A copper block with an initial temperature of 13oC is dropped into 539g of water initially at 70oC, and they reach an equilibrium temperature of 64oC. Determine the mass of the copper block

The amount of geothermal energy reaches Earth’s surface in one day is approximately 4.32e18 joules.

To estimate the geothermal energy reaching Earth's surface in one day, we'll first convert the given flow of energy (50 terawatts) into joules per second, and then multiply by the number of seconds in a day.

1 terawatt = 1e12 joules/second
50 terawatts = 50 x 1e12 joules/second

There are 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute, so there are 24 x 60 x 60 seconds in a day:

86,400 seconds/day

Now we can multiply the energy flow rate by the number of seconds in a day:

50 x 1e12 joules/second x 86,400 seconds/day = 4.32e18 joules/day

So, approximately 4.32e18 joules of geothermal energy reach Earth's surface in one day.

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Given data:

* The change in gravitational potential energy is 26500 J.

* The change in height of the diver is 33.0 m.

Solution:

The change in gravitational potential energy in terms of change in height of the diver is,

where m is the mass of diver, g is the acceleration due to gravity, dh is the change in height, and dU is the change in gravitational potential energy,

Substituting the known values,

The weight of the diver is,

Thus, weight of the diver is 803.03 N.

Answer:

I do I make a brinliest can you please can me

Answer:

A pair of scales

Explanation:

Option A - low mass, small radius, low temperature: condition describes the  planet that would be least likely to have an atmosphere.

The presence of an atmosphere on a planet depends on several factors, including the planet's mass, radius, and temperature. Let's evaluate each option:

a. low mass, small radius, low temperature:

A low mass and small radius indicate a relatively small and less massive planet.

Additionally, a low temperature suggests that the planet is unable to retain heat effectively.

As a result, the gravitational force on this planet would be weak, making it difficult for the planet to hold onto an atmosphere.

The low temperature would also inhibit the ability to sustain gases in a gaseous state.

b. large mass, large radius, high temperature:

A large mass and radius suggest a massive planet with a strong gravitational force.

In this case, it would be easier for the planet to retain an atmosphere due to the higher gravity.

The high temperature indicates that gases would have more energy, increasing the likelihood of them being in a gaseous state.

c. low mass, large radius, high temperature:

A low mass combined with a large radius indicates a relatively low density planet.

Although it has a large radius, the weak gravitational force resulting from the low mass would make it challenging for the planet to hold onto an atmosphere.

The high temperature would increase the energy of gases, making it more likely for them to escape into space.

d. large mass, large radius, low temperature:

A large mass combined with a large radius suggests a massive planet with a strong gravitational force.

Consequently, it would be easier for the planet to retain an atmosphere due to the higher gravity.

The low temperature would reduce the energy of gases, making it less likely for them to escape into space.

Based on the factors discussed above, the planet described in option A - low mass, small radius, low temperature - would be least likely to have an atmosphere.

The weak gravitational force resulting from its low mass, along with the low temperature, would make it difficult for the planet to retain gases in a gaseous state and hold onto an atmosphere.

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Answer:

once a week

Explanation:

once a week so answer B

Answer:

B-Once a week

Explanation:

You answer is B-Once a week

Answer:

Speed of sound ways in railroad = 6,135.8 m/s

Explanation:

Given:

Distance cover by sound wave = 2,350 meter

Time taken by sound wave to cover distance = 0.383 seconds

Find:

Speed of sound ways in railroad

Computation:

Speed = Distance / Time

Speed of sound ways in railroad = Distance cover by sound wave / Time taken by sound wave to cover distance

Speed of sound ways in railroad = 2,350 / 0.383

Speed of sound ways in railroad = 6,135.77

Speed of sound ways in railroad = 6,135.8 m/s

Answer:

it's mass

Explanation:

A star's life cycle is determined by its mass. The larger its mass, the shorter its life cycle. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.

The force of friction is 78.4 N

What is force of friction?

Frictional force is the force created when two surfaces come into contact and slide against each other. it is given by the equation:

\(F_{f} =\) μ * \(F_{n}\)

where,

\(F_{f}\) = force of friction

μ = coefficient of friction

\(F_{n}\) = normal force

Given,

μ \(= 0.10, m = 8.0 kg\)

We know,

\(F_{n} = mg\)

\(F_{n} = 8.0 * 9.8\\\\ F_{n} = 78.4 N\)

Subsituing the values in equation:

\(F_{f} =\) μ * \(F_{n}\)

\(F_{f} = 0.10 * 78.4 \\\\F_{f} = 7.84 N\)

The force of friction is 78.4 N.

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Answer:

The mass of an object affects gravity.

Explanation:

Answer:

The mass of an object affects gravity.

Explanation:

Answer:

Doors, Windows & Ventilator is a part of building component which is allow to Air & light move & circulate inward & outward, with in door Human or any other material can be move inside or outside also. here types of doors & windows & ventilation are given with necessity of location, function etc.

Window ventilators are used for ensuring a supply of fresh air from the outside into the interior. They are used in rooms with natural ventilation, mechanical extract ventilation or hybrid ventilation. ... It automatically adjusts the inflow of fresh air depending on the level of relative humidity in the room.

Explanation:

If the mass and post-collision speed of block 1 is known, the momentum of the block 2 can be determined.

The momentum of an object in motion is the product of mass and speed of the object.

P = mv

The principle of conservation of linear momentum states that, the sum of the initial momentum must be equal to the sum of the final momentum.

\(m_1v_1 = m_2 v_2\)

Thus, if the mass and post-collision speed of block 1 is known, the momentum of the block 2 can be determined.

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A moving object's momentum is calculated by multiplying its mass by its speed. P = mv, momentum in a line is conserved. According to the conservation of linear momentum principle, the starting and final momentum must add up to the same amount.

Thus, A team that is genuinely moving forward and gaining momentum will be challenging to stop.

According to the conservation of linear momentum principle, the starting and final momentum must add up to the same amount.

The definition of momentum is "mass in motion." Since every item has mass, if it is moving, it must have momentum because its mass is in motion.

Thus, A moving object's momentum is calculated by multiplying its mass by its speed. P = mv, momentum in a line is conserved. According to the conservation of linear momentum principle, the starting and final momentum must add up to the same amount.

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Answer:

first you need to convert unit into metres and then continue with calculation

Answer: 376.2 nm

Explanation:

The equation for single slit diffraction is \(wsin(\theta)=m\lambda\) (w is width of slit, \(\theta\) is the angle of the fringe of concern to the slit, m is a number based on the type of fringe it is, and \(\lambda\) is the wavelength of the light)

The distance between the slit and the wall is given, and the distance between the fringes of destructive interference that are next to the central bright spot is also given.

Thus, trigonometry can be used to find the angle of one of the fringes of destructive interference of concern to the slit.

The distance between the central bright fringe and a fringe of destructive interference next to the central bright fringe is \(\frac{3.10*10^{-3}}{2}=1.55*10^{-3}\) meters.

Thus, \(tan(\theta)=\frac{1.55*10^{-3}}{2.06}\), which then means that \(\theta=tan^{-1}(\frac{1.55*10^{-3}}{2.06})=0.0431\) degrees.

We know the width of the slit.

Since the fringe of destructive interference is next to the central bright fringe, the value of m is 1. m = 1,2,3,... for destructive interference fringes and m=1/2,3/2,5/2,... for constructive interference fringes. m increases by 1 for every successive constructive or destructive fringe that gets further from the central bright fringe.

Plugging into the equation gives \(5*10^{-4}*sin(0.0431)=1*\lambda\).

Rearranging the equation gives \(\lambda=5*10^{-4}*sin(0.0431)=3.762*10^{-7}\) meters.

Converting to nanometers gives \(\lambda=3.762*10^{-7}*10^9=376.2\) nanometers.

Explanation:

hope this helps you...........

The magnetic flux through the loop when the plane of the loop is perpendicular to the magnetic field is 0.0256 Weber.

The magnetic field is the region of space where a charged object experiences magnetic force when it is moving.

The formula for magnetic flux is given as;

φ = BAcosθ

Given, a rectangular loop of wire that can rotate about an axis through its center is placed between the poles of a magnet in a magnetic field with a strength of 0.40 T. The length of the loop L is 0.16 m and its width w is 0.040 m.

Area of the loop = L x w

                        A  = 0.16 x 0.040 m

                         A = 0.0064 m²

So, flux will be

φ = 0.4 x  0.0064 x cos90°

φ = 0.00256 Wb

Thus, magnetic flux through the loop when the plane of the loop is perpendicular to the magnetic field is 0.0256 Weber.

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lan can decrease the magnetic force on the washers by increasing the distance between the magnet and the pile of metal washers.

A material or object that creates a magnetic field is called a magnet.

The most noteworthy characteristic of a magnet, a force that pulls on other ferromagnetic elements like iron, steel, nickel, cobalt, etc., as well as the ability to attract or repel other magnets, is caused by this invisible magnetic field.

The strength of the magnetic force produced by a magnet increases when the distance between the magnet and an object experiencing the magnetic force is reduced.

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Answer:

Total resistance in parallel is 1.2703136679494.

Total resistance in series is 155.Total resistance in series is 155.

Explanation:

Answer:

P = I V = I^2 R

R = 150 + 300 = 450 Ω

I = 150 / 450 = .333 amps

P(150) = .333^2 * 150 = 16.7 W

The-ratio of their gravitational potential energy is \(1:2\). The unit of measurement for any and all types of energy, which would include kinetic and potential energy, is kilograms per square second, or kg*m2/s2 (J).

Height \(H_{1} = h\)

Height \(F_{2} = 2h\)

Mass of body 1 = m

Mass of body 2 = m

Gravitational potential energy of body  \(1 = mgH 1 =mgh\)

Gravitational potential energy of Body 2 \(= mgH 2 =mg(2h)\).

Ratio of gravitational potential energies

\(=\frac{mgh}{mg (2h)} =\frac{mgh}{2mgh} =\frac{1}{2} = 1:2\)

What Unit of Measurement Is Potential Energy in?

Due to the fact that energy and work quantify identical types of force, the Joule is indeed the proven scientific measurement device for either of those.

How do you calculate kinetic energy?

K E = 1 2 m v 2 is the formula for kinetic energy. When m denotes the body's weight as well as v denotes its velocity, KE stands for kinetic energy.

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Answer:

Explanation:

Thus, total 4+4=8 C atoms are present per unit cell of diamond. Carbon has an electronic arrangement of 2,4. In diamond, each carbon shares electrons with four other carbon atoms - forming four single bonds.

Answer:

The answer is B

Explanation:

When inflation increases, the cost of goods increases. The correct option is B.

Generally speaking, inflation raises the price of products sold. The price of producing and purchasing those things rises together with the prices of goods and services owing to inflation.

This can be attributable to elements like escalating manufacturing costs, rising input costs, and shifting dynamics of supply and demand.

As a result, companies might need to modify their pricing plans to take inflation-related cost increases into account, the cost of goods typically increases when inflation occurs.

Thus, the correct option is B.

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a. Susan will feel a larger force than Bill

b. After Bill stops pushing, Susan will move faster.

Bill has more inertia value than Susan. With the same force applied, Bill will easier to push Susan because Susan's weight is 3 times smaller than Bill's.

Force is the action of pushing or pulling applied to objects. The value of force depends on the mass and acceleration of objects. It can be written as

F = m . a

where F is force, m is mass and a is acceleration.

In the same force, Bill's weight is 3 times larger than Susan's. Hence, Bill's acceleration will 3 times smaller than Susan's and it will make Susan move faster.

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The total resistance of the RLC series circuit is determined as 20 ohms.

The total resistance of the RLC series circuit is calculated as follows;

R = Vrms / Irms

where;

Substitute the given parameters and solve for the total resistance

R = (180) / (9)

R = 20 ohms

Thus, the total resistance of the RLC series circuit is determined as 20 ohms.

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A series RC circuit that receives its power from a DC source will experience transient phenomena when the circuit closes.

Therefore, it follows that the current flow is not constant over time. Beginning high and falling off exponentially, it eventually reaches zero. The current will be (V/R) x (1/e) at the moment when t=RC. The greatest current value is V/R.

1/e is roughly equal to 0.37.

Therefore, RC is the period of time in a series RC circuit during which the current will decrease to about 37% of its maximum value.

To obtain the necessary current vs. time characteristic, etc., the appropriate value of R and C is chosen based on the needs of the electronic circuit.

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Answer:

A volcanic "hotspot" is an area in the mantle from which heat rises as a thermal plume from deep in the Earth. High heat and lower pressure at the base of the lithosphere (tectonic plate) facilitates melting of the rock. This melt, called magma, rises through cracks and erupts to form volcanoes.

Answer:

true

Explanation:

Series resistors are additive

r1 + r2 + r3 = r total    the total will always be greater than any one of the parts

When two objects are traveling in a circular orbit. The centripetal acceleration of object A is twice that of object B.

Centripetal acceleration is the acceleration of the body that travels in a circular motion. Any object that moves in the circular path and its vector is towards to the center is called as Centripetal acceleration. It is obtained by the ratio of the velocity square and the radius of the circle.

From the givens,

Object A moves with the velocity twice that of Object B and the diameter of  the circle moves by object A is twice that of the diameter of circle moves by object B. Acceleration (a) = v² / r.

Object B's acceleration, a =  v² / 2r ( diameter d = 2r)

Object A's acceleration, a = (2v)² / (2r)

                                           =  4/2 (v²/ 2r)

                                           = 2 (v²/ 2r).

Thus, the object A's acceleration is twice that of acceleration of object B.

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The necessary battery bank for the residents of a remote village without grid electricity and wants to use solar power to pump underground water is 9 batteries

The details about requirements and battery are as follows:

Energy provided by battery = 12 * 225

Energy provided by battery = 2700 Wh

Since DOD is only 80 %, the battery will only provide 80 % of power.

Actual energy provided by battery = 2700 * 0.8

Actual energy provided by battery = 2160 Wh

Total energy needed in a day = 1080 * 18

Total energy needed in a day = 19440 Wh

Number of batteries required = 19440 / 2160

Number of batteries required = 9

Therefore, the necessary battery bank is 9 batteries

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Answer:

g = 1.25m/s²

Explanation:

Given the following data;

Mass = 5kg

Height = 6m

Gravitational potential energy = 24J

To find the acceleration due to gravity;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

\( P.E = mgh\)

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

GPE = mgh

Substituting into the equation, we have;

24 = 5*6*g

24 = 30g

g = 30/24

g = 1.25m/s²

Therefore, the acceleration due to gravity on Planet X is 1.25m/s².

Answer:

g=0.8m/s^2

Explanation:

M=5kg

h=6m

GPE=24J

GPE=Mgh

g=GPE/Mh

g=24J/(5kg)(6m)=0.8

g=0.8m/s^2

An object's centre of mass must be surrounded by an equal amount of mass on both sides. It is untrue.

The centre of mass of an item typically, but not always, sits within the thing itself. For instance, a ball's centre of mass is located in its exact centre, while a book's centre of mass is located in its middle.

When two objects of equivalent mass and speed approach one another, they stay together. After staying together, the two surfaces come to rest while retaining motion but losing kinetic energy. several of the energy of motion gets converted to thermal energy, or heat.

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Answer:

Approximately \(2.8\; {\rm m\cdot s^{-1}}\).

Explanation:

If an object of mass \(m\) is travelling at a velocity of \(v\), the momentum \(p\) of that object would be \(p = m\, v\).

Momentum before collision:

Total momentum before collision:

Momentum after collision:

Momentum is conserved immediately before and after collisions. Hence, the total momentum of the two masses after the collision would be equal to the sum of their momentum before the collision, \(54\; {\rm kg \cdot m\cdot s^{-1}}\).

Subtract the momentum of the \(4.5\; {\rm kg}\) mass after the collision from the sum of momentum after the collision: \(54\; {\rm kg \cdot m\cdot s^{-1}} - 36\; {\rm kg \cdot m \cdot s^{-1}} = 18\; {\rm kg \cdot m \cdot s^{-1}}\).

Hence, the momentum of the \(6.5\; {\rm kg}\) mass after the collision would be \(18\; {\rm kg \cdot m \cdot s^{-1}}\). The velocity of this mass would be:

\(\begin{aligned}v &= \frac{p}{m} \\ &= \frac{18\; {\rm kg\cdot m \cdot s^{-1}}}{6.5\; {\rm kg}} \approx 2.8\; {\rm m\cdot s^{-1}}\end{aligned}\).