the human eye is capable of an angular resolution of about one arcminute, and the average distance between eyes is approximately 2 in. if you blinked and saw something move about one arcmin across, how far away from you is it? https://www.g/homework-help/astronomy-1st-edition-chapter-19-problem-36e-solution-9781938168284?trackid

A hammock is tied with ropes between two trees. a person lies in it. under the circumstances are its ropes more likely to break is when force on rope is maximum due to weight of man.

A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given that in the question a hammock is tied with ropes between two trees. a person lies in it. under the circumstances are its ropes more likely to break then when force is maximum on the rope.

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23674 N is the amount of magnitude frictional force required to bring the locked-together automobiles to a complete stop.

Magnitude is simply referred to in physics as "distance or quantity." It shows the size or direction that an object moves in either an absolute or relative sense.

A magnitude can be defined as a quantity's size in simple terms. For instance, the Richter scale's measurement of an earthquake's magnitude, which identifies the earthquake's size, typically ranges from 1 to 10. An earthquake with an 8-magnitude is far more problematic than one with a 3-magnitude.

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The concept of escape velocity helps explain the lack of an atmosphere on the Moon, as its relatively low escape velocity allows gases to escape easily, preventing the development and maintenance of a significant atmosphere.

The concept of escape velocity helps explain the lack of an atmosphere on the Moon by considering the gravitational pull of the Moon and the speeds required for gases to escape its gravitational field.

Escape velocity is the minimum velocity an object needs to achieve in order to overcome the gravitational attraction of a celestial body and escape into space. It depends on the mass and radius of the celestial body. The Moon has a smaller mass and radius compared to Earth, resulting in a lower escape velocity.

The Moon's escape velocity is about 2.38 kilometers per second (km/s), significantly lower than Earth's escape velocity of 11.2 km/s. The low escape velocity of the Moon means that gases, such as the ones that make up an atmosphere, can easily reach the necessary speeds to escape into space.

As a result, the Moon is unable to retain a substantial atmosphere. Any gas molecules released into the Moon's environment due to processes like outgassing or impacts from space will gain sufficient energy from the Moon's weak gravitational pull and escape into space rather than being held close to the lunar surface.

Therefore, the concept of escape velocity helps explain the lack of an atmosphere on the Moon, as its relatively low escape velocity allows gases to escape easily, preventing the development and maintenance of a significant atmosphere.

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Answer:

Explanation:

R1= (1/6 + 1/6)rised to -1 = 3 ohm

R total = R1 + 6 = 3+ 6 =  9 ohm

Answer:

Explanation:

v = 9.8 yd/sec

t = 10 sec

d = ??

You really don't have to do any conversions. Football distances are measured in yards.

d = r * t

d = 9.8 * 10.2

d = 99.96 yards

I think I would round that to 100 yards.

The water outflow in 30 secs through 200 mm of the capillary tube is mathematically given as

\(Qo=1.6 \times 10^{2} \mathrm{~mL}\)

\(\begin{aligned}\Delta P &=6660 \mathrm{~m} / \mathrm{m}^{2} \\\mu &=8.01 \times 10^{-4} \text { Pas } \\t &=30 \mathrm{~s} \\L &=200 \mathrm{~mm}=200 \times 10^{-3} \mathrm{~m} \\D &=1.5 \mathrm{~mm}=1.5 \times 10^{-3} \mathrm{~m} \Rightarrow \gamma=\frac{1.5 \times 10^{-3}}{2} \mathrm{~m}\end{aligned}\)

Generally, the equation for Rate of flow of Liquid is  mathematically given as

\(\\$$Q=\frac{\pi r^{4} \times \Delta P}{8 \mu L}\)

$$

Where dP is pressure difference r is the radius

\(\mu\) is the viscosity of water

L is the length of the pipe

\(Q=\frac{\pi \times\left(\frac{1.5 \times 10^{-3}}{2}\right)^{4} \times 6660}{8 \times 8.01 \times 10^{-4} \times 200 \times 10^{-3}}\)

\(Q=5.2 \mathrm{~mL} / \mathrm{s}\)

In $30s the quantity that flows out of the tube

\(&Qo=5.2 \times 30 \\&Qo=1.6 \times 10^{2} \mathrm{~mL}\)

In conclusion, the quantity that flows out of the tube

\(Qo=1.6 \times 10^{2} \mathrm{~mL}\)

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160 degree celsius is 320 degree fahrenheit

Define temperature.

The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature.

Thermometers are calibrated using a variety of temperature scales, which historically defined distinct reference points and thermometric substances. The most popular scales are the Celsius scale, sometimes known as centigrade, with the unit symbol °C, the Fahrenheit scale (°F), and the Kelvin scale (K), with the latter being mostly used for scientific purposes. One of the seven base units in the International System of Units is the kelvin (SI).

When converting from degrees Celsius to Fahrenheit, multiply the result by 1.8 (or 9/5) and then by 32.

160 degree celsius will be (160 *1.8)+32 i.e. 320degree F.

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Using the model, the absolute maximum value of acceleration is 21.698 m/s² and the absolute minimum value of acceleration is 14.597 m/s² between liftoff and the jettisoning of the solid rocket boosters.

Solid rocket boosters (SRBs) are large rocket engines used to provide the majority of the thrust required for a spacecraft during its initial launch phase. They are called “solid” because they contain solid propellant, that burns at a controlled rate to produce thrust.

In the given problem:

We know,

v(t)=0.001500000t³-0.08t²+16.02t-2.37

Acceleration will be derivative of velocity

Hence, a=dv/dt=0.0045t2-0.16t+16.02

at t=0,a=16.02 m/s²

Now the maximum acceleration will be at endpoint i.e., t=57.5s

so at t=57.5 s, a=21.698 m/s²

For minimum acceleration, a'(t)= 0.009t-0.16<0

t<17.77

Minimum acceleration will be at t=17.77 s, a(t)=14.597 m/s²

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The question is incomplete, but most probably the complete question is,

A University of Rochester student decided to depart from Earth after his graduation to find work on Mars. Before building a shuttle, he conducted careful calculations. A model for the velocity of the shuttle, from liftoff at t = 0 s until the solid rocket boosters were jettisoned at t = 57.5 s, is given by (in feet per second). Using this model, estimate:

the absolute maximum value = ??

and absolute minimum value - ??

of the ACCELERATION of the shuttle between liftoff and the jettisoning of the boosters.

The magnitude of the electric field at the origin produced by a semi-circular arc of charge = 5.2 μC, twice the charge of the quarter-circle arc is 3.59785115 × 10⁶ T.

What is Charge ?

In the context of electricity, a "charge" refers to a basic unit of electrical energy that is stored in a body due to its electric potential. Electric charges can be either positive or negative and are associated with the properties of matter that allow it to participate in electrical interactions. When two objects with differing charges come into close proximity, an electric field is generated that can cause a flow of charge, which is known as an electric current.

B = 2kQ / πa²

B = ((2 x 9 x 10⁹ x 5.2 x 10⁻⁶) / (π x (9.1 x 10⁻²)²))

B = 3597851.15  T

B = 3.59785115 × 10⁶ T

Thus, The magnitude of the electric field at the origin produced by a semi-circular arc of charge is 3.59785115 × 10⁶ T.

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Answer:

mass (m) = 0.075 kg

acceleration (a) = 550000 m/\(s^{2}\)

F = ( 0.075 kg )( 550000 m/\(s^{2}\) ) = 41250 N

Explanation:

F = ma ; force is equal to mass times acceleration

mass (m) = 0.075 kg

acceleration (a) = 550000 m/\(s^{2}\)

F = ( 0.075 kg )( 550000 m/\(s^{2}\) ) = 41250 N.

do you get these options in the drop down?

13.02 meters

Explanation

the work done by the brakes makes the car stops, so the change in energy equals the work done

hence

also, the work done by a force is given by

then, let

replace

therefore, the answer is

13.02 meters

I hope this helps you

The given statement is that the temperature in degrees Fahrenheit in times square during a day in August can be predicted by the function t(x).

Hence, it can be stated that the function t(x) provides a prediction for the temperature in degrees Fahrenheit in Times Square for a given value of x. Here, x represents the input variable.

It is important to note that the input variable must be provided in the correct units and format as required by the function t(x).The content loaded refers to the data that has been previously collected and is available for analysis. In the context of predicting temperature using function t(x),

the content loaded can refer to temperature data collected in Times Square during August on previous days or years. This data can be analyzed and used to develop the function t(x) that predicts temperature for a given input variable x.

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(a) When the voltage increases, the electric field increases, and vice versa.

(b) When the distance of the charge increases, the electric field strength decreases, and vice versa.

The direction of the electric field depends on the direction of the positive charge, electric field is always directed opposite to positive charge.

The potential of a unit charge is the product of the electric field strength and the distance of the charge.

V = Ed

E = V/d

Thus, when the voltage increases, the electric field increases, and when the voltage decreases, the electric field decreases.

Also, when the distance of the charge increases, the electric field strength decreases, and the distance decreases, the electric field strength increases.

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Answer:

The value of the resistance is 3.99 kΩ

Explanation:

The value of the resistance, given that a heart pacemaker fires 89 times a minute, and each time a 36.0-nf capacitor is charged to 0.632 of its full voltage, is 3.99 kΩ.

How to determine the value of the resistance?

We know that a pacemaker fires 89 times per minute, charging a 36.0-nf capacitor each time, and the capacitor is charged to 0.632 of its full voltage.

The formula for determining the time constant is: τ = RC and the formula for determining the voltage of a capacitor as it charges is: Vc = Vmax(1 - e^(-t/τ)) Using the following information, we can compute the value of the time constant:

τ = RCτ = (0.632Vmax * C) / IV max = 9 V The value of the time constant is τ = RC = (0.632Vmax * C) / I = (0.632 * 9 * 10^-3) / I = 5.67 * 10^-3 / I To find the value of the resistance, R, we'll use the frequency of the pacemaker (f = 89/60 Hz), which is the number of times it fires per second.

RC = 1/fRC = (5.67 × 10^-3)/IR = RCfR = [(5.67 × 10^-3)/I](89/60)R = 3.99 kΩ

Therefore, the value of the resistance, given that a heart pacemaker fires 89 times a minute, and each time a 36.0-nf capacitor is charged to 0.632 of its full voltage, is 3.99 kΩ.

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The acceleration of the eraser is 169.19 m/s².

A body travelling in a circle has centripetal acceleration. Due to the fact that velocity is a vector quantity (i.e., it has both a magnitude and a direction), when a body travels in a circle, its direction is continually changing, which causes a change in velocity, which results in an acceleration.

Given that angular velocity of the eraser: ω = 127 rpm

= 126×2π/60 radian/second

= 13.2 radian/second.

radius of the circle: r = 0.974 meter.

Hence, its centripetal acceleration is = ω²r

= 13.2×13.2×0.974 m/s²

=169.19 m/s².

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" 50 W " means " 50 Watts "  or  " 50 Joules per second ".

(500,002 J) / (50 J/sec)  =  10,000.04 seconds

(That's 2 hours 46 minutes 40.04 seconds.)

Answer:

A measurement standard is a quantity that people agree to use as a comparison. Standards are important because they allow measurements to be compared even if different people in different parts of the world take them.

Hope this helps ⊂◉‿◉つ

From the options provided in the question, the measurement which is not an SI base unit is volume.

This is referred to as the standard and fundamental unit of measurement of various quantities or variables which is defined arbitrarily and not by combinations of other units.

Volume is a quantity which is derived from the combination of lengths in a  three-dimensional manner which is why the formula is length× breadth×height and the unit is cm³. This is gotten from the combination of the unit of length which is cm.

This is therefore the reason why volume was chosen as the most appropriate choice.

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Option B: The friction force is a horizontal force applied to the box by the floor. This is due to Newton's third law of motion, which states that every action has an equal and opposite reaction.

The reaction force is a horizontal force in the opposite direction applied by the box to the floor.
When you drag a heavy box along a rough horizontal floor, the force of friction is acting in the opposite direction to the motion of the box.

This frictional force is due to the irregularities in the surface of the floor that oppose the movement of the box. According to Newton's third law of motion, every action has an equal and opposite reaction. Therefore, the reaction force to the friction force on the box is a horizontal force in the opposite direction applied by the box to the floor.

Hence ,The reaction force to the friction force on the box is a horizontal force in the opposite direction applied by the box to the floor. This is due to Newton's third law of motion, which states that every action has an equal and opposite reaction.

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The sound signal helps to caution and let other people know the exact

position or location during sailing in limited visibility conditions.

Sailors are in which charge of controlling and movement of ships. In limited

visibility conditions such as during fogs, one prolonged blast plus two short

blasts every two minutes are done.

This helps to alert people and other sailors of their location at sea to prevent

accidents and death.

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The sound signal helps to know the exact location during sailing in foggy conditions.

Sailors are the in charge of controlling and movement of ships. In limited visibility conditions such as fogs, one prolonged blast plus two short blasts every two minutes are done.

This helps to caution people and other sailors around their location at the sea to prevent accidents and death.

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As one scale for another, both scales are connected. One unit on the Kelvin scale is equivalent to one degree on the Celsius scale. The zero points of the thermometer are the only distinction between these two scales.

Because the zero point is the absolute limit of how cold anything can become, the Kelvin temperature scale is also known as the absolute temperature scale. i.e., the temperature at absolute zero is  \(-273\)Degrees Celsius (0 K).

Absolute zero (0 K) on the Kelvin scale is the temperature at which a gas's volume is zero. Since it is below zero on all temperature scales, it is the lowest possible temperature. Thus, -273.15 oC is the Kelvin scale's zero.

With the non-scientific temperature scales, absolute zero isn't even zero. The temperature is -273.15 degrees Celsius, or -459.67 degrees Fahrenheit.

Therefore, The kelvin scale has its zero set to absolute zero, which is the lowest possible temperature that exists in the universe.

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The total time, in minutes, of a car that traveled 60km at a speed of 20km/hr is 3 hours.

Average speed is the rate of motion or action or specifically the magnitude of the velocity.

The average speed of a body can be calculated by dividing the distance moved by the time taken as follows:

Average speed = Distance/time

According to this question, a car traveled 60 km at a speed of 20 km/hr. The time taken can be calculated as follows:

Time = 60km ÷ 20km/hr

Time = 3hr

Therefore, the total time, in minutes, of a car that traveled 60km at a speed of 20km/hr is 3 hours.

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The work done by the spring on the block is -1 Joule.

In the given question, we are given that a block of mass 2 kg is attached to a spring whose spring constant is k = 8 N/m. The block slides on an incline with θ = 37º and uk = 0.45. Also, the block starts at rest with the spring in relaxed position.

We have to calculate the work done by the spring on the block if the block has slid a distance of 0.5 m down the incline.

Using energy conservation, we know that the potential energy of the spring gets converted into kinetic and potential energies of the block in the presence of friction. Therefore, work done by the spring = - change in potential energy of the spring

The work done by the spring on the block can be calculated by finding the change in the potential energy of the spring. Using the formula for the potential energy of the spring, we get:

Potential energy of the spring = \(1/2 k x²\)

where k is the spring constant and x is the displacement of the spring from its relaxed position. Here, the spring is stretched by a distance x = 0.5 m when the block slides down the incline. Therefore, the potential energy of the spring at this position is:

Potential energy of the spring = 1/2 k x²

= 1/2 × 8 × (0.5)²= 1 Joule (approx)

Now, using the work-energy principle, we know that the work done by all the forces acting on the block is equal to the change in its kinetic energy. Therefore, the work done by the spring on the block can be calculated as follows:

Total work done on the block = Change in kinetic energy of the block + Work done by friction

where the change in kinetic energy of the block is given by:

Change in kinetic energy of the block = 1/2 m v²

where m is the mass of the block and v is its final velocity. Here, the block starts from rest, so its initial velocity is zero. Also, we know that the block slides a distance of 0.5 m down the incline. Therefore, the height of the incline is given by:\(h = x sin θ= 0.5 sin 37º= 0.3 m\)

Now, using the conservation of energy, we can write:

Potential energy at the top of the incline = Kinetic energy at the bottom of the incline + Potential energy lost due to friction + Work done by the spring

\(mgh = 1/2 m v² + μk N s\)

- 1 + 1= 1/2 m v² + μk

m g h - 1 + 1

where m is the mass of the block, g is the acceleration due to gravity, μk is the coefficient of kinetic friction, N is the normal force acting on the block, s is the distance moved by the block, and h is the height of the incline. Here, the normal force acting on the block is given by:

N = m g cos θ= 2 × 9.8 × cos 37º= 15.53 N (approx)

Therefore, substituting the given values, we get:

\(2 × 9.8 × 0.3 = 1/2 × 2 × v² + 0.45 × 15.53 × 5 - 1 + 1\)

= 1 × v² + 6.9875 v - 6.37375

where we have taken the positive direction to be downwards.

Solving this equation for v, we get:

v = -1.965 m/s (approx)

Therefore, the change in kinetic energy of the block is given by:

Change in kinetic energy of the block = 1/2 m v²= 1/2 × 2 × (-1.965)²= 3.8385 J (approx)

Finally, substituting the given values, we get:

Work done by the spring = - Change in potential energy of the spring= - 1 J (approx)

Therefore, the work done by the spring on the block is -1 J (approx).

The work done by the spring on the block is -1 Joule.

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at position one potential energy will be maximum

because PE = mgh and height will be maximum at position 1

please mark as brainliest, only 1 more brainliest is required to reach next level.

Answer:

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another.

Explanation:

Hope this helped, Have a Great Day!!

Answer:

A) 0.25 Hz

B) 6 m

C) 1.5 m/s

Explanation:

The number of waves that pass a certain spot every 20 seconds = 5 waves

The distance between the crest = 6 m

A) The frequency of the wave, f = The number of cycles per second = 5/20 = 0.25 per second = 0.25 Hz

B) The wavelength of the wave, λ = The distance between crests = 6 m

C) The velocity of the wave, v = f × λ = 0.25/s × 6 m = 1.5 m/s.