the block is rotated about its lower left hand edge so that it comes to rest on one of its smallest sides explain why work is done as the block is rotated​

To choose the correct box plot, verify each of the options and make sure all the values in the plot match the values provided.

In a box plot, this value is represented by a vertical line located in the middle of the graph.

The maximum is the value located on the farthest right, while the minimum is located on the farthest left.

Divide the graph into 4 and analyze how much each quartile represents.

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Answer:

To choose the correct box plot, verify each of the options and make sure all the values in the plot match the values provided.

Explanation:

Answer:

if there isn't a shorting mechanism, the whole sets will be blown out several lamps and then shortened, the overall resistance of the remaining operating lamps will be decreased resulting in an increased working current that is adequate to blast the fuse

\( 3.35 \times 10 ^{ - 11} \)

Explanation:

\(m1= 5 kg \\ \\ m2 = 10 kg\)

\(distance \: \: between \: \: objects = 10 cm \\ \\ force \: \: of \: \: attraction = ? \\ \\ F= g m1 \times \frac{m2}{ {d}^{2} } \\ \\ =6.7 \times {10}^{ - 11} \times 5 \times \frac{10}{ {10}^{2} } \\ \\ = 67 \times {10}^{ - 11} \times 5 \times \frac{10}{100 \times 10} \\ \\ = 67 \times \frac{ {10}^{ - 11} }{20} \\ \\ =6.7 \times \frac{ {10}^{ - 11} }{2} \\ \\ = 3.35 \times 1 {0}^{ - 11} \)

Answer: there is no sound in space

Explanation: there is no vacum in space for sound to travel, therfore no sound waves

The power gain when the gain falls by 3 dB is approximately 300.7 mW, which is closest to option D: 244.2 mW.

The power gain of an amplifier can be calculated using the formula:

Power Gain (dB) = 10 * log10(Pout / Pin)

where Pout is the output power and Pin is the input power. In this case, the midrange gain of the amplifier is given as 600 mW.

To calculate the power gain when the gain falls by 3 dB, we need to find the new output power. Since the gain is decreasing, the new output power will be lower than the initial power.

First, we convert the midrange gain from milliwatts to watts:

Midrange Gain = 600 mW = 0.6 W

Next, we use the formula:

Pout / Pin = 10^(Power Gain / 10)

Since the gain falls by 3 dB, the new power gain is:

Power Gain = -3 dB

Now we substitute the values into the formula:

Pout / Pin = 10^(-3 / 10)

Pout / Pin = 10^(-0.3)

Pout / Pin = 0.5012

To find the new output power (Pout), we multiply the input power (Pin) by the ratio:

Pout = Pin * 0.5012

Pout = 0.6 W * 0.5012

Pout = 0.3007 W

Finally, we convert the output power back to milliwatts:

Pout = 0.3007 W = 300.7 mW

Therefore, the power gain when the gain falls by 3 dB is approximately 300.7 mW, which is closest to option D: 244.2 mW.

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Answer:

4 m

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 10 m/s

Acceleration (a) = –8m/s²

Time (t) = 2 s

Displacement (s) =?

The displacement of the object can be obtained as follow:

s = ut + ½at²

s = (10 × 2) + (½ × –8 × 2²)

s = 20 + (–4 × 4)

s = 20 + (–16)

s = 20 – 16

s = 4 m

Thus, the displacement of the object is 4 m.

Answer:

Well Astronomy is study of stars or planets and chemistry is like potions

Explanation:

Answer:

KE = KE (incidental) - KE of emitted photons

or KE = h * f - Wf

So   h * f = KE + Wf = 1.2 + 1.88 = 3.08    incident energy

If you double the frequency then h * f = 6.16

KE = 6.16 - 1.2 = 4.96 eV

Answer:

Actually, gravity is the weakest of the four fundamental forces. Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity

Explanation:

Mark me the Brainliest..pls..

The mistake that Kamala made from the table is that Gamma rays should have a very high frequency, not a very low frequency.

The grouping of electromagnetic radiations in the electromagnetic spectrum is done according to diminishing or increasing frequency or wavelength.

The following are some examples of electromagnetic radiations depending on increasing wavelength:

These are the radiation waves produced by the radioactive disintegration of atomic nuclei.

These rays have high frequencies. The frequency happens 1019 times every second.

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Answer:  gamma rays should have a very high frequency, not a very low frequency.

Explanation:

The mass of the vessel, m = 74400 kg

The external diameter, d = 5.20 m

Radius, r = 5.2 / 2 = 2.6 m

The volume of the vessel is given by the volume of a sphere

a) The buoyant force (B) is given by the formula:

b) The tension in the cable is given by the equation

Where T represents the tension

T = 739613.35 - 74400(9.8)

T = 10493.35

The self inductance of the solenoid is L = (μN^2A) /l . For a given current it will remain unchanged, because it doesn't depend on the current but the current change.

Self-inductance is the tendency of a coil to resist changes in current in itself. Whenever current changes through a coil, they induce an EMF, which is proportional to the rate of change of current through the coil.

So the Inductance of the coil is

L =  (μN^2A) /l

L is th einductance

N is the number of the turns of the solenoid

A is the cross sectional area

l is the length of the solenoid

Also, For a given current it will remain unchanged, because it doesn't depend on the current but the current change.

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The main driving force thought to be behind the slowing of the Gulf Stream is believed to be climate change. As the atmosphere and oceans warm, the Gulf Stream is losing heat to the atmosphere.

The Gulf Stream is a powerful ocean current that originates in the Gulf of Mexico and flows northward along the eastern coast of the United States. It is part of the North Atlantic gyre, a system of circulating ocean currents. The Gulf Stream is an important part of the global conveyor belt, a system that helps regulate the ocean's climate by transporting warm tropical waters to cooler regions of the world. The Gulf Stream is so powerful that it is able to move more water than all of the world's rivers combined. It transports more than 100 million cubic meters of water per second and has a maximum speed of up to 5.6 km per hour.

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Soln_

T = 1 hrs × 15 mils

=60 × 15

=900 ans#

The commutator reverses the flow of current in an electric motor.

In an electric motor, the commutator plays a crucial role in reversing the direction of the current flowing through the motor's coils. The commutator is a segmented metal ring that is typically made of copper or a copper alloy. It is mounted on the rotor or armature shaft of the motor.

As the rotor spins within the motor's magnetic field, the commutator brushes, which are usually made of carbon or graphite, maintain contact with the segments of the commutator. These brushes provide the electrical connection between the motor's power supply and the rotating coils on the armature.

The commutator segments are arranged in such a way that they ensure the current flow through the motor's coils is reversed at the appropriate moments. This reversal of current direction in the coils creates a changing magnetic field, which interacts with the fixed magnetic field of the motor, resulting in the rotation of the rotor.

By reversing the flow of current in the coils, the commutator allows the motor to continuously rotate in a single direction. Without the commutator's function of reversing the current, the motor would not be able to generate continuous rotational motion.

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Answer:

The commutator reverses the flow of current in an electric motor.

Explanation:

I got it right

Answer:

Object X reflects yellow and object Y reflects none.

Explanation:

We are able to see the colors of different objects because the light rays falling on the surface of an object reflects back few or none of the colors to our eyes. We see the color that is reflected back to our eyes.

In the context, Marcy has two objects, X and Y. We see that object X is yellow in color because as the light rays falls on the object X, it absorbs all the colors of the spectrum and reflects the color yellow back to our eyes. So we can see that the object X is yellow.

Similarly, when spectrum light falls on the surface of the object Y, it absorbs all light in its body and reflects none of its colors. So the object Y appears to be black to our eyes.

Answer:

the answer is C

I hope I helped (◍•ᴗ•◍)❤

Answer: Slow moving feather

The parked car has 0 velocity since it is stationary. The momentum of the car is 0 because momentum = mass*velocity.

On the other hand, the feather is moving, so its velocity is some positive value. Even if it's a small velocity value and the mass of the feather is small, the two will multiply to some positive momentum which is larger than 0.

So the feather has larger momentum compared to the parked car.

If a magnet is pushed faster toward a solenoid, the voltage induced in the solenoid will be greater.

If a magnet is pushed faster toward a solenoid, the voltage induced in the solenoid will be greater. This is due to Faraday's law of electromagnetic induction, which states that the magnitude of the voltage induced in a conductor is proportional to the rate at which the magnetic field lines passing through the conductor change.

When the magnet is pushed faster, the rate of change of the magnetic field lines passing through the solenoid increases, which in turn increases the induced voltage. Therefore, the faster the magnet is pushed, the greater the voltage induced in the solenoid.

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Answer:

B. 24.2 m/s

Explanation:

Given;

mass of the roller coaster, m = 450 kg

height of the roller coaster, h = 30 m

The maximum potential energy of the roller coaster  due to its height is given by;

\(P.E_{max} = mgh\\\\PE_{max} = 450 *9.8*30\\\\PE_{max} = 132,300 \ J\)

\(P.E_{max} = K.E_{max} \ (law \ of \ conservation\ of \ energy)\)

\(K.E_{max} = \frac{1}{2}mv_{max}^2\\\\ v_{max}^2 = \frac{2K.E_{max}}{m}\\\\ v_{max}^2 = \frac{2*132300}{450}\\\\ v_{max}^2 =588\\\\v_{max} = \sqrt{588}\\\\ v_{max} = 24.2 \ m/s\)

Therefore, the maximum speed of the roller coaster is 24.2 m/s.

Answer:

1. 24.2 m/s

2. 20.4 m

3. 22.5 m/s

4. 109,375 J

5. It is easy to calculate new scenarios.

Explanation:

5/5 on the Maximum Energy Quick Check

Answer:

Diamagnetic materials are those that some people generally think of as non-magnetic, and include water, wood, most organic compounds such as petroleum and some plastics, and many metals including copper, particularly the heavy ones with many core electrons, such as mercury, gold and bismuth.

Paramagnetic Materials: These are metals that are weakly attracted to magnets. They include aluminum, gold, and copper. The atoms of these substances contain electrons most of which spin in the same direction but not all.

Ferromagnetic materials are those materials which exhibit a spontaneous net magnetization at the atomic level, even in the absence of an external magnetic field. When placed in an external magnetic field, ferromagnetic materials are strongly magnetized in the direction of the field.

Explanation:

Answer:

I will say that no 1 is incorrect

Explanation:

no 1 is incorrect because one person cant confidently and effectively carry out an investigation there should be a collective work so that when ever there is a mistake and the one leading does not notice it the sub ordinates will and it will be corrected

Answer:

translucent and transparent

Answer:

225-Ib person weighs 1000 N

Answer:

Speed and distance traveled

Explanation:

Answer:

it is called melting or phase transition :)

Explanation:

Answer:

it's because every wire is different and the insides of it are possitive and negative

Explanation:

hope my answer is correct

The F = 0 and there is no force holding the balloon in place. This is consistent with the fact that the exit velocity is imaginary, to find the exit velocity v of the balloon rocket, we can use the Bernoulli's equation:
P1 + 1/2 * ρ * v1^2 = P2 + 1/2 * ρ * v2^2

In the above equation, P1 is the pressure inside the balloon (12 in-h2o), ρ is the air density (1.2 kg/m3), v1 is the velocity of air inside the nozzle (which we assume to be negligible), P2 is the atmospheric pressure outside the balloon (which we assume to be 1 atm), and v2 is the exit velocity of air from the nozzle (what we're trying to find).

First, let's convert the pressure inside the balloon from in-h2o to Pa:
12 in-h2o = 298.9 Pa

Now, we can rearrange the equation to solve for v2:
v2 = sqrt((P1 - P2) / (0.5 * ρ))
v2 = sqrt((298.9 - 101325) / (0.5 * 1.2))
v2 = sqrt(-83644.2)
v2 = imaginary number (not physically possible)

It appears that the exit velocity is imaginary, which means there is no solution. This could be due to the fact that the force holding the balloon in place is not strong enough to overcome the pressure inside the balloon.

To find the force F holding the balloon in place, we can use Newton's second law:
F = m * a

Where m is the mass of the balloon rocket and a is the acceleration of the rocket.
Assuming that the rocket is stationary (not moving), then a = 0.

Therefore, F = 0 and there is no force holding the balloon in place. This is consistent with the fact that the exit velocity is imaginary, as there would be no force holding the balloon in place if the pressure inside the balloon is greater than the force holding it in place.

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1.33kg of ice at 0.00 celsius is added to an 8.25kg tub of water at a warmer temperature. If the final temperature is 15. 7 celcius, then the initial temperature of the warmer in the tub was 25.3°C.

We can use the principle of conservation of energy to solve this problem. The energy lost by the ice as it melts is equal to the energy gained by the water as it warms up. The energy lost or gained is given by

Q = mcΔT

Where Q is the energy lost or gained, m is the mass of the substance, c is its specific heat capacity, and ΔT is the change in temperature.

First, let's calculate the energy gained by the water

Qwater = (8.25 kg)(4.18 J/(g·°C))(15.7°C - ti)

Where we have used the specific heat capacity of water, which is 4.18 J/(g·°C).

Next, let's calculate the energy lost by the ice

Qice = (1.33 kg)(334 J/g)

Where we have used the heat of fusion of ice, which is 334 J/g.

Since the ice melts at 0°C, we can set the energy lost by the ice equal to the energy gained by the water

Qice = Qwater

(1.33 kg)(334 J/g) = (8.25 kg)(4.18 J/(g·°C))(15.7°C - ti)

Solving for ti, we get

ti = 25.3°C

Therefore, the initial temperature of the warmer in the tub was 25.3°C.

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