, n = time, a = half-life.

Given: E = 200 grams, n = 40 years, a = 10 years.

Substitute these values into equation 1

E' = 200/2⁽40/10⁾

E' = 200/2⁴

E' = 200/16

E' = 12.5 grams.

Hence 12.5 grams of the isotope will be left.

Answer:

Exactly 27 m/s

Explanation:

P=mv

P(cannon)=2.7*1.7

P(cannon)=4.59 kg*m/s

P(cannon)=P(tshirt)

4.59=0.17*v

v=27 m/s