Determine the temperature of the following two objects given their peak Blackbody wavelength. 1) λA​=400 nm 2) λB​=4 cm Note: 0.29 cm=0.29×107 nm Please upload your work to the dropbox provided.

Answer:

60

Explanation:

The tension to which the screw must be adjusted so that a transverse wave of wavelength 3.33 cm makes 625 vibrations per second is 5.48 N.

The speed of a transverse wave on a string is:

v = sqrt(T/μ)

where v is the speed of the wave, T is the tension in the string, and μ is the linear density of the string.

The frequency of a wave is related to its wavelength and speed by:

f = v/λ

where f is the frequency of the wave and λ is the wavelength.

Combining these equations:

f = sqrt(T/μ) / λ

Solving for T:

T = μf^2λ^2

The linear density of the wire is:

μ = m/L

where m is the mass of the wire and L is its length. Substituting the given values:

μ = 16.5 g / 0.83 m = 19.88 g/m = 0.01988 kg/m

The frequency of the wave is given 625 vibrations per second, which is equivalent to 625 Hz. The wavelength of the wave is given 3.33 cm, which is equivalent to 0.0333 m.

Substituting these values in the equation for tension:

T = \((0.01988 kg/m) * (625 Hz)^2 * (0.0333 m)^2\) = 5.48 N

Therefore, the tension in the wire must be adjusted to 5.48 N so that a transverse wave of wavelength 3.33 cm makes 625 vibrations per second.

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Answer:

the amount of each charge and the distance between them. ... Coulomb's law states the the electric force between two charges is proportional to the product of the two charges and inversally proportional to the square distance that separates their centers.

Answer:

A) The ball is accelerated while it is pushed by the student's hand due to an unbalanced force.

B) The ball slows down as it rolls because friction exerts an unbalanced force.

E) The ball does not change its motion while it is held in the student's hand due to balanced forces.

Explanation:

This country has become an attractive manufacturing location because of availability of workers skilled in semiconductor production is True.

This involves the process of conversion of raw materials into finished products.

It involves the factors of production which is why the country became an attractive manufacturing location for semiconductors because of the number of manufacturing plants in the country and availability of workers skilled in semiconductor production.

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If protons move in the direction of the electric field, the electric potential would change, and it decreases, but if you move opposite the field, the potential energy increases.

If the field is directed from lower potential to higher then the direction is taken to be positive. If the field is directed from higher potential to lower potential then the direction is taken as negative. Potential energy can be converted to kinetic energy and vice versa.

Potential energy is the stored energy in any object or system by virtue of its position or arrangement of parts. However, it isn't affected by the environment outside of the object or system, such as air or height.

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Electromagnetic induction is the process of generating an electric current by moving a conductor through a magnetic field. When a conductor moves through a magnetic field, a voltage is induced in the conductor. This is known as Faraday's Law of Electromagnetic Induction.

This voltage can be used to create an electric current in the conductor.To perform an electromagnetic induction lab, you will need materials such as a magnet, a coil of wire, a battery, and a galvanometer. The following are the steps to perform the experiment:

Step 1: Connect the galvanometer to the coil of wire.Step 2: Attach the magnet to the battery.Step 3: Move the magnet back and forth across the coil of wire.Step 4: Observe the reading on the galvanometer.

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The correct answer is Upthrust= 0.7N and Volume = 1.02 x 10⁻² g

Solid weighs.09 N in air.

Solid weighs less than liquid because of an upward force operating on it (solid weighs in liquid =.02 N).

A solid body experiences an upthrust when it is partially or entirely submerged in a fluid, such as water. In this case, the fluid's weight (water) equals the fluid's weight that the water has displaced.

upthrust is = to.09 -.02 N = 0.7N.

Upthrust = displaced liquid's weight

so that weight of liquid equal to volume of solid = 0.7 N

Volume of solid times mass of liquid = 0.07/9.8 = 0.00714 =  7.14 x 10⁻³ kg

Volume = Mass / density

Volume = 7.14 x 10⁻³ / 700

= 1.02 x 10⁻⁵ kg= 1.02 x 10⁻² g

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Answer:

I think option C is correct

Explanation:

Because frequency is opposite to energy

Essential amino acids are high biological value proteins (option C).

Biological value is the ratio between the amount of amino acids that can be retained (retention) by the body (for body protein synthesis) with the amount of amino acids that can be absorbed by the small intestine.

The quality of protein is determined by the type and proportion of amino acids it contains. Proteins with high biological value or high quality are proteins that contain all types of essential amino acids suitable for growth.

Proteins that are easily digested (hydrolyzed) by digestive enzymes, and contain complete and balanced amounts of essential amino acids (according to the body's needs), are proteins of high nutritional value.

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Answer:

A completes the following equation

Answer:

Many familiar physical quantities can be specified completely by giving a single number and the appropriate unit. For example, “a class period lasts 50 min” or “the gas tank in my car holds 65 L” or “the distance between two posts is 100 m.” A physical quantity that can be specified completely in this manner is called a scalar quantity. Scalar is a synonym of “number.” Time, mass, distance, length, volume, temperature, and energy are examples of scalar quantities.

Answer:

Pool:
1 lap: 100 m distance, 0 m displacement
1.5 laps: 150 m distance, 50 m displacement
2 laps: 200 m distance, 0 m displacement

Track:
1 lap: 200 m distance, 0 m displacement
1.5 laps: 300 m distance, 50 m displacement
2 laps: 400 m distance, 0 m displacement

Explanation:

Distance and displacement are two different things:

Distance is the full length you have traveled. For example, if you swim one lap around a 50 meter pool, you've traveled a distance of 100 meters (there and back).

However, displacement how far you are from the starting point. If you swim one lap around the same pool, your displacement is 0 meters since you ended up in the same place you had started from.

The plane's ground speed is approximately 181.6 mph, and the pilot should fly on a bearing of 117°30'.

To find the bearing the pilot should fly, we need to take into account the effect of the wind on the plane's motion. The resultant direction of the plane's path, also known as the heading, is the sum of the desired bearing and the wind direction.

The wind is blowing from the south, which corresponds to a bearing of 180°. Adding the wind direction of 180° to the desired bearing of 62°30', we get a heading of 242°30'. However, bearings are typically measured clockwise from the north, so we need to convert the heading to that convention.

To convert the heading, we subtract it from 360°:

360° - 242°30' = 117°30'.

Therefore, the pilot should fly on a bearing of 117°30'.

To find the plane's ground speed, we need to consider the effect of the wind on the plane's speed. The groundspeed is the vector sum of the plane's true airspeed and the wind speed. Using vector addition, we can find the magnitude and direction of the ground speed.

Given the plane's speed of 175.3 mph and the wind speed of 33.7 mph, we can use the Pythagorean theorem to find the magnitude of the groundspeed:

Groundspeed = √(175.3^2 + 33.7^2) ≈ 181.6 mph.

The direction of the ground speed is the same as the heading, which we found to be 117°30'.

Therefore, the plane's ground speed is approximately 181.6 mph, and the pilot should fly on a bearing of 117°30'.

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Answer:

The horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

Explanation:

Given;

height above the ground, h = 16.4 m

speed of the eagle, v = 9.3 m/s

The time it will take the pumpkin to fall at the given height is calculated as;

\(t = \sqrt{\frac{2h}{g} }\\\\t = \sqrt{\frac{2*16.4}{9.8} }\\\\t = 1.83 \ s\)

The horizontal distance traveled at this time is given by;

x = vt

x = (9.3)(1.83)

x = 17.02 m

Therefore, the horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

Answer:

1:No

2:The teacher was in the hall  so how would the child ask?

3: The child could have went into the hallway and asked the teacher if they could try and fix it.

Explanation:

Sorry if that isn't what your asking!

      </3 PureBeauty

Answer:

During lunch your friend asked you to come over after school, so you get on their bus to go home.

Questions to answer:

1. Was consent given (yes, no, unsure)?

2. What evidence do you have to prove your way of thinking?

3. How can you change the scenario to show that consent was given?

Explanation:1:No2:The teacher was in the hall so how would the child ask?3: The child could have gone into the hallway and asked the teacher if they could try and fix it.

Answer:

A quality of matter that is unrelated to a change in its chemical makeup is called a physical property.

Examples of physical properties of matter:

Physical properties are any qualities of matter that may be felt or seen without changing the sample's chemical composition.

Due to the wide range of features that make up physical attributes, they are further separated into intensive and extensive as well as isotropic and anisotropic categories.

Any characteristic that can be recognized and measured by sight, hearing, touch, smell, or other senses without evoking a chemical reaction is referred to as a physical property. Examples of physical traits are:

Color, Shape, Volume, Density, Calorific value, Boiling point, Viscosity, Pressure, Solubility, electrical current

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Answer:

B.

Goals are scored by kicking the ball through goalposts.

Explanation:

When two bodies at equal temperature are brought in contact with each other then no heat flows between them and they are said to be in thermal equilibrium.

When the engine temperature eventually reaches the same level as the ambient temperature, thermal equilibrium has taken place. After being placed on the table and waiting a short while, a cup of hot tea cools to the same temperature as its surroundings.

This is where thermal equilibrium occurs. the set temperature at which all of a solid's mass melts. When the solid turns into a liquid, both the solid and the liquid coexist in the thermal equilibrium.

The individual drove himself to his location. The engine temperature was excessively high during that time, but it eventually dropped to the air temperature outside. When the engine temperature eventually reaches air temperature, thermal equilibrium has occurred.

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A(1) and (2) only of the following bodies are at thermal equilibrium when being put into contact. i.e. (1) A glass of water of internal energy E at 20 °C (2) Alcohol with unknown internal energy at 20 °C .

As internal energy is measured in terms of the body temperature, when two bodies are in thermal equilibrium, their internal energies will also be equal.

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The distance between adjacent bright spots on the viewing screen will decrease if the two slits get closer together.

This is because the closer the slits are, the greater the diffraction effect, resulting in a larger angle between the diffracted waves and a smaller distance between the bright spots on the screen.

Interference patterns are formed when waves pass through two slits and interact with each other, creating regions of constructive and destructive interference.

The distance between these bright spots, known as the fringe spacing, is determined by the wavelength of the light and the distance between the slits. As the slits get closer together, the angle of diffraction increases, causing the bright spots to move closer together as well. Therefore, the correct answer is C: Decreases.

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It will take 53.3 x 10^-5 sec for a radio signal to travel 160 km from a transmitter to a receiving antenna

We take d to be 160 km = 160 x 10^3 m

Then

time = distance/speed

t = d/c

t = 160 x 10^3 m / 3 x 10^8 m/s

t = 53.3 x 10^-5 sec

Hence, it will take 53.3 x 10^-5 sec for a radio signal to travel 160 km from a transmitter to a receiving antenna

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Answer:

Ultrasonic waves

Explanation:

Option D: wind spinning turbine blades spins a turbine to generate electricity in a concentrated solar power (CSP) system.

A turbine in CSP system uses wind to transform kinetic energy into electrical energy. A rotary machine is a water turbine. It produces mechanical work by converting the kinetic energy of wind. After that, the work is turned into electrical energy. They are mostly employed in the creation of electric power. Dams employ water turbines to harness the potential energy of the water to produce electricity. Similar to this, a water turbine transforms kinetic energy into electrical energy to produce power.

Potential energy can be found in electrical batteries. The battery stores its electrical potential energy as the electrons flow from the cathode to the anode. This chemical potential energy is then transformed into electrical energy. The chemical energy is changed into electrical energy in this situation.

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Answer:

5Hz

Explanation:

Frequency = No. of waves per second

10 waves are produced in 2 seconds

in one second 10/2 waves are produced

(ie) 5 waves are produced in 1 second

Therefore the frequency of wave is 5 Hz

a) The acceleration of the ball is 2 m/s^2.

b) The velocity of the ball at the bottom of the incline is 8 m/s.

Answer:

The length of the third side is

     \(c =8.82 \  m \)

The tangent of the angle for which 6.9 m is the opposite side is

\(k = 1.256\)

Explanation:

From the question we are told that

The first side is a = 6.9 m

The second side is b = 5.5 m

Generally apply Pythagoras theorem

\(c^2 = a^2 + b^2\)

=> \(c = \sqrt{a^2 + b^2 }\)

=> \(c = \sqrt{6.9^2 + 5.5^2 }\)

=> \(c =8.82 \ m \)

From sin rule we have that

\(\frac{c}{sin(\theta )} = \frac{a}{sin (\beta )}\)

Generally from a right triangle the angle \(\theta = 90\)

So

\(\frac{8.82}{sin(90 )} = \frac{6.9}{sin (\beta )}\)

=> \(\beta = sin ^{-1}[\frac{6.9}{8.82} ]\)

=> \(\beta =51.47^o\)

Generally the tangent of the angle for which 6.9 m is the opposite side is mathematically represented as

\(k = tan (\beta )\)

       \(k  =  tan (51.47 )\)

       \(k  = 1.256\)

The common element among measures of speed, rate, and latency is time.

The only science that specifically studies time is physics, but even physicists acknowledge that time is one of the most challenging aspects of our universe to comprehend. However, time is typically seen as an ontologically "fundamental" or primary idea and is not composed of or dependent upon anything else, even in the most advanced and sophisticated physical models.

Time is typically defined by its measurement in the sciences; it is only what a clock says. Since physics in particular frequently requires extremely precise time measurements, time must be regarded as an infinitely divisible linear continuum and not as a quantized quantity (i.e. composed of discrete and indivisible units). Time can now be measured accurately to about 1015 seconds thanks to contemporary atomic time standards like TAI and UTC and extremely precise atomic clocks. This is equivalent to about 1 second of error in roughly 30 million years.

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The absolute pressure in a car tire can found by following method:

Pressure is the force per unit area applied toward a course perpendicular to the outer layer of an item. To keep it precise, it is an amount of force following up on a unit area. The SI unit for pressure is measured in Pascals (Pa). Other non-SI units are bar and PSI. There are two types of references to quantify pressure,

                                 Gauge Pressure

                                 Absolute Pressure

Formula of Absolute pressure is given by:

                                       p(a) = p(g) + p(atm)

Where ,

p(a) is absolute pressure,

p(g) is gauge pressure and

P(atm) is atmospheric pressure

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The period of the violin string oscillations is 0.0022 seconds.

The beat frequency of 6 per second means that the frequency of the violin string oscillations is slightly higher than the frequency of the tuning fork.

We can use the formula for beat frequency to find the difference in frequency between the two:

Beat frequency = |f1 - f2|

where f1 and f2 are the frequencies of the two sources.

In this case, the beat frequency is 6 beats per second and the frequency of the tuning fork is the standard Concert A pitch of 440 Hz. So we have:

6 = |f1 - 440|

Solving for f1, we get:

f1 = 446 Hz or 434 Hz

The two possible frequencies of the violin string are 446 Hz and 434 Hz, with 440 Hz being the frequency of the tuning fork.

The period of a wave is the time it takes for one complete oscillation or cycle. It can be calculated as:

period = 1 / frequency

So the period of the violin string oscillations for a frequency of 446 Hz would be:

period = 1 / 446 Hz ≈ 0.0022 seconds

And for a frequency of 434 Hz:

period = 1 / 434 Hz ≈ 0.0023 seconds

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