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The amount of water Archimedes displaced when he sat in a tub full of water is 0.07 cubic meters.

Archimedes' principle states that the buoyant force acting on a submerged object is equal to the weight of the displaced fluid. Therefore, the amount of water that Archimedes displaced when he sat in a tub full of water is equal to his weight.

Given that Archimedes weighed 70 kg, the amount of water he displaced would also be 70 kg.

To convert this to cubic meters, we need to use the density of water, which is 1000 kg/m^3. The volume of water displaced can be calculated using the formula:

volume = mass / density

Plugging in the values, we get:

volume = 70 kg / 1000 kg/m^3 = 0.07 cubic meters

Therefore, the amount of water Archimedes displaced when he sat in a tub full of water is 0.07 cubic meters.

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Answer:

Explanation:

The sun sends out solar wind constantly - charged particles that can degrade visual sensors and the skin of spacecraft, and the occasional blast of a solar flare, which can send out clouds of charged ions that can disrupt communications and electronics on board probes and satellites.

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The vast majority of pulsars are known only from their pulses in radio waves. While pulsars emit radiation across the electromagnetic spectrum, it is primarily the radio waves that have been widely used for their detection.

Pulsars are highly magnetized, rotating neutron stars that emit beams of electromagnetic radiation, including radio waves, X-rays, and gamma rays. These beams of radiation are detected on Earth as regular, periodic pulses, giving pulsars their name.

While pulsars emit radiation across the electromagnetic spectrum, it is primarily the radio waves that have been widely used for their detection. Radio telescopes are sensitive to the long-wavelength radio emissions from pulsars, allowing astronomers to observe and study their pulsating signals.

The detection and identification of pulsars are primarily based on the analysis of their radio wave pulses. Astronomers search for periodic signals in the radio data, looking for distinctive patterns that indicate the presence of a pulsar. By analyzing the timing and characteristics of the pulses, astronomers can determine various properties of the pulsar, such as its rotation period, magnetic field strength, and sometimes even its motion and distance.

Therefore, the vast majority of pulsars are known only from their pulses in radio waves, as these have been the most commonly observed and studied emissions from pulsars.

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Answer:

thanks

Explanation:

willow ptarmigan

The correct option is A, the stick's angular momentum is measured at a magnitude of  \(0.0394\:kg . m^2/s\).

In this case I is given as;

\(I = 1/12\:(m*L^2)\\I = 1/12\:( 0.135 * 1^2)\\I = 0.01125\:kg\:m^2\\\)

Following that, the angular momentum may be computed as

\(M = 0.01125\:kg\:m^2*3.50\:rads/s\\M = 0.039375\:kg\:m^2/s\\M = 0.0394\:kg\:m^2/s\)

The rotating motion of an object around an axis is described by the fundamental idea of angular momentum in physics. It is a vector quantity that is affected by the mass, velocity, and separation from the axis of rotation of the object. The ratio of an object's moment of inertia to its angular velocity determines how much angular momentum it has.

An object's angular momentum measures how much it rotates and how challenging it is to halt that revolution. The angular momentum of an object increases with its moment of inertia and angular velocity. Since angular momentum is conserved in isolated systems, a system's overall angular momentum stays constant until it is affected by an outside torque.

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Complete Question:-

A uniform 135-g meter stick rotates about an axis perpendicular to the stick passing through its center with an angular speed of 3.50 rad/s. What is the magnitude of the angular momentum of the stick?

A) 0.0394 kg · m^2/s

B) 0.473 kg · m^2/s

C) 0.0739 kg · m^2/s

D) 0.158 kg · m^2/s

E) 0.0236 kg · m^2/s

Answer:

Speed: Distance per time, 400 km/h, and a scalar quantity.

Velocity: Displacement per time, 20 m/s south, and a vector quantity.

Explanation:

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Answer:

he is the first person can be 3in and a 6man is the best not a man of the hartford

Answer:

F = 32.2 m

Explanation:

F = ma

F = m * 32.2

The same-side exterior angles are not congruent, they are supplementary. The same side exterior angles are formed and they have a sum of 180 degrees.

Congruent refers to having the same precise size and shape. Even if we flip, turn, or rotate the forms, their shape and size need to remain constant. If it is possible to superimpose one geometric figure onto the other such that they correspond throughout, then the two are said to be congruent, or to be in the relation of congruence.

In general relativity, a congruence (more precisely, a congruence of curves) is the collection of integral curves of a (never vanishing) vector field in a four-dimensional Lorentzian manifold that is used to physically represent spacetime.

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The direction of the total electric force on the charge q at the center of the square is downwards while at the center of the square, due to the four corner charges is inwards.

Given that the charge on a point at the center of square = q

The charge on leftmost points on the square = q_n

The charge on two rightmost points of square = q_p

If we assume that the charge on the center point of square is negative then,

a.) The direction of the total electric force on the charge q at the center of the square is downwards, that is towards the bottom of the square.

As the two leftmost charges have the same negative charge q_n and the two rightmost charges have the same positive charge q_p, they are repulsive to each other due to which the total electric force on the center charge q is a downward force while the direction of force on positive charges is upwards. Since the downward force is greater than the upward force, the total electric force is downwards.

b.) Due to the negative charge of the center charge q, the electric field from the two leftmost charges will be directed inward, and the electric field from the two rightmost charges will be directed outward. As the outward electric field is weaker than inward electric field, the net electric field at the center of the square will be directed inward.

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complete question: In the figure, four point charges lie on the corners of a square, with a fifth point charge q located at the center. The two leftmost charges have the same negative charge q_n, and the two rightmost charges have the same positive charge q_p. Assume that the center charge q is negative. a. What is the direction of the total electric force on the charge q at the center of the square? b. What is the direction of the electric field at the center of the square, due to the four corner charges?

CP is the centi-poise, a unit of viscosity, it is equal to one-hundredth of a poise.

The viscosity is defined as the resistance of the fluid offered to the change in shape or orientation of the layers. When one layer moves over other layer of the liquid, then both layer resist motion of each other. This friction force of liquid is known as viscosity. its SI unit is N-s/m², and poise is the unit of viscosity in CGS system. 1 poise = 1 dyne-s/cm². 1 centi-poise = 0.01 P.

1 centi-poise is equal to 1 milipascal-sec(m-Pa.s) in the SI unit.

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Explanation:

a) Velocity and acceleration of a car are parallel when the car is moving along a straight line in the same direction. For example, when a car is gaining speed as it moves forward in a straight line, both velocity and acceleration are directed in the same direction.

b) Velocity and acceleration of a car are anti-parallel when the car is moving along a straight line in the opposite direction. For example, when a car slows down while moving in a straight line, its acceleration is directed opposite to the direction of its velocity, or the other way around.

Answer:

a)

There is only one case where velocity and acceleration are parallel only when they are moving in the same direction.

b)

There are 3 cases where velocity and acceleration are antiparallel.

(i) When both are moving in different direction

   It means :

(ii) When the object is slowing down, where velocity and acceleration are in the opposite direction.

(iii) In case of motion reversal.

Explanation:

Answer:

Explanation:

1.

\(\mathrm{The\:solution\:for\:Long\:Division\:of}\:\frac{2.995}{0.16685}\:\\\mathrm{is}\:17.95025\)

2.

\(\mathrm{Multiply\:without\:the\:decimal\:points,\:then\:put\:the\:decimal\:point\:in\:the\:answer}\\\\910\times\:18945=17239950\\\\910\mathrm{\:has\:}0\mathrm{\:decimal\:places}\\0.18945\mathrm{\:has\:}5\mathrm{\:decimal\:places}\\\\\mathrm{Therefore,\:the\:answer\:has\:}5\mathrm{\:decimal\:places}\\\\=172.39950\\\\Refine\\=172.3995\)

From the law of conservation of momentum, the first egg did not break because it forward momentum is transferred to the cloth while the second egg broke, the block exerts an opposite force equal to the momentum of the egg on the egg.

Momentum is the product of the mass of an object and its velocity of motion.

The law of conservation of momentum states that the momentum of an isolated system of colliding bodies is conserved.

When an egg is thrown on a large sheet of cloth suspended, the egg does not break because the momentum of the egg is transferred to the cloth as it is depressed.

However, a second egg, thrown with similar force at a suspended concrete block, did break on impact because the block does not move forward, instead it exerts an equal but opposite force on the egg resulting in the egg breaking.

Therefore, from the law of conservation of momentum, the first egg did not break because it forward momentum is transferred to the cloth while the second egg broke, the block exerts an opposite force equal to the momentum of the egg on the egg.

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Differential equation for the amount x(t) is dx/dt = r - kx

This is a first-order linear differential equation that describes the rate of change of the amount of drug x in a patient's bloodstream. The first term on the right-hand side, r, represents the rate at which the drug is being infused into the bloodstream. The second term, -kx, represents the rate at which the drug is being removed from the bloodstream, which is proportional to the amount of drug present at time t. The constant of proportionality, k, is a positive constant that depends on the specific drug and patient. Solving this differential equation would give us the amount of drug x(t) at any time t, provided we have an initial condition for x(0). This information could be useful for determining the optimal dosage and timing of the drug infusion to achieve a desired therapeutic effect while minimizing side effects. Additionally, it could help healthcare providers monitor the drug's concentration in the patient's bloodstream and adjust the infusion rate or administration of other drugs accordingly.

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Answer:

La fuerza electrostática de atracción entre las partículas es 7000 newtons.

Explanation:

Supongamos que las cargas son debidas a partículas. Puesto que las cargas tienen signos opuestos entre sí, debemos concluir que la fuerza electrostática es de atracción.

La fuerza electrostática (\(F\)), medida en newtons, es determinada por la Ley de Coulomb, cuya magnitud se determina con la siguiente fórmula:

\(F = \kappa \cdot \frac{|q_{A}|\cdot |q_{B}|}{r^{2}}\)

Donde:

\(\kappa\) - Constante electrostática, medida en newton-metros cuadrados por coulomb al cuadrado.

\(q_{A}\), \(q_{B}\) - Cargas de cada partícula, medidas en coulombs.

\(r\) - Distancia de separación entre las partículas, medida en metros.

Si conocemos que \(\kappa = 9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}\), \(q_{A} = -4\times 10^{-4}\,C\), \(q_{B} = 7\times 10^{-4}\,C\) and \(r = 0.6\,m\), entonces:

\(F = \left(9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot \left[\frac{|-4\times 10^{-4}\,C|\cdot |7\times 10^{-4}\,C|}{(0.6\,m)^{2}} \right]\)

\(F = 7000\,N\)

La fuerza electrostática de atracción entre las partículas es 7000 newtons.

Answer:

An elliptical orbit is the revolving of one object around another in an oval-shaped path called an ellipse. The planets in the solar system orbit the sun in elliptical orbits. Many satellites orbit the Earth in elliptical orbits as does the moon.

Answer: last one radio waves

Or d

Explanation:

Answer:

infrared

Explanation:

ed2020

The property of sound that refers to how long a musical sound lasts is called "duration."

Duration describes the length of time a sound is audible, Duration describes the length or time span of a sound, specifically the time it takes for the sound to decay or fade away after it is produced. In music, duration is an important element that contributes to rhythm and the overall structure of a composition.

Duration is a fundamental aspect of sound and refers to the length of time that a sound or musical note is audible. It is often described in terms of its temporal length, such as seconds, milliseconds, or any other relevant unit of time. Duration plays a crucial role in shaping the rhythm, pacing, and overall structure of music.

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We cannot determine the speed at which a star in the galaxy is moving away from us based on its mass, luminosity, age, or color alone. it is false

The speed at which a star in the galaxy is moving away from us is determined through the measurement of its spectrum using a technique known as redshift.

When a star or galaxy moves away from us, its light is shifted towards longer wavelengths, resulting in a redshift. By analyzing the degree of redshift, astronomers can estimate the speed at which the star is receding.

However, factors such as mass, luminosity, age, and color do not provide direct information about the star's motion away from us.

These characteristics are important for studying other properties of stars, such as their composition, brightness, evolutionary stage, and temperature. To determine the motion of a star in the galaxy, redshift measurements are essential.

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Based on the data provided, the impulse of the floor on the ball is 59.4 Ns.

Using the equation of motion to determine the velocity at the end of the fall

Where v is velocity at the end of fall

u is initial velocity = 0

g is acceleration due to gravity = 9.81 m/s^2

h is height = 20

v^2 = 0 + 2 (9.81)(20)

v^2 = 392.4

v = - 19.8 m/s

The velocity, v after bouncing is calculated also:

u = 0

g = 9.81 m/s^2

h = 5.0 m

v^2 = 0 + 2(9.81)(5)

v^2 = 98.1

v = 9.904 m/s

Impulse = 2.0 × (9.9 -(-19.8)

Impulse = 59.4 Ns

Therefore, the impulse of the floor on the ball is 59.4 Ns.

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The purpose of the calibration curve in Part V of the electrochemical measurement procedure is to establish a relationship between the measured signal and the analyte concentration.

In electrochemical measurements, the calibration curve plays a crucial role in quantifying the concentration of the analyte of interest. It involves plotting a series of known analyte concentrations against their corresponding measured signals. By analyzing the resulting curve, one can determine the relationship between the signal response and the analyte concentration. This relationship is typically linear or follows a specific mathematical model. The calibration curve serves as a reference to convert the measured signals obtained from unknown samples into their corresponding analyte concentrations. It allows for accurate and reliable quantitative analysis by providing a means to interpolate or extrapolate the analyte concentration based on the measured signal.

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Specific heat is quantity of heat required to increase the temperature of a substance by one degree celsius.

The formula to calculate heat energy is

Q=mc∆T

We know, Q=mc∆T

Where Q = heat energy

m = mass

c= specific heat capacity

∆T= change in temperature

Thus,

According to above formula

c= Q/m∆T

Here m= 2 kg

∆T= 5 degrees

Q= 2000 joules

c= 2000/2×5

c= 200

Thus, the specific heat capacity of the block is 200.

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Answer:

static electricity

Helicopter rescue winch-men must dangle a metal wire below them so that it always touches the ground or water surface first. This discharges static electricity that may have built upon the helicopter.

Static electricity is a familiar electric phenomenon in which charged particles are transferred from one body to another. For example, if two objects are rubbed together, especially if the objects are insulators and the surrounding air is dry, the objects acquire equal and opposite charges.

Static electricity is generated by friction between two insulating materials. When the materials are rubbed together, electrons are removed from atoms within the materials, giving rise to a static electric charge.

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Since the meter's 3V terminals are connected to the circuit, we have to read the "zero-to-3" scale on the meter to get our measurement.  That's the scale under the marks.

On that scale, the needle points to  1.4 DC Volts.  That's the potential difference between the two points the meter probes are touching.

Answer:

Approximately \(4.25\; {\rm N}\) as long as the wooden block continues moving.

Explanation:

Since the wooden block is moving, the friction on the block will be kinetic friction. This friction will be proportional to the magnitude of the normal force on the block. Specifically:

\(\begin{aligned}& (\text{kinetic friction}) \\ =\; & (\text{normal force})\, (\text{kinetic friction coefficient $\mu_{k}$}) \end{aligned}\).

In this question, since the surface is horizontal, the only vertical forces on this block will be:

These two forces will balance each other. Thus, \((\text{normal force}) = (\text{weight})\).

\(\begin{aligned}(\text{normal force}) &= (\text{weight}) \\ &= (\text{mass})\, g\end{aligned}\).

Substitute to obtain:

\(\begin{aligned}& (\text{kinetic friction}) \\ =\; & (\text{normal force})\, (\text{kinetic friction coefficient $\mu_{k}$}) \\ =\; & (\text{mass})\, (\text{kinetic friction coefficient $\mu_{k}$})\, g\end{aligned}\).

In other words, the kinetic friction on the block is proportional to the mass. As long as the block continues moving, increasing mass from \(1200\; {\rm g}\) to \((1200 + 500)\; {\rm g} = 1700\; {\rm g}\) will increase friction to \((1700 / 1200) = (17/12)\) the initial value, \((17/12)\, (3\; {\rm N}) \approx 4.25\; {\rm N}\).

Answer : The correct degree of precision is 272.94 g.

Explanation :

Precision : It is defined as the closeness of two or more measurements to each other.

For Example: If you weigh a given substance five times and you get 2.7 kg each time. Then the measurement is said to be precise.

Level of precision is determined by the maximum number of decimal places.

In the given figure, the value of mass of object is 280 g. From the given options we conclude that the 272.94 g is more close to 280 g and has maximum number of decimal places. So, 272.94 g measurement is said to be precise.

Therefore, the correct degree of precision is 272.94 g.

Answer:

a.

electric circuit.

Explanation:

A path through which electric charges flow. A continuous, unbroken path through which electrons can flow is a closed circuit. Charges, or current, can flow only through a closed circuit. A break or opening in a circuit creates an open circuit.

Answer:

The answer would be A

Explanation:

An electric circuit.

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