- True or false: A 100 kilogram moon rock has more inertia on Earth than it does on the Moon.
True
False

Answer:

bhai what is yhis? i dont understand

A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy, and the mass of the car is 1.6 kg.

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object to accelerate it. We must put in the effort to apply force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

Definition: When an object is moving at a constant speed—that is, its speed does not change—we say it is moving at a constant speed. steady rate

Given:

KE = 500 J

v = 25 m/s

The formula for Kinetic Energy is given:

KE = ½ mv²

where: KE - Kinetic Energy

m - mass

v - velocity

Substituting the value of KE and v in the formula,

500 J = (½)(m)(25 m/s)²

m = (500 J)(2)/(25 m/s)²

m = 1.6 kg

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Answer: B

Explanation: positive and negative charges attract each other and get stronger as they get closer

The solar system shows the planets in their orbits around the sun in this order: Mercury, Venus, Earth with Moon, Mars, Jupiter, Saturn. Fixed stars are around the outside of the orbit of Saturn.

Explanation:

Aristarchus of Samos was an ancient Greek astronomer and mathematician who presented the first known heliocentric model that placed the Sun at the center. So I had to choose the choice that was most similar to that.

Answer:

A. it is Electromagnet

B. there are 2 ways to increase the magnetic field in this situation.

hence only by doing first way ( increase number of turns) magnetic field can be increased.

Answer:    Answer: The object moves forward at 5 m/s, stops, and then changes velocity.

Explanation:

With the information given in the question we can graph the points (image attached).

As we can observe, in the first segment of the graph the velocity is increasing linearly (at a constant rate) and is 5 m/s, then in the second segment we can see the position of the object remains the same from second 2 to second 4, which means the object is stopped.

Finally, in the third and last segment, we can observe a change in velocity (at a negative constant rate, because is decreasing), which is decreasing until the object stops.

Explanation:

Answer:

78.2 km

Explanation:

km is greater unit than meter and 1 km has 1000m so divide 78200 by 1000 we get 78.2 km so answer would be 7.82 x 10^1

The specific latent heat of fusion of ice, which represents the amount of heat energy required to convert 1 kilogram of water into ice at its melting point, is determined to be 376,000 J/kg based on the given information.

To calculate the specific latent heat of fusion of ice, we need to use the equation:

Heat extracted = mass × specific latent heat of fusion

Given:

Mass of water (m) = 0.5 kg

Heat extracted (Q) = 188,000 J

We know that the heat extracted is equal to the heat required for the phase change from water to ice, which is the product of the mass and the specific latent heat of fusion.

Using the equation:

Q = m × Lf

Where:

Q is the heat extracted

m is the mass

Lf is the specific latent heat of fusion

We can rearrange the equation to solve for Lf:

Lf = Q / m

Substituting the given values:

Lf = 188,000 J / 0.5 kg

Lf = 376,000 J/kg

The specific latent heat of fusion of ice, which represents the amount of heat energy required to convert 1 kilogram of water into ice at its melting point, is determined to be 376,000 J/kg based on the given information.

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Hey,

Following the second Newton's Law  :

✔ We apply : F = m x a ⇔ m = F/a with F in N, m in kg and a in m/s²

the object therefore has a mass of 8 kg

The Boolean equation for the given circuit, using De Morgan equivalent gates and bubble pushing methods, can be written as follows:

(A + B)' + (C + D)' = Y

In the given circuit, we have two inputs, A and B, which are connected to the first OR gate. The output of this OR gate is inverted using a NOT gate. Similarly, we have inputs C and D, which are connected to the second OR gate. The output of this OR gate is also inverted using a NOT gate. Finally, the outputs of the two NOT gates are connected to a third OR gate, which gives us the output Y.

To write the Boolean equation, we can use De Morgan's theorem to simplify the circuit. De Morgan's theorem states that the complement of the sum of two variables is equal to the product of their complements. Using this theorem, we can rewrite the first part of the circuit as (A' * B') and the second part as (C' * D').

Applying the bubble pushing method, we can eliminate the NOT gates and rewrite the equation as (A' * B') + (C' * D') = Y.

This equation represents the logical relationship between the inputs A, B, C, D, and the output Y in the given circuit. It states that the output Y is the result of the OR operation between the complemented inputs A and B, and the complemented inputs C and D.

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When the house is illuminated by white light, the pigments that reflect red and blue light and absorb all other colors will only reflect those specific wavelengths of light. Since white light is a combination of all visible colors, including red, green, and blue, the pigments will reflect only the red and blue components of the white light, while absorbing the remaining colors.

When red and blue light are reflected, they combine to form magenta. Therefore, the house would appear to be magenta when illuminated by white light. Magenta is a vibrant color that lies between red and blue on the color spectrum. It is perceived as a purplish-pink color.

It's important to note that the perceived color may also be influenced by the intensity and proportions of the reflected red and blue light, as well as the surrounding lighting conditions. However, under normal circumstances, the house would appear predominantly magenta due to the selective reflection of red and blue light by the pigments.

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Answer:

4.43 m/s

Explanation:

The radius of circle is = 2m

Acceleration due to gravity is = 9.8 m/s²

To find the speed the stone move for its centripetal acceleration to be equal to the acceleration due to gravity will be;

a=v²/r   where a is acceleration due to gravity and r is radius of the circle

9.8 =v²/2

9.8 *2 = v²

19.62 = v²

√19.62 =v

4.43 m/s = v

The required velocity is  4.4 m/s.

The centripetal acceleration is given by the formula;

ac= v^2/r

v = linear speed

r = radius of the circular path

We are looking for the velocity at which ac = g = 9.8m/s^2

We already have the radius of the circular path as 2.0 meters

9.8 m/s^2 = v^2/2 m

v = √2(9.8)

v = 4.4 m/s

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(a) The distance travelled by the object is  100 m.

(b) The displacement of the object in time interval between t = 0 s and t = 10 s is 60 m.

(a) The distance travelled by the object is calculated from the total area of the curve.

total distance = area of triangle 1 + area of triangle 2 + area of rectangle.

total distance = (¹/₂ x base x height)₁ +  (¹/₂ x base x height)₂ + length x width

total distance = (¹/₂ x 6 s x 20 m/s) +  (¹/₂ (8 - 6) 20) + (10 - 0)(10 - 8)

total distance =  60 m + 20 m + 20 m

total distance = 100 m

(b) The displacement of the object in time interval between t = 0 s and t = 10 s is calculated as follows;

displacement = final position - initial position

displacement =  (¹/₂ x base x height)₁ +  (¹/₂ x base x height)₂ + length x width

displacement = (¹/₂ x 6 s x 20 m/s) +  (¹/₂ (8 - 6) (-20)) + (10 - 0)(10 - 8)

displacement = 60 m - 20 m + 20 m = 60 m

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I found this answer on another website.

Answer:

Explanation:

hope this helps!

thermal,true the explanation is because the other guy said so

On the x-axis, the electric field is equal to zero at x=0.67m.

To determine the location on the x-axis where the electric field is zero, we can use the principle of superposition and the formula for the electric field due to a point charge. The electric field at a point in space is the vector sum of the electric fields created by all the charges present.

Given that a 15x \(10^-^6\) C charge is placed at the origin (x=0) and a 9x\(10^-^6\)C charge is placed on the x-axis at x=1.00m, we need to find the point on the x-axis where the net electric field is zero.

Let's assume the point on the x-axis where the electric field is zero is located at x=x₀. At this point, the electric fields created by the two charges should cancel each other out.

The electric field due to a point charge is given by the equation E = k*q/r², where E is the electric field, k is Coulomb's constant (k = 8.99x \(10^9\) Nm²/C²), q is the charge, and r is the distance from the charge.

Considering the charge at the origin, the electric field at x₀ is given by E₁ = k*(15x \(10^-^6\))/(x₀)².

Considering the charge at x=1.00m, the electric field at x₀ is given by E₂ = k*(9x \(10^-^6\) )/(1.00-x₀)².

For the net electric field to be zero, E₁ + E₂ must equal zero. By substituting the equations for E₁ and E₂, we can solve for x₀:

k*(15x \(10^-^6\))/(x₀)² + k*(9x \(10^-^6\))/(1.00-x₀)² = 0.

Solving this equation will give us the value of x₀, which is approximately 0.67m.

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Answer:

32.5 miles

Explanation:

65/2=32.5

Hope this helps!

Answer:

32.5

Explanation:

According to the kinetic-molecular theory, a gas expands as the average distance between its particles increases.

According to the kinetic-molecular theory, the expansion of a gas can be understood through the behavior of its individual particles, such as molecules or atoms. The kinetic-molecular theory describes the motion and interactions of these particles and provides insights into the macroscopic properties of gases, including their expansion.

The kinetic-molecular theory states that gas particles are in constant random motion. They move in straight lines until they collide with each other or with the walls of their container. These collisions are elastic, meaning that no energy is lost during the collision. The theory also assumes that the volume occupied by the gas particles themselves is negligible compared to the volume of the container.

When a gas expands, it means that the volume it occupies increases. This expansion occurs due to the increase in the average distance between gas particles. As the gas is heated or if external pressure is reduced, the kinetic energy of the gas particles increases. This increase in kinetic energy leads to an increase in the speed of the gas particles and their frequency of collisions with each other and the container walls.

During the expansion, the gas particles collide with the walls of the container more frequently and with greater force. These collisions exert a pressure on the walls, known as the gas pressure. As the gas expands, the particles collide more frequently and exert a higher pressure on the walls, resulting in the expansion of the gas.

The kinetic-molecular theory helps explain the macroscopic behavior of gases, including their expansion, based on the microscopic motion and collisions of individual gas particles. It provides a theoretical framework for understanding how gases respond to changes in temperature, pressure, and volume.

In summary, according to the kinetic-molecular theory, a gas expands as the average distance between its particles increases. This expansion is a result of the increased speed and frequency of collisions among the gas particles, which exert higher pressure on the walls of the container. The kinetic-molecular theory provides a fundamental understanding of the behavior of gases and their expansion based on the motion and interactions of individual gas particles.

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Answer:

My teacher said 36m when I asked her

Explanation:

HOPE THIS HELPS!!

Answer:

Obviously, the 5lb ball when thrown will go farther . Newton second law of motion F = mass x acceleration .

So the more the mass , the more force will be used to throw the ball.

Explanation:

Newton's law of universal gravitation doesn't say anything about the cause of gravity.

Einstein's theory of relativity does.

Take into account that any conversion factor can be written as a fraction in which you have the equivalence in the numerator and denominator.

b. 1 mile = 1.61 kilometer

By using the abbreviated form mi as mile and km as kiometer, you can write:

c. 4 cups = 1 quart

(a) When the angular momentum is the same, the ratio of the rotational inertias (I_a/I_b) is 1:1.

(b) When the rotational kinetic energy is the same, the ratio of the rotational inertias (I_a/I_b) is equal to the ratio of the kinetic energies (K_a/K_b).

Let's denote the radius of wheel A as r_a and the radius of wheel B as r_b. According to the problem, r_b = 3r_a.

(a) When the two wheels have the same angular momentum about their central axes:

Angular momentum is given by the equation L = Iω, where L is the angular momentum, I is the rotational inertia, and ω is the angular velocity.

For wheel A: L_a = I_a * ω_a

For wheel B: L_b = I_b * ω_b

Since the belt connecting the wheels doesn't slip, the angular velocity of both wheels is the same: ω_a = ω_b = ω.

We are given that the angular momentum is the same for both wheels, so L_a = L_b.

I_a * ω = I_b * ω

Canceling ω from both sides of the equation, we get:

I_a = I_b

Therefore, the ratio of the rotational inertias (I_a/I_b) is 1:1 or simply 1.

(b) When the two wheels have the same rotational kinetic energy:

Rotational kinetic energy is given by the equation K = (1/2) * I * ω^2.

For wheel A: K_a = (1/2) * I_a * ω_a^2

For wheel B: K_b = (1/2) * I_b * ω_b^2

We want to find the ratio of the rotational inertias, so let's rewrite the equation for kinetic energy:

K_a/K_b = (1/2) * I_a * ω_a^2 / (1/2) * I_b * ω_b^2

Canceling out the common factors, we have:

K_a/K_b = (I_a * ω_a^2) / (I_b * ω_b^2)

Since ω_a = ω_b = ω (as the angular velocity is the same for both wheels), we can simplify further:

K_a/K_b = (I_a * ω^2) / (I_b * ω^2)

Again, canceling out ω^2, we get:

K_a/K_b = I_a / I_b

Therefore, the ratio of the rotational inertias (I_a/I_b) is equal to the ratio of the kinetic energies (K_a/K_b).

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Answer:

The maximum static frictional force is 40N.

Explanation:

When an object of mass M is on a surface with a coefficient of static friction μ, there is a minimum force that you need to apply to the object in order to "break" the coefficient of static friction and be able to move the object (Called the threshold of motion, once the object is moving we have a coefficient of kinetic friction, which is smaller than the one for static friction).

This coefficient defines the maximum static friction force that we can have.

So if we apply a small force and we start to increase it, the static frictional force will be equal to our force until it reaches its maximum, and then we can move the object and now we will have frictional force.

In this case, we know that we apply a force of 40N and the object just starts to move.

Then we can assume that we are just at the point of transition between static frictional force and kinetic frictional force (the threshold of motion), thus, 40 N is the maximum of the static frictional force.

Answer:

Foil insulation can prevent radiant heat loss all year round. In summer, it can prevent heat from entering by reflecting sunlight. In winter, it can reflect heat back inside a room, keeping it warmer.

solid state has the most intermolecular force of attraction.

Answer:

they are both rocky

Explanation:

The main answer is:The volume of water displacement of the floating oil rig is 339,394 cubic feet.Explanation:A floating oil rig is anchored in the seabed with cables giving a net pull of 2,250,000 lbf down. Here is how to determine how large a water displacement volume that leads to:

Let us recall the principle of Archimedes: It states that "when an object is fully or partially immersed in a liquid, it experiences an upward force that is equal to the weight of the liquid displaced."The upward force exerted on the floating oil rig is equal to the weight of the water displaced by it, which can be determined using the following formula:Upward force = Weight of water displacedThe formula for the weight of water displaced is:Weight of water displaced = Volume of water displaced × Density of waterwhere

:Volume of water displaced = VDensity of water = ρWe know that the upward force exerted on the oil rig is equal to the net pull of the cables, which is 2,250,000 lbf down. This is also the weight of the oil rig. Therefore, we can say that:Upward force = Weight of water displaced2,250,000 lbf = V × ρ × gwhere:g = acceleration due to gravity = 32.2 ft/s² (this is the value used in the United States)ρ = density of water = 62.4 lb/ft³ (this is the value used in the United States)Solving for V:V = 2,250,000 lbf / (ρ × g)V = 2,250,000 lbf / (62.4 lb/ft³ × 32.2 ft/s²)V ≈ 339,394 ft³Therefore, the volume of water displaced by the floating oil rig is 339,394 cubic feet.

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