What volume of silver metal will weigh exactly 2500. 0 g. The density of silver is 10. 5 g/cm3.

Answer:

=2 000 000 Litres

Explanation:

Density=mass/volume

1000kg/m^3=0.50×Volume

Volume=2000m^3

apparently I searched it up and

1m^3=1000 litres.

We know that the energy of electromagnetic radiation is given by:

where E is the energy, h is Planck's constant and f is the frequency. Before we can use this formula we need to convert the amount of energy given to J so let's do that:

Now that we have the energy of the radiation, we plug it on the energy equation and solve for the frequency:

Therefore, the frequency of the cell phone electromagnetic radiation is:

Now that we know the frequency we just need to remember that the frequency and wavelength of electromagnetic radiation are related by:

Then we have:

Therefore, the wavelength is 0.111 m

the distance of Venus from the Sun in kilometers is: 107,708,467 km

One astronomical unit (au) is approximately equal to 149.6 million kilometers. Therefore, Venus orbits the sun at a distance of approximately 224.4 million kilometers (1.5 x 149.6 million km) from the sun.
Hi! Venus orbits the Sun at a distance of approximately 0.72 AU (not 1.5 AU). To convert this distance to kilometers, you can use the following formula:

1 AU (Astronomical Unit) = 149,597,870.7 km

So, the distance of Venus from the Sun in kilometers is:

0.72 AU × 149,597,870.7 km/AU ≈ 107,708,467 km

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Answer:

Gravitational Potential Energy

Explanation:

The distance of 1.32 light-years is equal to approximately 7.816 × 10¹² miles.

This can be calculated using the speed of light, which is 3.00 × 10⁸ m/s. To convert light-years to miles, we can use the formula:

1 light-year = distance traveled by light in one year = speed of light × time (1 year)

Given that the speed of light is 3.00 × 10⁸ m/s, we can first convert the distance to meters by multiplying 1.32 light-years by the number of meters in a light-year:

1.32 light-years = 1.32 × (9.461 × 10¹² m/light-year) = 1.32 × 9.461 × 10¹² m= 1.2462 × 10¹³ m

Next, we can convert meters to miles by dividing by the number of meters in a mile:

1 mile = 1,609.34 m

Therefore, we have:

1.2462 × 10¹³ m ÷ 1,609.34 m/mi= 7.816 × 10¹² miles

Thus, 1.32 light-years is equal to approximately 7.816 × 10¹² miles.

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The length of the string wrapped around a circular cylindrical post is 20ft.

We have a circular cylinder and a string wrapped around it.

If we unwrap one complete revolution of string around the post. We have a rectangle. Having a width of 4ft (that is the circumference of the post.)

height of the post is 12 feet

Then height of the rectangle is. 12/4 = 3ft

The string evenly loops around the post exactly four full times, starting at the bottom edge and finishing at the top edge.

So the length of this is the hypotenuse of right triangle sides 3 and 4

then length determined using Pythagoras theorem

L² = 3²+4² = 25

L =√25 =5ft

Here we have three more similar triangles in  more 3 revolution.

1 revolution×5+ 3revolution×5

4×5 =20ft

The length of the string  wrapped around a circular cylindrical post is 20ft.

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The current in each loop of the solenoid is 6.25 A. current is placed inside the solenoid, we can assume that the current passing through each loop is the same.

The solenoid is 17 cm long and has 800 loops of wire. Since the wire carrying the 5.0 A current is placed inside the solenoid, we can assume that the current passing through each loop is the same.

To find the current in each loop, we can use the formula:

I_solenoid = N * I_wire

Where:

I_solenoid is the current in the solenoid,

N is the number of loops,

I_wire is the current in the wire.

Plugging in the values, we have:

I_solenoid = 800 * I_wire

5.0 A = 800 * I_wire

Solving for I_wire, we get:

I_wire = 5.0 A / 800 = 0.00625 A

Therefore, the current in each loop of the solenoid is 6.25 A.

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Answer:

North Korea I'm pretty sure

Answer:

true

Explanation:

Answer: absorb

Explanation: ligh goes in ur eyes

Answer:

option D

Explanation:

this is because it occurs in many different dimensions, including biological, cognitive and socioemotional. this is also the answer on apex.

Answer D would be correct for a p e x

Answer:

Zero

Explanation:

Answer:

Stopping distance = 40m

Explanation:

Given the following :

Initial speed of vehicle before applying brakes = 72km/hr

Converting km/hr to m/s:

72km/hr = [(72 * 1000)m] / (60 * 60)

72km/hr = 72,000m / 3600s

72km/hr = 20m/s

Deceleration after applying brakes (-a) (negative acceleration) = - 5m/s^2

From the 3rd equation of motion:

v^2 = u^2 + 2as

Where v = final Velocity ; u= Initial Velocity ; a = acceleration and s = distance

Final velocity when the car stops will be 0

Therefore ;

v^2 = u^2 + 2as

0 = 20^2 + 2(-5)(s)

0 = 400 - 10s

10s = 400

s = 400/10

s = 40m

Therefore, the stopping distance of the car = 40 meters

Answer:

a = 0.41 [m/s²]

Explanation:

To solve this problem we must use Newton's second law which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

where:

F = force [N]

m = mass = 87 [kg]

a = acceleration [m/s²]

The frictional force will be taken as negative, since it opposes the movement of the block.

\(43-7.3 = 87*a\\35.7 = 87*a\\a=0.41[m/s^{2} ]\)

This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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The average power developed by the boy during the climb is approximately 29.4 W.

In physics, the amount of energy transferred or converted per unit time is called power.

total height = number of steps x height of each step

total height = 30 x 0.15 m = 4.5 m

Given, time = 60 s

As power = work done / time

work done = force x distance

force = mass x gravity

mass is boy's mass (40 kg) and gravity is acceleration due to gravity (9.81 m/s²).

force = 40 kg x 9.81 m/s² = 392.4 N

The distance that the boy moves is equal to the total height that he has climbed: distance = total height = 4.5 m

work done = force x distance

work done = 392.4 N x 4.5 m = 1765.8 J

power = work done / time

power = 1765.8 J / 60 s

power ≈ 29.4 W

Therefore, the average power developed by the boy during the climb is approximately 29.4 W.

As for the anomalous behavior of water, water has a higher boiling point and melting point as compared to other substances with similar molecular weight. This is due to the strong hydrogen bonding between water molecules, which requires more energy to break the bonds and change the state of water from solid to liquid to gas.

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Answer:A hydraulic press with a 0.5 mm input piston radius and a three times larger output piston has a mechanical advantage of 16, or 1:16.

Explanation: The mechanical advantage can be calculated using the following formula: mechanical advantage = output force / input force = output piston area / input piston area. The area of the output piston is nine times greater since it is three times the size of the input piston. The mechanical advantage is thus 9 / 0.56 = 16 or 1:16. This means that the hydraulic press has the capability of multiplying the input force by a factor of 16, making it considerably easier to lift heavy things or apply a considerable amount of power.

The potential difference V between points A and B is 992 V. The potential at point B is 805 V.

Part A: To determine the potential difference between points A and B, we need to calculate the potential at each point and then subtract them. The potential difference (V) is given by V = VB - VA.

Given the electric field expression E = 24x^2 - 10y, we can find the potential function V(x, y) using integration. We integrate the x-component of the electric field with respect to x and the y-component with respect to y.

Integrating 24x^2 with respect to x gives us 8x^3, and integrating -10y with respect to y gives us -5y^2. Thus, the potential function V(x, y) = 8x^3 - 5y^2 + C, where C is a constant.

To find the constant C, we use the given potential at point A, which is -187 V. Substituting the coordinates of point A (1,-3) into the potential function, we get -187 = 8(1)^3 - 5(-3)^2 + C.

Simplifying the equation, we find C = -187 - 8 + 45 = -150.

Now, we can determine the potential at point B by substituting its coordinates (5, 3) into the potential function. V(5, 3) = 8(5)^3 - 5(3)^2 - 150 = 1000 - 45 - 150 = 805 V.

Therefore, the potential difference between points A and B is V = VB - VA = 805 V - (-187 V) = 992 V.

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complete question:

The electric field in a region of space is given by the expression: E = 24x2-10y Part A Determine the potential difference V = VB - Vд between points A = (1,-3)m and B = (5, 3)m Part B Knowing that the potential at point A is-187 V, determine the potential at point B.

Answer:

F = 0.483 N

Explanation:

Initial momentum, \(P_i= 7\ kg-m/s\)

Final momentum, \(P_f= 22\ kg-m/s\)

Time, t = 31 s

We need to find the force of a lead ball. We can use here the impulse momentum theorem.

\(\text{Change in momentum}=F\times t\)

F is force

\(P_f-P_i=Ft\\\\F=\dfrac{P_f-P_i}{t}\\\\F=\dfrac{22-7}{31}\\\\F=0.483\ N\)

So, the force is 0.483 N.

Answer:

B

Explanation:

Answer:

b

Explanation:

Answer:

reduce, reuse, and recycle paper,plastic, electricity, glass, fiber

Even though the magnetic flux is increasing, the identical induced EMFs in the two cases can be attributed to the constant rate of change of magnetic flux within the solenoid.

The induced electromotive forces in the two different cases are the same despite the change in magnetic flux because of Faraday's law of electromagnetic induction. According to this law, the emf induced in a closed loop is directly proportional to the rate of change of magnetic flux through the loop.

This means that the magnetic field is increasing at the same rate in both cases. As a result, the emf induced in each case is identical.

The reason for this consistency is that the rate of change of magnetic flux determines the strength of the induced emf, regardless of the specific values of the magnetic flux.

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--The complete Question is, In a solenoid with steadily increasing magnetic flux, two different cases are illustrated where identical induced electromotive forces (emfs) are generated. Explain why the induced emfs are the same in both cases, despite the change in magnetic flux. --

Answer:

Classical physics viewed light as a wave.

Explanation:

because classical physics describes light as waves

Answer:

Charges B and C are negative

Explanation:

• We are certain of a law of magnetism that states "Field lines move from positive charge to negative charge"

\({}\)

Answer:

B and C are negative.

Explanation:

This is because according to the law of charges in electric field line it says that the lines forming the electric field move from the positive terminal to the negative terminal,hence making B and C be negative as the lines are moving into them.

The correct option is B, the areas labeled X, Y, and Z represent constructive interference in which waves strengthen each other.

Interference is a phenomenon that occurs when two or more waves interact with each other. In physics, waves can be described as a disturbance that travels through a medium, such as water or air. When two waves meet, they can either reinforce or cancel each other out, depending on their amplitudes and phases.

Constructive interference occurs when the peaks of two waves coincide, creating a larger amplitude than either wave alone. Destructive interference occurs when the peak of one wave coincides with the trough of another, resulting in a cancellation of the waves. Interference is a fundamental concept in many areas of physics, including optics, acoustics, and electromagnetism.

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Complete Question:

The diagram shows monochromatic light passing through two openings.

What do the areas labeled X, Y, and Z represent?

A). constructive interference in which waves cancel each other out

B). constructive interference in which waves strengthen each other

C). destructive interference in which waves cancel each other out

D). destructive interference in which waves strengthen each other

i only know the example :- adding salt to water will lead to increase in its boiling point .