Which of the following is equal to an impulse of 9 units?
A. Force = 5, time = 2
B. Force = 1, time = 8.5
C. Force = 2, time = 4.5
D. Force = 3, time = 2

1 Kilojoule [kJ] = 737.562 149 277 27 Foot pound force [ftlbf]

Answer:

divide by 1000

Explanation:

eg 1kJ is equal to 1000J

Answer:

Explanation:

Given refraction by Siller, angular refraction for first order, for light with a wave length of 613 nanometers

When waves move from one medium to another, they can change direction, which is known as refraction. Wavelength and speed changes usually occur with refraction. The bending of waves around gaps and obstructions is known as diffraction. With increasing wavelength, more diffraction occurs.

Diffraction, a term, is the change that light goes through, especially as it passes by the edges of opaque bodies or through small apertures, giving the impression that the rays are being deflected. additionally: a corresponding change of other waves (like sound waves) or of moving particles (such as electrons).

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The density of the metal is twice the density of liquid since acceleration, a is half of accelerating due to gravity, g.

For a solid falling through a viscous fluid, the acceleration of the object decreases until it attains terminal velocity.

The acceleration of the body increases with increase in density of the solid.

When density of solid = density of liquid, acceleration a = g

When density of solid = 2 × density of the liquid, acceleration a = g/2.

Therefore, the density of the metal is twice the density of liquid since acceleration, a is half of accelerating due to gravity, g.

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Answer:

if positioned at height

Explanation:

just search it online

Answer: 1st, 4th, and 6th choice

A bow is drawn back from its equilibrium position.

A spring toy dart gun is loaded with a dart.

A bungee cord is stretched with a person at the end.

Explanation:

If these are the choices...

A bow is drawn back from its equilibrium position.

An arrow rests on a bow.

A spring toy dart gun is unloaded.

A spring toy dart gun is loaded with a dart.

A bungee cord is connected to a tall tower.

A bungee cord is stretched with a person at the end.

Edge 2021

The Witness Experimenter configure options include a Skip field that misses out on a different number of random numbers for each replication (Option D).

Experimenter configure options are some basic settings of a Witness experiment. These settings influence how the experiment would behave and what output is produced. With the help of configure options, you can set the value of random number streams and skip replication.

The skip value misses out on a different number of random numbers for each replication. As a result, this provides some level of control over the replication. By changing the value of the skip, you can control which random numbers should be missed and which should not be missed. In addition, by using the skip field, you can increase the simulation run speed. As a result, you get better output in less time.

Thus, the correct option is D.

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Answer:

 K = 9.53 MeV

Explanation:

The kinetic energy that the alpha particle has emitted, is the energy in excess after removing the resting energy of the atoms and the helium nucleus that forms the alpha particle

Since energy and masses are related and cannot be

          m₀ c² = \(m_{f}\) c² + m_He c²+ K

          K = c² (m₀ - m_{f} - m_He)

the mass of the Helium atom is 4 u

           K = (3 10⁸)² (211,988868 -207.976652 - 4,002) 1,661 10⁻²⁷

           K = 14,949 10⁻¹¹ (0.0102)

          K = 1,527 10⁻¹² J

let's reduce 1 J = 6,242 10¹² MeV

           K = 9.53 MeV

The minimum speed that must be given to the pail at the highest point of the circle if no water is to spill from it can be determined using the equation for centripetal acceleration.

Centripetal acceleration is given by the equation a = v²/r, where v is the speed, and r is the radius of the circle.

At the highest point of the circle, the centripetal acceleration must be equal to the acceleration due to gravity, g, in order for no water to spill from the pail.

Setting the two equations equal to each other and solving for v gives:

v²/r = g

v² = g*r

v = √(g*r)

Therefore, the minimum speed that must be given to the pail at the highest point of the circle if no water is to spill from it is √(g*r), where g is the acceleration due to gravity, and r is the radius of the circle.

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Answer:

if the gravity is high it will push down

if the gravity is low it will float and eventually come down

Explanation:

Answer:

The net displacement is

\(R= \sqrt{A^2+B^2+2AB \cos \theta}\)

\(=\sqrt{15^2+25^2+2AB \cos 30^\circ} \\\\=\sqrt{225+625+ \cos30^0} \\\\=38.7m\)

Explanation:

Suppose that you walk 15 meters at 30 degrees as measured from the East. Then you walk another 25 meters at 60 degrees from the East what is your net displacement

Given data

A = 15 m

B = 25 m

Angle between the vectors A and B is θ = 30°

The net displacement is

\(R= \sqrt{A^2+B^2+2AB \cos \theta}\)

\(=\sqrt{15^2+25^2+2AB \cos 30^\circ} \\\\=\sqrt{225+625+ \cos30^0} \\\\=38.7m\)

The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

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Answer:19.1m

Explanation:

Here,

Size of object = 1.5 m;

Object distance (u) = - 2m = -200cm

focal length (f) = - 3.0 cm

Image distance (v) = ?

Using lens formula

Now magnification is given by

Final answer is :-

Image distance = - 2.96 cm & magnification = 0.0148

The heat that is absorbed by the hundred gram of 5 in order to raise the temperature from minus 10 degree Celsius to 20 degree Celsius is found to be 2.5 x 10⁵ J.

The heat absorbed by the ice will be given by the relation,

Q = m(L+c∆t)

Where M is the mass of the ice l is the latent heat of vaporization for the ice ∆t is the change in temperature of the ice and c is specific heat of water.

Now it is given that the mass of the ice is hundred grams and the temperature of the ice Rises from -10 degree Celsius to 20 degree Celsius.

The value of L is 2.5 x 10^-16 J/kg.

Putting all the values.

Q = 0.1(2.5 x 10⁶+4.2(30))

Q = 2.5 x 10⁵ J

So, the change in heat of the ice is found to be 2.5 x 10⁵ J.

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Answer:

the second law of thermodynamics. that some energy is destroyed in every energy conversion.

Explanation:

According to the second law of thermodynamics, energy conversion is never 100% efficient. Some energy is always lost as it is being converted from one form to the other.

The fact that a steer must eat at least 100 pounds of grain to gain less than 10 pounds of muscle tissue shows that not all the energy taken up from the grain is channelled towards building the muscle tissue. Some energy from the grains are lost on the way according to the second law of thermodynamics.

The horizontal distance traveled by the football is determined as 25.33 m.

The horizontal distance traveled by the football is calculated as follows;

X = u²sin(2θ)/g

where;

X = (18² x sin(2 x 65))/9.8

X = 25.33 m

Thus, the horizontal distance traveled by the football is determined as 25.33 m.

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Answer:

Im gonna say it is answer A:) Hope this helps!

Explanation:

Important Formulas:

\(v=\lambda f\)

velocity(measured in m/s) = wavelength(measured in meters) * frequency(measured in hertz)

\(f=\dfrac{1}{T}\)

frequency(measured in hertz) = 1 / period(measured in seconds)

__________________________________________________________

Given:

\(v=362m/s\)

\(T=4.17s\)

\(\lambda=?\)

__________________________________________________________

Finding frequency:

\(f=\dfrac{1}{T}\)

\(f=\dfrac{1}{4.17}\)

\(f=0.24Hz\)

__________________________________________________________

Rearranging formula for velocity to make wavelength the subject:

\(v=\lambda f\)

\(\dfrac{v}{f} =\dfrac{\lambda f}{f}\)

\(\lambda=\dfrac{v}{f}\)

__________________________________________________________

Finding wavelength:

\(\lambda=\dfrac{v}{f}\)

\(\lambda=\dfrac{362}{0.24}\)

__________________________________________________________

\(\boxed{\lambda=1508.33m}\)

Answer:

for the first time in the future of our games are based on your car advertising

Explanation:

for the first time in the fhgvhbgj tire and wheel drive automatic captions and subtitles for the first time in the future of our games of

Answer:

reactants --> products + thermal energy

Explanation:

Heat is absorbed in endothermic reaction.

The percentage of weight that should be in front of the trailer is 60%

According to the GMC Trailering Guide, to get the right trailer tongue weight, you should concentrate about 60% of the load evenly on the front half of the trailer. 60% of the trailer load should be in front of the axle and 40% behind it. This ensures the correct weight of the tongs and prevents the trailer from rocking. Weight distribution should be as efficient as possible by placing 60% of the weight in the front of the trailer and 40% in the rear. There are some additional safety precautions to consider. 

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The equivalent resistance of the circuit is 2.67 ohms.

The current following in the circuit is 4.5 A.

The voltage drop in each resistor, V1 = 12.01 V and V2 = 21.36 V

The power dissipated in the circuit is 51.4 W.

The equivalent resistance of the circuit is calculate  as follows;

1/Re = 1/4 + 1/8

1/Re = 3/8

Re = 8/3

Re = 2.67 ohms

The current following in the circuit is calculated as;

I = V/Re

I = 12 / 2.67

I = 4.5 A

The power dissipated in the circuit is calculated as;

P = I²R

P = 4.5² x 2.67

P = 54.1 W

The voltage drop in each resistor is calculated as;

V1 = 4.5 x 2.67

V1 = 12.01 V

V2 = 8 x 2.67

V2 = 21.36 V

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Answer:

Gravitational attraction caused the volume of the nebula to decrease, which raised the particle motion and temperature at the center of the nebula to the necessary 14 million Kelvin.

Explanation:

Plato/edmentum sample answer

Gravitational attraction caused the volume of the nebula to decrease, which raised the particle motion and temperature at the center of the nebula to the necessary 14 million Kelvin.

Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.[note 1] The publication of the theory has become known as the "first great unification", as it marked the unification of the previously described phenomena of gravity on Earth with known astronomical behaviors.

This is a general physical law derived from empirical observations by what Isaac Newton called inductive reasoning. It is a part of classical mechanics and was formulated in Newton's work Philosophiæ Naturalis Principia Mathematica ("the Principia"), first published on 5 July 1687. When Newton presented Book 1 of the unpublished text in April 1686 to the Royal Society, Robert Hooke made a claim that Newton had obtained the inverse square law from him.

In today's language, the law states that every point mass attracts every other point mass by a force acting along the line intersecting the two points. The force is proportional to the product of the two masses, and inversely proportional to the square of the distance between them.

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The gravitational force from the sun controls the orbit of the moon and the planet besides gravity.

Anything in the universe if has mass, then it is tends to have some gravitational interaction with other objects having some mass.

The moon and the planet interact with each other due to the gravity of the planet. Beside this gravity, one more force that is responsible is the gravitational force due to the sun.

The gravitational force of the sun makes the earth rotate around the sun, and it indeed result in the rotation of the moon around the planet.

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Answer :

Label A - nucleus.

Label B- electron cloud.

Explanation :

An atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or the center of the nucleus where the mass of the an atom is concentrated.

The electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

In the picture, label A shows the nucleus.

Electrons has the ability to revolve around the nucleus in a fixed circular orbit. Electron cloud represents the spreading of the electrons energy.

In the picture, label B shows the electron cloud.

Hence, the label A - nucleus and label B- electron cloud.

Answer:

c. violet, because it has the shortest wavelength

Answer:

C.  Current.

Explanation:

In a series circuit the current is equal in all of its components, so to measure the current we put the meter in series with the circuit.

Answer:

36 Newtons

Explanation:

The force of attraction or repulsion between two charges can be given by Coulomb's Law:

\(F = \frac{kq_1q_2}{r^2}\)

where,

F = Force

k = Coulomb's Constant

q₁ = magnitude of first charge

q₂ = magnitude of second charge

r = distance between charges

Hence, the charges with opposite signs will produce a result with a negative value. While, the charges with same sign will produce positive result of force value.

Hence, the force between two charges with the same sign will be 36 Newtons

The gravitational force between the Sun and Earth would become 1/100 or 0.01 times weaker compared to its original strength if Earth were moved to a distance of 10 AU from the Sun.

The strength of the gravitational force between two objects depends on the distance between them. The force of gravity follows an inverse square law, which means that if the distance between two objects is doubled, the gravitational force becomes four times weaker.

If Earth were to be moved to a distance of 10 astronomical units (AU) from the Sun (1 AU is the average distance between Earth and the Sun), we can calculate the change in the gravitational force.

The distance from the Sun to Earth would increase by a factor of 10, making it 10 times greater than the original distance. According to the inverse square law, the gravitational force would then be (1/10)² = 1/100 times its original strength.

Therefore, the gravitational force between the Sun and Earth would become 1/100 or 0.01 times weaker compared to its original strength if Earth were moved to a distance of 10 AU from the Sun.

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