An object is going 50 m/s and has a momentum of 6650 kg×m/s, what is the mass of the object

Answer:  

distance = 96.04 m

Explanation:

velocity is distance over time when velocity is multiplied by time, the time in the numberator is canceled by the time in the denomiator leaving only distance.

distance = velocity * time

distance = 9.8[m/s] * 9.8[s]

distance = 9.8 * 9.8 [m]

Answer:

by reducing friction.....

Answer:

79.6kg  

127.5N

Explanation:

Given parameters:

Weight of the person on earth = 780N

 Now, we are to find;

Mass on earth;

Mass on moon;

Weight on moon

Solution:

The mass on earth and on the moon are the same. Mass is the amount of matter in a substance.  

   Weight  = mass x acceleration due to gravity

     780  = mass x 9.8

           mass  = \(\frac{780}{9.8}\)   = 79.6kg

Mass on earth and moon  = 79.6kg  

The acceleration due to gravity on the moon is 1.6m/s²

  Weight on moon = 79.6 x 1.6  = 127.5N

The field strength is needed to achieve the desired deflection.

B = 1.04375 * 10-3 T

Generally, A) We use:

F = qvB

f= mv2/R

B = mv/(qR)

using given data we get:

a speed of 2.0 × 105 m/s.

radius R = 2.0 m

mass of a proton is 1.67× 10−27 kg

a charge is 1.6× 10−19 C.

B = (1.67× 10−27 )(2.0 × 10^5)/(( 1.6× 10−19 C.)(2.0))

B = 1.04375 * 10-3 T

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Answer:

A. Battery

B. Iron Core

C. Solenoid

The average velocity of the car is 100 kilometers/hour south. This means that, on average, the car is traveling 100 kilometers per hour in the south direction relative to its starting point.

To determine the average velocity of the car, we need to calculate the displacement and divide it by the time taken. Velocity is defined as the rate of change of displacement with respect to time.

In this case, the car is traveling south, and its displacement is 200 kilometers from its starting point after 2 hours.

The average velocity is given by the formula:

Average velocity = Displacement / Time

The displacement is 200 kilometers south, and the time is 2 hours. Therefore, we have:

Average velocity = 200 kilometers south / 2 hours

Simplifying the calculation:

Average velocity = 100 kilometers/hour south

Hence, the correct answer is B. 100 kilometers/hour south. This indicates that the car's average velocity is 100 kilometers per hour towards the south direction.

It's important to note that velocity is a vector quantity and includes both magnitude (speed) and direction. In this case, the direction is specified as south, which indicates that the car is moving towards the south relative to its starting point.

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The vector field that expresses the density of induced or permanent electric dipole moments in a dielectric medium is known as polarization density (also known as electric polarization or just polarization).

Thus, A dielectric is considered to be polarized when its molecules acquire an electric dipole moment when exposed to an external electric field.

Electric polarization of the dielectric is the term used to describe the electric dipole moment induced per unit volume of the dielectric material.

The forces that emerge from these interactions can be calculated using the polarization density, which also defines how a material reacts to an applied electric field and how it modifies the electric field. It is comparable to magnetization, which measures a material's equivalent response.

Thus, The vector field that expresses the density of induced or permanent electric dipole moments in a dielectric medium is known as polarization density (also known as electric polarization or just polarization).

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The types of memories that are stored in the collective unconscious include instinctive patterns and archetypes from ancestral heritage.

The collective unconscious can be defined as  the part of the human mind  that contains distinct types of memories and also instinctive impulses in humans which may shape some of our behaviors regarding specific situations and also environmental contexts (e.g., during danger situations).

In conclusion, the types of memories that are stored in the collective unconscious include instinctive patterns and archetypes from ancestral heritage.

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Answer:

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.

Explanation:

Answer:

The starting velocity.

Explanation:

We must understand that this equation comes from the following equation of kinematics.

\(v_{f}=v_{o}+a*t\)

where:

Vf = final velocity = 33 [m/s]

Vo = starting velocity [m/s]

a = acceleration = 3 [m/s²]

t = time = 30 [s]

So, these values can be assembly in the following way:

\(v_{f}=v_{o}+a*t\\a*t=v_{f}-v_{o}\\3=\frac{33-v_{o}}{30}\)

As a result, at these locations, the cylinder's side-to-side velocity looks to be the slowest. Therefore, it appears that the cylinder has the highest side-to-side motion at these locations.

An acceleration towards the circular path's middle is felt by a body travelling along a circular path at constant speed. A centripetal force produces the acceleration, which is known as centripetal acceleration.

To put it simply, an object moving in a circle at a consistent speed is said to be in uniform circular motion. Although the object is moving at a constant pace, its velocity is changing. Since velocity is a vector,

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Answer:

observed frequency =  109.68 Hz

Explanation:

given data

speed u = 20.9 m/s

frequency f = 103 Hz

solution

we consider here speed of sound (v)  is 343 m/s

so observed frequency is express as

observed frequency = f × \(\frac{v}{v-u}\)     ...............1

put here value and we get

observed frequency =  103 × \frac{343}{343-20.9}

observed frequency =  109.68 Hz

Answer:

An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume.

Explanation:

The x -component of the angular momentum of the particle is 0.99 kgm²/s.

The y -component of the angular momentum of the particle is 3.3 kgm²/s.

The z -component of the angular momentum of the particle is 0.

Angular momentum is the property of any rotating object given by moment of inertia times angular velocity.

Mathematically, the formula for angular momentum is given as;

L = mvr

where;

The given parameters include the following;

the velocity of the particle = ( 3.1i - 8.1 k) m/s

the mass of the particle = 74 g = 0.074 kg

the displacement of the particle, x = 4.3 m, y = - 5.5 m

The x -component of the angular momentum of the particle is calculated as;

Lx = 0.074 x 3.1 x 4.3

Lx = 0.99 kgm²/s

The y -component of the angular momentum of the particle is calculated as;

Ly = 0.074 x ( -8.1) x (-5.5)

Ly = 3.3 kgm²/s

The z-component of the angular momentum of the particle is calculated as;

Lz = 0.074 x ( 0 ) x (0)

Lz = 0

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The highest energy, shortest wavelengths, and highest frequency are found in gamma rays.

An example of "electromagnetic" radiation is microwaved, which are waves of electrical and magnetic energy traveling across space together. There is a wide range of electromagnetic radiation, from very lengthy radio waves to very brief gamma rays.

Radiation with a wavelength shorter than visible light is known as ultraviolet light. If eye protection is not worn, UV exposure raises the risk of potentially blinding eye illnesses. UV radiation overexposure can cause major health problems, including cancer.

The waves are gamma rays (below 1 nm), x-rays (between 1 and 10 nm), infrared rays (between 700 and 105 nm), micro waves (between 105 and 108 nm), and radio waves (above 108 nm), in that order.

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The engine in a small airplane is specified to have a torque of 500 N⋅m. This engine drives a 2.3-m-long, 40 kg single-blade propeller.The engine in a small airplane is specified to have a torque of 500 N⋅m. it takes approximately 18.6 seconds for the propeller to reach 2000 rpm.

To determine how long it takes the propeller to reach 2000 rpm, we need to use the torque equation:

T = Iα

where T is the torque, I is the moment of inertia, and α is the angular acceleration.

We can rearrange this equation to solve for α:

α = T/I

where T is the torque and I is the moment of inertia.

The moment of inertia of a thin rod about its center of mass is given by:

I = (1/12)M\(L^2\)

where M is the mass of the rod (propeller) and L is its length.

In this case, M = 40 kg and L = 2.3 m. Therefore:

I = (1/12)(40 kg)(\(2.3 m)^2\)= 44.33 kg⋅\(m^2\)

The torque T is given as 500 N⋅m.

Substituting the values in the equation for α, we get:

α = T/I = (500 N⋅m) / (44.33 kg⋅\(m^2\)) = 11.27 rad/\(s^2\)

We need to find the time it takes for the propeller to reach 2000 rpm, which is equivalent to 209.44 rad/s. We can use the following kinematic equation to find the time t:

ω = ω0 + αt

where ω0 is the initial angular velocity, which is zero in this case.

Substituting the values, we get:

209.44 rad/s = 0 + (11.27 rad/\(s^2\)) t

Solving for t, we get:

t = 18.6 seconds (rounded to one decimal place)

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Answer:

no idea dude, go to the vietnamese server

An object accelerating means that the velocity is changing with time, in this case. Hence, option E is correct.

The overall distance the object covers in a given amount of time is its average speed. The scalar quantity represents the average speed. It does not have direction; it is represented by magnitude.

Average Speed= \(total distance / total time\)

Average velocity is a vector quantity. The change in position or displacement divided by the periods during which the displacement happens is known as average velocity. Depending on how the displacement is displaced, the average velocity may be positive or negative. Meters per second (m/s), the SI unit of average velocity, is used.

Average velocity : \(total\ displacement/ total\ time\)

So, if an object will move with constant velocity than then its acceleration will become zero, so it must be changing its speed.

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Answer:

so how much heat is there at 0 C? That's zero. But for every degree above that you have 4.184 J. You take it from there. Remember q = mc*delta T.

Answer:

0.033 seconds

Explanation:

Period = 1/30 = 0.033 seconds

Answer:

The answer is 0.03 s

Explanation:

A.P.E.X.

A photon is a tiny energy packet of electromagnetic radiation, also referred to as a light quantum.

1) Ultraviolet radiation is commonly used in sanitizing hospitals because, viruses, methicillin-resistant Staphylococcus aureus, and vancomycin-resistant enterococci are all susceptible to the germicidal effects of UV-C.

2) According to the photon theory, electrons that have been stimulated return to the ground state to create atomic emission spectra. Light or the photon is the energy that is released when electrons drop to a lower energy level.

3) To characterise the atomic characteristics of light, Albert Einstein used Planck's quantum theory.

Planck's hypothesis is supported by Einstein's demonstration that electromagnetic radiation, such as light, has both wave-like and particle-like properties.

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Answer:25N

Explanation:

Answer:

25n

Explanation:

The given statement "Aggression is intended to inflict physical or psychological harm on another individual" is true statement because Aggression is a general term for a variety of actions that might hurt you, other people, or inanimate things in the environment physically or psychologically.

"Physical attractiveness is important in attraction across cultures because it indicates good health, sound genes, and high fertility "is true statement.

"The study of how other people influence our thoughts, feelings, and actions is called social psychology." is true statement.

A person's bodily or emotional harm to another is at the heart of aggression. Aggression in psychology refers to a variety of actions that can injure oneself, others, or inanimate things in the environment. The primary goal of this kind of behaviour is to hurt another person, either physically or mentally. It can indicate a physical condition, substance use disorder, or underlying mental health condition.

Thus, all the given statement are true.

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Answer:

C

Explanation:

The system pressure will be equal to 70 pounds divided by the area of the small piston, which is 5.33 square inches. This gives a pressure of 13.13 psi (pounds per square inch).

All four planets contain stable atmospheric layers, a mantle, and a core. One of the following is FALSE regarding the four terrestrial planets (Earth, Mars, Mercury, and Venus).

Terrestrial planets include Mercury, Venus, Earth, and Mars because of their compact, stony surfaces that resemble terra firma on Earth. The four innermost planets in the solar system are the four terrestrial planets.

The four innermost planets are known to as terrestrial planets and feature a moon or moons, valleys, volcanoes, and craters. They also have a liquid heavy-metal core.

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\(\\ \bull\tt\dashrightarrow Distance=Speed\times Time\)

\(\\ \bull\tt\dashrightarrow Distance=149.81(53.70)\)

\(\\ \bull\tt\dashrightarrow Distance=8044.7m\)

It is C) doing work because he is moving the bale of cotton.It only makes sense he is still doing work the pulley is just making it easier.

Answer:

Un objeto se encuentra en equilibrio físico si la fuerza neta que se le aplica es igual a 0.

En este caso solo se aplican fuerzas en el eje horizontal, por lo que las podremos sumar directamente.

La persona A aplica una fuerza:

Fa = -3N

La persona B aplica una fuerza:

Fb = 5N

La persona C aplica una fuerza Fc, la cual aún no conocemos.

Pero sabemos que la caja está en equilibrio físico, por lo que:

Fa + Fb + Fc = 0N

reemplazando los valores que conocemos, obtenemos:

-3N + 5N + Fc = 0N

Ahora podemos resolver esto para Fc, la fuerza que aplica la persona C.

Fc = 0N + 3N - 5N

Fc = -2N

Podemos concluir que la persona C aplica una fuerza horizontal de -2N

3. Fulcrum left

Explanation: