2. Name three types of energy that exist in a large piece of charcoal ani a grill in the sunlight
Explain why the charcoal has each type of energy

As the charge is negative, the force, which has a magnitude of 33.05 N, is directed to the left, against the electric field.

E is a symbol for the magnitude of the electric field at a specific distance from a point charge. At twice the distance from the point charge, what is the electric field's strength? The field's strength is E/2 at twice the distance. The field's strength is still equal to E at a distance that is twice as great.

E = k*q/r²

r1 = 2.00 cm

r2 = 1.00 cm + 3.00 cm = 4.00 cm

r3 = 1.00 cm

Using these distances, we can calculate the electric field due to each charge:

E1 = kq1/r1² = (9.0 x 10⁹ Nm²/C²) * (1.50 x 10⁻⁶ C) / (0.02 m)² = 168.75 N/C (to the right)

E2 = kq2/r2² = (9.0 x 10⁹ Nm²/C²) * (-2.00 x 10^⁻⁶ C) / (0.04 m)² = -112.50 N/C (to the left)

E3 = kq3/r3² = (9.0 x 10⁹ Nm²/C²) * (6.00 x 10⁻⁶ C) / (0.01 m)² = 5.40 x 10⁶ N/C (to the right)

E = E1 + E2 + E3 = 168.75 N/C - 112.50 N/C + 5.40 x 10⁶ N/C = 5.39 x 10⁶ N/C (to the right)

F = q*E

F = (-6.13 x 10 C) * (5.39 x 10⁶ N/C) = -33.05 N

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Answer: because of friction it will stop rolling completly

Explanation:

A crow flies forward and backward. Its motion is shown on the following graph of horizontal position x vs. time t.

What is the instantaneous velocity of the crow at t = 9 s?

Answer: -0.50 m/s

A crow flies forward and backward. Its motion is shown in the following graph and the instantaneous velocity of the crow at t = 9 s is -0.5 m/s.

From the figure, it shows that from t = 8sec to t = 12 sec the displacement is decreasing, so velocity will be the slope of the straight line.

The velocity is given by:

velocity = -Δx ÷ Δt

velocity = (-2) ÷ (12-8)

velocity = -2 ÷ 4

velocity = -0.5 m/s

Therefore, A crow flies forward and backward. Its motion is shown in the following graph and the instantaneous velocity of the crow at t = 9 s is -0.5 m/s.

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The amplitude of the oscillation is +0.10 m, as shown in snapshots A and E.

Oscillation refers to a repetitive back-and-forth or up-and-down motion of an object or system about an equilibrium position. This motion can be periodic or non-periodic.

The amplitude of an oscillation is the maximum displacement of the object or system from its equilibrium position during one cycle of motion. It is the distance between the equilibrium position and either the crest or trough of the wave. The amplitude determines the energy of the oscillation, with larger amplitudes corresponding to greater energy. In the context of waves, amplitude can also refer to the maximum displacement of the medium from its rest position.

Therefore, The amplitude of the oscillation is +0.10 m, as shown in snapshots A and E.

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Answer:

fog and mist are the examples

The Normal force = 302.63 N

Friction Force = 115 N

u*Normal force= friction,

u= 0.38,

N= 115/0.38

Therefore, the Normal force = 302.63 N

Mass is a fundamental feature of matter that quantifies the amount meaningful in an object. It is typically calculated in units of kilograms (kg) or grams (g). Mass is various from weight, that depends on the gravitational force pursuing an object, while mass debris constant although gravity.

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The mass of the moon is 7.35×1022Kg. Thus, the value of g on moon is g=1.625  

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The acceleration due to gravity on the surface of the Moon is approximately 1.625 m/s2, about 16.6% that on Earth's surface or 0.166 ɡ. Over the entire surface, the variation in gravitational acceleration is about 0.0253 m/s2 (1.6% of the acceleration due to gravity).

Answer:

we always put equepments on the left b gravity so it can hold on

Explanation:

so to determine it will be a gravity b side

Answer:

A. convergent boundary without subduction

Explanation:

The convergent boundary pushes together and makes the plates burst in an upward motion and creates a mountain.

Explanation:

Current can be defined as the rate of flow of electric charge along a conductor.

The frictional force involved when a penny sinks to the bottom of a wishing well is primarily due to viscous drag or fluid friction. As the penny moves through the water, it experiences resistance from the surrounding fluid. This resistance is caused by the frictional forces between the water molecules and the penny's surface.

Use the kinematics formula: \(v = v_0+at\)

Your initial velocity is 10 m/s. Your acceleration is 4 m/s². The time elapsed is 4 s. And so,

\(v=10+4(4) \\v= 26 \text{ m/s}.\)

The equation for the magnitude of the system's acceleration is a = g + (2M/m), where g is the acceleration due to gravity and M and m are the masses of the two objects.

Acceleration is the rate of change of velocity in an object over time. It is the rate of change of the speed of an object, and is defined as the change in velocity divided by the change in time. In other words, it is the rate at which an object's speed changes. Acceleration can be caused by a change in the speed of an object, or by a change in its direction. It is usually measured in meters per second squared (m/s2). Acceleration can be either positive or negative, depending on the direction of the change in velocity.

a = g + (2M/m)

a = 9.81 m/s^2 + (2(8 kg)/(3 kg)) = 13.87 m/s^2

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Answer:

 μ = 0.15

Explanation:

Let's start by using Hooke's law to find the force applied to the block

          F = k x

          F = 87.0 0.065

          F = 5.655 N

Now we use the translational equilibrium relation since the block has no acceleration

          ∑ F = 0

          F -fr = 0

          F = fr

the expression for the friction force is

          fr = μ N

if we write Newton's second law for the y-axis

          N -W = 0

          N = W = mg

we substitute

          F = μ mg

          μ = F / mg

          μ = \(\frac{5.655}{3.8 \ 9.8}\)

          μ = 0.15

The gravitational potential energy added when the velociraptor and cage is lifted from the ground to a height of 9 m is approximately 15,998.95 joules.

What is Potential Energy?

Potential energy is a form of energy that is stored in an object due to its position or configuration in a system. It is the energy that an object has the potential to possess, or the ability to do work, as a result of its position or state.

The gravitational potential energy (GPE) added when the velociraptor and cage is lifted from the ground to a height of 9 m can be calculated using the formula:

GPE = mgh

Where m is the mass of the velociraptor and cage, g is the acceleration due to gravity (approximately 9.81 m/\(s^{2}\)), and h is the height lifted.

Given that the mass of the velociraptor and cage together is 175 kg, and the height lifted is 9 m, we can substitute these values into the formula:

GPE = mgh

GPE = (175 kg) x (9.81 m/\(s^{2}\)) x (9 m)

GPE = 15,998.95 J (joules)

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Answer: 12,339

Explanation:

The instantaneous velocity of the car at t = 5.0 s is -3 m/s. The negative sign indicates that the car is moving in the opposite direction from the traffic light at that moment.

Instantaneous velocity is the velocity of an object at a specific point in time. It is the rate of change of the object's position at that particular moment, and it is represented by the derivative of the object's position with respect to time. Instantaneous velocity is a vector quantity, meaning it has both magnitude and direction. It can be determined by taking the limit of the average velocity as the time interval approaches zero. It is also the limit of the average acceleration when the time interval approaches zero.

This can be found by taking the derivative of the equation \(x(t) = bt2 − ct3\)with respect to t. The derivative of this equation is \(v(t) = 2bt - 3ct^2.\)Plugging in the given values of b and c, and evaluating the equation at t=5.0s gives the instantaneous velocity of the car.

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Answer:

c.8

Explanation:

Given that the initial velocity is

The acceleration is a = 0.4 m/s^2.

The time is t = 3.6 s.

We have to find the final velocity.

The formula to find the final velocity is

Substituting the values,

Thus, the final velocity is 2.19 m/s.

Answer:

True statements a, b, and c

Explanation:

Answer d is false because in any collision, each object receives the same impulse. Also the momentum of car 1 is mv, while the momentum of car 2 is 0.5m(1.5v) = 0.75mv

The impulse of collision of cars depends on the mass and velocity of the cars. The statements which are true about the car collisions are option a, b, c.

Impulse is a physical quantity expressed as the product of force and time. The change in momentum mΔV is numerically equals to the impulse F t.

If two identical cars with identical speeds collide head on, the magnitude of the impulse received by each car and each driver is the same as if one car at the same speed had collided head on with a concrete wall. Because they have equal mass and velocity.

The bigger acceleration is experienced by the one which have lighter mass thus car 1 with lower mass experience higher acceleration .

The essential safety benefit of crumple zones (parts of the front of a car designed to receive maximum deformation during a head-on collision) is due to their absorbing kinetic energy.

Converting this energy into deformation, and lengthening the effective collision time, thus reducing the average force experienced by the driver.

The momentum change is proportional to the velocity. The one which have higher velocity is having the higher momentum. Thus car 2 have higher velocity. Thus option d is false.

Therefore, the statements which are true are a, b and c.

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The arrows are drawn in the figure which shows gravitational forces on each person on earth.

Gravitational force is force of attraction between two masses. Gravitational force(F) between two bodies is directly proportion to the product of masses(m₁,m₂) of two bodies and inversely proportional to square of distance(r) between them. mathematically it is written as,

F∝ m₁.m₂

F ∝ 1/r²

F = G m₁,m₂÷r²

where G is gravitational constant, whose value is 6.6743 × 10⁻¹¹ m³ kg-1s⁻².

Force is expressed in Newton N in SI unit. its dimensions are [M¹L¹T⁻²].

This is analogous with coulomb's law which gives force between two charges.

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Answer:

slowly decreases from left to right over the duration of the element.

Phobos 1 was an uncrewed Soviet space probe of the Phobos Program launched from the Baikonur launch facility on 7 July 1988. Its intended mission was to explore Mars and its moon Phobos and Deimos.

Mars Pathfinder was the first-ever robotic rover to the surface of the red planet Mars. The Opportunity was the second of the two rovers launched in 2003. There are lots of asteroids in our solar system. Most of them are located in the main asteroid belt- a region between the orbits of Mars and Jupiter. The Trojan asteroids are affected by Jupiter's gravity.

The lowest gravitational potential energy of a system of particles is achieved when they form a sphere as opposed to a disk. This is why many smaller objects like asteroids and even Mars's two moons are shaped like lumpy boulders and so is our moon also spherical in shape.

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Answer:

The work done is 13680.8 J.

Explanation:

The work done can be calculated as follows:

\( W = F*d \)              

Where:            

F: is the force                                                        

d: is the displacement = 40 m                                    

The force acting on the boulder is given by:

\( F = mgsin(\theta) \)

Where:

m: is the mass = 100 kg

g: is the acceleration due to gravity = 10 m/s²

θ: is the angle = 20°      

Then, the work is:

\( W = mgsin(\theta)d = 100 kg*10 m/s^{2}*sin(20)*40 m = 13680.8 J \)

Therefore, the work done is 13680.8 J.  

I hope it helps you!  

The factors that affect the viscosity of magma include temperature, crystal and rock fragments (composition), and the different dissolved gases.

It is a mixture of solid, volatile and liquid materials.

Therefore, we can conclude that the fluidity or viscosity of magma depends on its chemical composition and, in particular, the liquids and solids that the magma contains and the various gases dissolved in it.

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Answer:

Aluminum

Explanation:

promise

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Answer:aluminum

Explanation:

To better understand crash dynamics we have to look at "the laws of motion."

The laws of motion

The laws of motion were introduced by Sir Isaac Newton in 1687 in his book Philosophiæ Naturalis Principia Mathematica ("Mathematical Principles of Natural Philosophy"), which defined the laws of motion, or three fundamental laws that govern the movement of bodies. The laws of motion, according to Newton, govern the motion of an object or a system of objects that interact.

It defines the concepts of force and mass, and the fundamental dynamics of motion.The following are the laws of motion:Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. The velocity of an object changes proportional to the force applied to it, and the acceleration of an object is proportional to both its force and its mass. For every action, there is an equal and opposite reaction.

Therefore, these laws are necessary to fully grasp crash dynamics because they explain how objects respond to outside forces that cause them to accelerate or decelerate.

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Answer:

net force

Explanation:

net force is the total amount of force exerted on an object.