Earlier we discussed the concept of isostasy, where lower density rocks rise higher than higher density rocks. How is the variation of water depth at spreading centers (ridges) controlled by isostasy

Answer:

The GPE, stored is 640 Joules

Explanation:

The given parameters are;

The given mass of the astronaut, m = 80 kg

The height of the top of the lunar lander to which the astronaut climbs, h = 5 m

The gravity strength on the moon, g = 1.6 N/kg

The Gravitational Potential Energy, GPE, stored is given according to the following equation;

GPE stored = m·g·h

Therefore, by substituting the known values, we have;

GPE Stored = 80 kg × 1.6 N/kg × 5 m = 640 Joules

The GPE, stored = 640 Joules.

Explanation:

Need the mass of the copper.....

  but here is the amount needed per gram

          (60 - 55)C *  . 385 J / g C  = 1.925 J / gram

    if you have the mass of copper....multiply by this number to get the J required to heat it from 55 to 60 °c

Newton's second law allows us to find that the correct answer is:

   A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.

Newton's second law gives a relationship between force and the product of mass and acceleration of the body

          F = m a

Where F is the force, m the mass and the acceleration of the body.  The bold indicate vectors

The baseball ball is a solid body that has a fixed mass, therefore the pitcher uses different forces in the arm, the acceleration must change proportionally, as the force increases, the acceleration must increase (fastball).

Let's review the different claims

A) true. These statements are in accordance with Newton's second law

B) False. If the force changes any of the other two parameters must change

C) false. Force and acceleration are proportional

D) False. When the ball is in the air it is subjected to the acceleration of gravity

With Newton's second law we find that the correct answer is:

   A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.

Learn more about Newton's second law here

https://brainly.com/question/19860811

Answer:

OPEN

Explanation:

Answer:

a computer is a open system

Answer:

I think it is A or D

Explanation:

can I get Brainlest if one of them is right

For the myopic eye, the power of the corrective contact lenses required is -0.000286 diopters.

To determine the power of corrective contact lenses required for a hyperopic (farsighted) eye, we need to calculate the difference between the far point and the desired reading distance.

For a hyperopic eye, the near point is farther away than the desired reading distance. In this case, the near point is given as 60.0 cm, and the desired reading distance is 25 cm.

The power of the corrective contact lenses is given by the reciprocal of the difference between the near point and the desired reading distance:

Power = 1 / (near point - desired reading distance)

Substituting the values:

Power = 1 / (60.0 cm - 25 cm)

Power = 1 / (35.0 cm)

Power = 0.0286 cm^(-1)

To convert the power to diopters, we can divide by 100:

Power = 0.0286 / 100 diopters

Hence, the power of the corrective contact lenses required for the hyperopic eye is 0.000286 diopters.

For a myopic (nearsighted) eye with a far point of 60.0 cm, the procedure is similar:

Power = 1 / (far point - desired reading distance)

Power = 1 / (60.0 cm - 25 cm)

Power = 1 / (35.0 cm)

Power = 0.0286 cm^(-1)

To convert the power to diopters, we divide by 100:

Power = 0.0286 / 100 diopters

However, since the eye is myopic, the power will be negative:

Power = -0.000286 diopters

Therefore, for the myopic eye, the power of the corrective contact lenses required is -0.000286 diopters.

To learn more about lenses click here

https://brainly.com/question/32156996

#SPJ11

Answer:  A Battery contains chemical energy which transfers electrical energy into the phone, powering it and also transferring Light energy, Sound energy and Heat energy.

Explanation:

The riders on the fairgrounds ride will experience a centripetal acceleration equivalent to 2.50 times the acceleration due to gravity at a rate of X revolutions per minute.

The centripetal acceleration experienced by the riders can be calculated using the formula:

centripetal acceleration = (velocity squared) / radius

Since the riders are moving in a horizontal circular path with a radius of 6.00 m, we need to find the velocity at which they are traveling. The velocity can be determined by multiplying the circumference of the circular path by the number of revolutions per minute (rpm) and converting it to meters per second (m/s).

The circumference of a circle is given by 2πr, where r is the radius. In this case, the circumference is 2π(6.00 m). To convert from revolutions per minute to seconds, we divide by 60. Therefore, the velocity can be calculated as:

velocity = (2π * 6.00 m * X rpm) / 60

Now, we can substitute this velocity value into the centripetal acceleration formula:

centripetal acceleration = ((2π * 6.00 m * X rpm) / 60)² / 6.00 m

Given that the magnitude of the centripetal acceleration is 2.50 times the acceleration due to gravity (9.8 m/s²), we can write the equation:

2.50 * 9.8 m/s² = ((2π * 6.00 m * X rpm) / 60)² / 6.00 m

Simplifying and solving for X, we can determine the number of revolutions per minute (rpm) at which the riders will experience the specified centripetal acceleration.

Learn more about centripetal acceleration

brainly.com/question/13380934

#SPJ11

Given a radius of 6m and the subjected centripetal acceleration being 2.5 times the acceleration due to gravity (g = 9.8 m/s²), the velocity of the ride is found to be about 12.06 m/s. This equates to approximately 19.2 revolutions per minute.

The subject of this problem is centripetal acceleration in circular motion, such as a fairground ride. The centripetal acceleration is given by the equation ac = v² / r , where 'v' is the velocity and 'r' is the radius of circular motion. However, because we need to relate the centripetal acceleration to gravity (ac = 2.5g), the equation becomes 2.5g = v² / r . The acceleration due to gravity is approximately 9.8 m/s².

Substituting in the given radius and acceleration due to gravity values, we get 24.5 m/s² = v²/6m. Solving for 'v', we find the speed to be approximately 12.06 m/s.

We are however asked for the speed in revolutions per minute (rpm). To get this, we need to convert the speed from m/s to rpm. We know the circumference of the circular path (2πr), so the speed in revolutions per second is v/(2πr) = 12.06 m/s / (2π×6m) = approximately 0.32 revolutions per second. To convert to minutes, multiply by 60 to give approximately 19.2 revolutions per minute.

https://brainly.com/question/34218083

#SPJ12

The radius of gyration is a measure of how spread out the mass of an object is from its center of rotation.

The radius of gyration is a physical property of an object that describes the distribution of its mass around its axis of rotation. It is the distance from the axis at which all of the object's mass could be concentrated without changing its moment of inertia. In other words, it is a measure of how far the object's mass is spread out from its center of rotation.

The larger the radius of gyration, the more spread out the object's mass is, and the harder it is to rotate. The radius of gyration is commonly used in engineering and physics to analyze the behavior of rotating objects, such as a rotating shaft or a spinning top.

To know more about the radius of gyration, here

brainly.com/question/1616158

#SPJ4

Answer: it is actually B. :)

Explanation:

Noise can distort analog signals making them unreliable.

Noise can actually bury, distort or cause interference to the analog signal carrying the intelligent information.

Hence, the correct answer is B.

To know more about Noise here

https://brainly.com/question/21988943

#SPJ2

Explanation:

If acceleration points in the same direction as the velocity, the object will be speeding up. The acceleration points in the same direction as the velocity if the car is speeding up, and in the opposite direction if the car is slowing down.

Answer

As the angle of incidence increases in Figure 2.8, a point is finally reached where the refracted ray does not emerge at the second layer but lie along the interface. This particular angle of incidence at which the angle of refraction is 90° and the refracted ray lies along the interface is known as the critical angle. At and beyond the critical angle, there is no transmitted ray and therefore a very high reflected ray will be recorded .

Therefore,

sinθisin90=Vp1Vp2

But, sin 90 = 1.

At critical angle,

sinθcritical=Vp1Vp2

A critical refracted wave travels along the interface between layers and is refracted back into the upper layer at the critical angle. The waves refracted back into the upper layer are called head waves or first-break refractions because at certain distances from a source, they are the first arriving energy. Recorded first-break refraction is shown in Figure 2.10.

Note that these first-break refractions can give us important information about the shallow velocities on land seismic data.

Note also that seismic data are acquired in such a way that reflections from horizons of interest are in the pre-critical region, even at the farthest offset in the data.

In reality, part of the seismic energy arriving at an interface is transmitted and refracted, and another part of the energy is reflected at that same interface. Given that there are many reflectors in the subsurface, there will be many paths from source to receiver, each of them with a different travel time. The proportion of energy reflected depends on the material properties of the two bounding layers and on the angle of incidence

The reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

Given that the mass of a person is 60.0 kg and the elevator accelerates upwards with an acceleration of 4.90 m/s², we have to determine the reading on the scale.

Let F be the force exerted by the scale on the person. Then, by Newton's second law of motion, the net force acting on the person is Fnet= m * a

where m = 60.0 kg is the mass of the person and a = 4.90 m/s² is the acceleration of the elevator. Hence, the net force acting on the person is given by;

Fnet = 60.0 kg * 4.90 m/s²

Fnet = 294.0 N

Therefore, the scale reading is equal to the force exerted by the scale on the person. Since the elevator is accelerating upwards, the force exerted by the scale on the person is greater than the weight of the person, which is the force of gravity acting on the person.

The force of gravity acting on the person is given by;

Fg = m * g, where g = 9.81 m/s² is the acceleration due to gravity. Hence, the force of gravity acting on the person is given by;

Fg = 60.0 kg * 9.81 m/s²Fg = 588.6 N

Therefore, the scale reading is given by the sum of the force of gravity acting on the person and the net force acting on the person;

F = Fg + Fnet

F = 588.6 N + 294.0 N

F = 882.6 N

Thus, the reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

Learn more about acceleration at: https://brainly.com/question/25876659

#SPJ11

Answer:

The North Pole.

Explanation:

According to the Lenz's law of electromagnetic induction, an induced elemagnetic force tends to give rise to the current. In reaction, this current's magnetic field try to oppose any replacement in the magnetic flux.

So,  as per the law of Lenz's electromagnetic induction, when the current passes in a coil in anti-clockwise direction, this will produce the opposite end of the coil in the north pole.

So, the correct answer is north pole.

As we go down the earth, we are moving towards the centre of the earth therefore the distance between us and center of the earth reduces and hence there is reduction in force acting on us by earth i.e gravity.

Answer:

6.68 km

Explanation:

distance = speedxtime

45.8 x 146

6686.6 m

Answer:

trasvere wave

Explanation:

first one

Answer:

\( \boxed{\sf Acceleration \ of \ the \ car = -5 \ m/s^2} \)

Given:

Initial speed (u) = 30 m/s

Final speed (v) = 20 m/s

Time taken (t) = 2s

To Find:

Acceleration (a) of the car

Explanation:

From equation of motion we have:

\( \boxed{ \bold{v = u + at}}\)

By substituting value of v, u & t in the equation we get:

\(\sf \implies 20 = 30 + a(2) \\ \\ \sf \implies 2a + 30 = 20 \\ \\ \sf \implies 2a = 20 - 30 \\ \\ \sf \implies 2a = - 10 \\ \\ \sf \implies a = - \frac{10}{2} \\ \\ \sf \implies a = - 5 \: m {s}^{ - 2} \)

\( \therefore\)

Acceleration (a) of the car = -5 m/s²

Answer:

72kJ

Explanation:

The formula of kinetic energy is as said:

\(KE = \frac{1}{2} mv\) or, \(K = \frac{p^{2} }{2m}\) where \(P = m * v\)

Given that m = 1,000kg and v = 12,000kg, we have:

K = (12,000)² / 2(1,000)

K = 72,000 J or, K = 72 kJ.

The electric potential energy of the three quarks is equal to the product of the charges of the quarks divided by 200, multiplied by the constant \(\frac{1}{4\pi\epsilon_0}\).

Potential energy is a kind of energy that depends on the relative positions of different system components.

The electric potential energy of three quarks with a separation distance of 200 m is given by the equation

\(U = \frac{1}{4\pi\epsilon_0} \frac{q_1q_2}{r}\)

where \(q_1\) and \(q_2\) are the charges of the quarks and r is the distance between them.

In this case, since all three quarks have the same distance, r is 200 m, and the electric potential energy is calculated as:

\(U = \frac{1}{4\pi\epsilon_0} \frac{q_1q_2}{200}\)

For similar question on potential energy

https://brainly.com/question/1242059

#SPJ11

Answer:

Probably because he knows that you are with him and it is soothing to him.

Because he is a ferret and ferrets are crazy.

Explanation:

If the floor were not frictionless, the sphere's angular speed would change and increase until the sliding between the sphere and the floor came to an end. As a result, correct option is C.

When something moves over or rolls over another solid object, there is friction. Even though friction force can be advantageous, such as the traction needed to move without slipping, they also present a sizable amount of resistance to motion.

Friction between alloys appears to be primarily caused by the attraction forces, also called as stickiness, between the contact zones of the surfaces, which are always microscopically unequal. As the defects of the rough surface rub up against the softer surface, the "welded" seams are torn apart and friction is produced.

To know about angular speed, visit:

https://brainly.com/question/16407861

#SPJ4

The complete question is:

A solid sphere is placed on a frictionless floor in a very long corridor and is given a quick push so that it begins to slide, without rotating, along the corridor. How would the angular speed of the sphere be changing if the floor were not frictionless?

A.) It would remain zero because the net torque is still zero.

B.) It would remain zero because the angular momentum is conserved.

C.) It would be increasing until the slipping between the sphere and the floor stops.

D.) It would be increasing until the linear and the angular speeds become equal.

E.) It would be increasing until the translational motion stops.

Answer:

Heat is radiated, atmospheric moisture condenses at a rate greater than that at which it can evaporate, resulting in the formation of water droplets.

Explanation:

Dew forms on blades of grass as the temperature of the grass drops below the dew point temperature, causing water vapor in the air to condense into liquid water droplets on the cooler surface of the grass.

Kinetic Energy and Thermal Energy:

Kinetic Energy:

Kinetic energy is the energy possessed by an object due to its motion. It depends on both the mass of the object and its velocity. The formula for kinetic energy is KE = 1/2 * mass * \(velocity^2\). As an object moves faster or its mass increases, its kinetic energy also increases.

Thermal Energy:

Thermal energy, also known as heat energy, is the total energy of the particles (atoms and molecules) in a substance. It includes both the kinetic energy of the particles' random motion and the potential energy of their interactions. The temperature of a substance is a measure of the average kinetic energy of its particles. As the temperature of a substance increases, the average kinetic energy of its particles also increases, leading to higher thermal energy.

Effect of Increasing Temperature on Kinetic Energy and Thermal Energy:

When the temperature of a substance increases:

The average kinetic energy of its particles increases.

The kinetic energy of individual particles increases, resulting in faster molecular motion.

The thermal energy of the substance increases due to the collective increase in kinetic energy of its particles.

Formation of Dew on Blades of Grass:

Dew forms on blades of grass due to a process called condensation. Condensation occurs when water vapor in the air comes into contact with a surface that is at a lower temperature, causing the water vapor to change from its gaseous state to a liquid state.

At night, the Earth's surface loses heat through radiation, and this cooling effect reduces the temperature of the grass blades and other objects on the ground. As the temperature of the grass drops below the dew point temperature, which is the temperature at which the air becomes saturated with water vapor, water vapor in the surrounding air begins to condense into tiny water droplets on the surface of the grass blades.

The formation of dew is more common on clear, calm nights when there is less heat retained by the atmosphere and the ground radiates more heat. Dew can also form when the relative humidity is high, as the air already contains a significant amount of water vapor, making it more likely to reach the dew point temperature.

Hence, dew forms on blades of grass as the temperature of the grass drops below the dew point temperature, causing water vapor in the air to condense into liquid water droplets on the cooler surface of the grass.

To know more about Dew forms here

https://brainly.com/question/10227806

#SPJ2

A battery-operated power tool, such as a cordless drill, converts electrical energy stored in the battery into mechanical energy through the use of a motor.

The battery, typically a lithium-ion or nickel-cadmium type, supplies the necessary voltage and current to the motor. As electricity flows through the motor's coils, it generates a magnetic field that interacts with permanent magnets, creating rotational force (torque) to turn the drill bit or drive a screw. The conversion of electrical energy to mechanical energy allows for enhanced portability and convenience, eliminating the need for a power cord and enabling users to work in a wide range of locations. Cordless drills often come with variable speed settings and torque adjustments, providing greater versatility and control for various tasks.

To know more about electrical energy  visit :-

https://brainly.com/question/16182853

#SPJ11