Two balls of clay are thrown and perfectly collide with each other. One ball of clay had mass of 42.9kg and a velocity of 58 m/s. The other ball of clay had a mass of 99.4 kg and an unknown velocity before the collision. If the velocity of the combined object was -38.6m/s after the collision. What was the velocity of the second clay ball before the collision?
Two objects have a perfectly elastic collision The first object has a mass of 34.2 kg and a velocity of 65.5m/s before the collision. The second object had a mass of 97.9kg and a velocity of -29.7 m/s before the collision. If the first object's velocity was -75.61m/s after the collision, what was the second objects velocity after the collision?

The normal force exerted by the chair on us, when we sit on the chair.

When an object interacts with another object, it feels a push or a pull. Each object that two objects make contact with experiences a force. Once the encounter is over, the force between the two objects is gone. Forces are merely interactions; they do not exist independently.

When two objects interact and appear to be in physical contact with one another, contact forces are generated. Several types of contact forces include frictional forces, tensional forces, normal forces, air resistance forces, and applied forces. Even when two interacting objects are far apart from one another, action-at-a-distance forces are still present.

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Therefore, T_c~1.2×〖10〗^7 K is the equation for hydrostatic equilibrium.

A fluid's state where all of its surfaces are horizontal, coinciding, and have constant mass (or density). The opposing forces of gravity and pressure are perfectly balanced. The criterion of hydrostatic equilibrium, which is present in both planetary geology and astrophysics, is used to differentiate between dwarf planets and small solar system entities. The term "hydrostatic" is used to indicate a constant balance between pressure pushing up & gravity pulling down in a fluid.

A star is said to be in "hydrostatic equilibrium" when the gravitational force, caused by the mass of the star, and the gas pressure, caused by energy production in the star's core, balance each other out during the bulk of the star's existence.

A star must constantly fight against gravity in order to exist. Gravity is constantly pushing the star in the direction of collapse. But because the star's core is so hot, pressure is put on the gas. When the gravitational pull is equalized by this pressure, the star enters a condition of equilibrium known as hydrostatic pressure.

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The law of conservation of mass emphasizes the fact that it is not possible to create or destroy the mass in this universe. Mass just changes its form from one to another, it is never created nor destroyed.

Therefore, the law of conservation of mass is best described by - The mass of the reactants and products is equal and this mass is not dependent on the physical state of the substances.

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[NOTE: THIS IS AN INCOMPLETE QUESTION. THE COMPLETE QUESTION IS: Which best describes the law of conservation of mass?

(A) The coefficients in front of the chemicals in the reactants should be based on the physical state of the products.

(B) Products in the form of gases are not considered a part of the total mass change from reactants to products.

(C) When reactants contain both a solid and a liquid, the solid counts toward the overall mass and the liquid does not.

(D) The mass of the reactants and products is equal and is not dependent on the physical state of the substances.]

If the distance between the objects is increased, the new force would be 1N

The term gravitational force has to do with the force that acts between two masses that are on the earth's service.

Now we know that the force that acts on the object can be given by;

F = Gm1m2/r^2

F = force that acts on the object

G = gravitational constant

m1 and m2 = masses of the objects

r = distance about

We can now see that the force that acts on the object would be 1 N.

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14. None of these cases are velocity and the acceleration in the same direction at the instant.

15. I, II, and III of these cases are the velocity and acceleration in opposite directions at the instant

16. case I of these cases are the velocity and the net force perpendicular to each other at the instant.

If the velocity and acceleration are in the same direction (both have the same sign and both positive or negative), the object is accelerating. If the velocity and acceleration are opposite (with opposite signs), the object is slowing down.

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The iron rod gets magnetized when placed near a bar magnet due to magnetic induction while the copper rod does not get magnetized.

What is magnetic induction?

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Lithium and lithium-ion batteries are transported in both large and small volumes.

For instance, a single box could contain as little as five batteries, whereas a pallet could hold over 1,000, or the batteries could be enclosed in or packed with equipment.

On the other hand, lithium batteries, which contain lithium metal, cannot be recharged. Lithium-ion batteries can be recharged but do not contain lithium metal.

Lithium and lithium-ion batteries are mostly utilized in consumer applications and are exempt from dangerous goods/hazardous materials rules. Small lithium batteries are often used in timepieces and cameras. Lithium-ion batteries are extensively used in laptops and cell phones.

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Answer:

Approximately [tex]16.0\; {\rm m\cdot s^{-1}}[/tex].

Explanation:

When an object of mass [tex]m[/tex] travels at a velocity of [tex]v[/tex], the momentum [tex]p[/tex] of that object will be [tex]p = m\, v[/tex].

In this example, the momentum of the car before the collision will be:

[tex]\begin{aligned}p &= m\, v \\ &= (4155\; {\rm kg})\, (28.3\; {\rm m\cdot s^{-1}}) \\ &\approx 1.17587\times 10^{5}\; {\rm kg \cdot m\cdot s^{-1}} \end{aligned}[/tex].

Since the truck was initially not moving, the initial momentum of the truck will be [tex](3172\; {\rm kg})\, (0\; {\rm m\cdot s^{-1}}) = 0\; {\rm kg \cdot m\cdot s^{-1}}[/tex].

Momentum is conserved in collisions. In other words, the sum of the momentum of the truck and the car will be the same right before and after the collision.

The sum of the momentum of the truck and the car was approximately [tex]1.17587\times 10^{5}\; {\rm kg \cdot m\cdot s^{-1}}[/tex] right before the collision. By the conservation of momentum, the sum of the momentum of the two vehicles right after the collision will also be [tex]1.17587\times 10^{5}\; {\rm kg \cdot m\cdot s^{-1}}\![/tex].

The velocity of the two vehicles right after the collision will be the same since the vehicles are stuck together. Let [tex]v[/tex] denote this velocity.

The sum of the mass of the two vehicles is [tex]m = (4155\; {\rm kg}) + (3172\; {\rm kg}) = 7327\; {\rm kg}[/tex]. Divide the total momentum of the two vehicles by their total mass to find the velocity:

[tex]\begin{aligned}v &= \frac{p}{m} \\ &\approx \frac{1.17587\times 10^{5}\; {\rm kg \cdot m\cdot s^{-1}}}{7327\; {\rm kg}} \\ &\approx 16.0\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].

From Charles's law, the magnitude of the final temperature is 586 K

An Ideal gas is a gas which obeys ideal gas equation at all pressures, volumes and temperatures. The ideal gas equation can be express as

PV = nRT

Where

Given that 1000 cm³ of air at 20 °C and 101.35 kPa is heated at constant pressure until its volume doubles.

From the ideal gas equation,

To calculate the final temperature of the gas, we will use the formula below

V1/T1 = V2/T2

Since Pressure is constant

Substitute the necessary parameters into the formula

1000/293 = 2000/T2

Cross multiply

1000T2 = 586,000

T2 = 586,000/1000

T2 = 586 K

Therefore, the final temperature of the gas is 586 K

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The force of viscosity is F = k r v η. Spherical balls of radius R are falling in a viscous fluid of viscosity η with a velocity v.

What is viscous force?

Viscosity refers to a material's capacity to resist movement between its layers. It is the force that resists relative motion between the layers. It is also known as viscous force.

What is viscous force formula?

In the above equation, the shear force is the viscous force, which is the only internal resistance that causes shear stress to develop along with the fluid layers. As a result, the viscous force formula will be given as. F=Aμdudy.

Hence  F = k r v η is a correct answer.

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Suri places each planet into a container of water. Saturn will float on top of the water because of the least density among all the planets. Therefore, option (D) is correct.

The density can be defined as the mass per unit volume. The average density of a substance is equal to the total mass divided by its total volume.

Density = mass/ volume.

As the Density was assumed and for the options, the density can be,

For, Mercury can be 5.4 g/cm³ , Venus can be 5.2 g/cm³ , Neptune can be 1.6 g/cm³, and Saturn is 0.7 g/cm³. Therefore, Saturn will float on top of the water.

Thus, Option D is the correct answer.

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Answer:

how long the coin was in the air was about 45 how I got your answer was by dividing 900 by 20 bc when u divide u have to add a 0 so that's how I got 900 then I just divided and got 45

The universe's continual supply of energy and matter comes from the enigmatic big bang. Even if the total amount remains constant, this spreads out over time and becomes less and less beneficial.

However, the energy required for the Big Bang at the beginning of the Universe—that is, of everything—must have come from somewhere. Many cosmologists believe that it originates in the phenomenon known as quantum uncertainty, which allows energy to appear seemingly out of thin air.

In the instants following the Big Bang, the majority of the hydrogen and helium in the universe were produced. Later came the heavier components. A large variety of elements are created and dispersed by supernova explosions.

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Answer:

[tex]\huge\boxed{\sf v = 2.27\ m/s}[/tex]

Explanation:

Angular velocity = ω = 0.71 rad/s

Radius = r = 3.2 m

Linear velocity = v = ?

v = rω

v = (3.2)(0.71)

v = 2.27 m/s

[tex]\rule[225]{225}{2}[/tex]

Mass of body = 8kg

Momentum of body = [tex]30kgms^{-1}[/tex]

Force = 20N

Time for which force acts = 5s

Impulse of the force = Force × time for which force acts

= 20 × 5= 100Ns

Change of momentum = Impulse of the force= 100Ns

Therefore, the impulse of the force= 100Ns

Change of momentum is 100Ns

The final momentum of the body = 100Ns
The final velocity of the body is 5m/s

What is momentum?

Momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction.

According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum. Check out Newton's laws of motion.

According to Newton's second law, if a particle is subjected to a constant force for a specific amount of time, the result of the force and time (referred to as the impulse) is equal to the change in momentum.

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Skinner's Operant Conditioning focus stressed that the  consequences of a behavior will indicate if there is  possibility of it being repeated and also  the human behavior  can be attributed to something in a person's environment.

Pavlov's classical Conditioning stressed that two stimuli can be linked  together  so that there can be new learned response in indivisuals .

Example of Pavlov's classical Conditioning  is that a dogs could be conditioned to salivate at the sound of a bell if it was programmed to ring at the time of food.

Example of Skinner's Operant Conditioning is that of negative reinforcement which was demonstrated by placing a rat in  Skinner box  which then subjected to unpleasant electric current  and make it to experience some discomfort.

Classical conditioning can as well be described as the Pavlovian or respondent conditioning which is the learning that do take place when two stimuli are linked together  and they can bring about new learned response in a person or animal.

Operant conditioning  was the one that stressed that the cause of human behavior  can be linked to the something in a person's environment.

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Answer:

er so ue 0.984 kg study your self brhh

Answer:

The object with the longer wavelength is the microwave oven. This can be determined using the equation λ = c/f, where λ is the wavelength, c is the speed of light (3 x 10^8 m/s), and f is the frequency.

For a microwave oven:

λ = (3 x 10^8 m/s) / (2.45 GHz)

λ = 1.22 x 10^-2 m

For a Bluetooth electronic/internet router:

λ = (3 x 10^8 m/s) / (2.4 GHz)

λ = 1.25 x 10^-2 m

Therefore, the microwave oven has a longer wavelength.

Explanation: