identify the types of elements in the schematic diagram give the number of each types

The required experimental percent error when boiling points of the liquid are given is calculated to be 8.33 %.

The student has performed the experiment to find out the boiling point of a liquid.

The experimental boiling point of the liquid is given as 72.

The actual boiling point of the liquid is given as 78.

Let us calculate the experimental percentage error.

The formula for experimental percentage error is known to be,

⇒ (Actual value - True value)/True value × 100 % = (78 - 72)/72 × 100 % = 8.33 %

Thus, the required experimental percent error is calculated to be 8.33 %.

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Answer:

Friction of the road on the motorcycle in the opposite direction

Explanation:

khan academy

The speed of light in a vacuum is the same for all frames of reference.

so "Light travels through space at a speed of 3.0 x 10^8 m/s."

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The statement that is not true is: "Departmental overhead rate method does not assign overhead on the basis of volume-related measures."

In reality, the departmental overhead rate method does assign overhead on the basis of volume-related measures. It allocates overhead costs to different departments based on the volume or level of activity that each department generates.

The departmental overhead rate method is a more refined approach compared to the plantwide overhead rate method because it allows for a more accurate allocation of overhead costs to specific departments based on their individual characteristics and activities.

By using multiple departmental rates rather than a single overhead rate, the accuracy of overhead costing is improved as it takes into account the specific cost drivers and activities of each department.

Therefore, the statement mentioned above is not true. The departmental overhead rate method does assign overhead on the basis of volume-related measures.

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Answer:

3s is longer

2s is shorter

Explanation:

A pendulum is made up of a ball which is referred to as a mass attached to a string which is usually massless.

A period is one swing of the pendulum over and back.

Two pendulums with the same length but different masses would have the same period

When two pendulums with different lengths, the pendulum with the longer length would have a longer frequency and thus the longer period while the pendulum with the shorter length wold have the shorter period

The shinny outer surface of an electric kettle reflects heat, which reduces energy loss. This helps to make the kettle more efficient, as it takes less energy to heat the water to the desired temperature.

What is the energy ?

Energy is the capacity for doing work. It is a fundamental concept in physics, and is defined as the ability to do work or transfer heat. It is a measurable quantity that can be converted into different forms, such as mechanical, electrical, thermal, chemical, or nuclear energy. Energy is necessary for all types of physical activities, including movement, growth, and development. It is also necessary for many natural processes, such as photosynthesis and respiration. In addition, energy is used to power many of the technologies we use in everyday life, such as computers and cars.

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Pluto's moon Charon is thought to have several similarities with our own Moon, including:

Tidal Locking: Just like our Moon, Charon is tidally locked with Pluto, meaning that it always shows the same face to Pluto as it orbits around it.

Composition: Both the Moon and Charon are composed of a mixture of rock and ice, with some craters and geological features similar to those found on our Moon.

Lack of Atmosphere: Neither Charon nor our Moon have a substantial atmosphere, though Charon does have a very thin one consisting of trace amounts of nitrogen and methane.

Size Ratio: Charon is unusually large compared to Pluto, with a diameter of about 1/9th that of Pluto. Similarly, our Moon is much larger compared to Earth, with a diameter of about 1/4th that of Earth.

These similarities suggest that Charon and our Moon may have formed in similar ways, possibly as a result of a giant impact during the early formation of their respective planets.

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Answer:

temperature inside the balloon so it is warmer than the surrounding air

Explanation:

For the balloon to get an uplift , it should be lighter than air . That means the density of the gas inside should be less than the density of air outside . only then ,  weight of the balloon plus the weight of the air inside balloon  will become less than the weight of displaced air outside . This can be achieved by warming up the air inside. Its temperature must exceed that of outside air.

The option that best explain how the pilot can make the balloon rise is option D. The pilot can increase the temperature inside the balloon so it is warmer than the surrounding air

An object will float in air when the density of the object is lower than the density of the air.

Increase in temperature of a gas decreases the density of the gas.

For the pilot to make the balloon rise, he must find a way to make the balloon more lighter than air. To do this, he has to increase the temperature of the balloon.

In this question, the pilot can increase the temperature inside the balloon so it is warmer than the surrounding air in order for the balloon to quickly rise several feet higher above some trees in distance.

Therefore, option D best explain how the pilot can make the balloon rise.

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Answer:

Explanation:

Since the forces oppose each other (direction), the smaller is subtracted from the larger. The net force is

Fn = 100 - 40 = 60

Part B

Fn = m * a

a = 3.5 m/s^2

Fn = 60

60 =  m * a

60 = m * 3.5           Divide by 3.5

60/3.5 = m

m = 17.143

Answer:

Explanation:

12

Answer:

the correct ones are: circles that come out of the upper part of the screen and enter the lower part

Explanation:

When an electric current flows through a wire, a magnetic field is produced, the direction of which is given by the right-hand rule, the thumb goes in the direction of the current, and the other closed fingers indicate the direction of the magnetic field.

in that case the thumb points to the right, which is why the fingers are outgoing and incoming circles on the pages, therefore the magnetic field creates concentric circles around the wire.

With these explanations we review the different statements,

the correct ones are: circles that come out of the upper part of the screen and enter the lower part,

Answer:

D.) circles around the wire that go in at the bottom of the screen and moves in a clockwise direction

Explanation:

It is correct on Edge

Answer:

Explanation:

∑ m / 5 = (12.45 + 12.32 + 12.54 + 12.30 + 12.50) / 5 = 12.42

Δm = 12.42 - 12.0 = 0.42

ε·100% = Δm·100% /  m = 0.42·100% / 12  ≈ 3.5 %

Answer:

d) 3.5%

In this circuit, a capacitor with a capacitance of 20.0 microfarads and a resistor with a resistance of 300.0 ohms are connected in series. When the capacitor is discharged, a voltage of 11.2 volts is measured across it.

When a capacitor discharges, the voltage across it decreases over time. In this problem, we are given that the voltage across the 20.0 microfarad capacitor is 11.2 volts. We need to find the voltage drop across the 300.0 ohm resistor.

Using Ohm's law, we can calculate the current flowing through the circuit as:

I = V0 / R = 11.2 V / 300.0 Ω = 0.0373 A

Now we can use this current to find the voltage drop across the resistor as:

V = IR = (0.0373 A) * (300.0 Ω) = 11.19 V

Therefore, the voltage drop across the 300.0 Ω resistor is 11.19 volts (rounded to two decimal places).

This calculation shows that a significant portion of the voltage has been dropped across the resistor, as expected in a simple RC circuit. The voltage across the capacitor will continue to decrease over time as the capacitor discharges, causing the voltage drop across the resistor to decrease as well.

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Answer:

Water

All life depends on water

Transpiration

Evaporation

Rain falls from the sky

Condensation

You cannot live without fresh water

Circulating water between ocean and atmosphere is part of water cycle

Liquid water to water vapor is evaporation

Energy from the sun drives the water cycle

Explanation:

The first letter of each word makes up WATERCYCLE.

I hope this helps!

The direction of the magnetic force on the positive charge would be perpendicular to both the direction of the velocity of the charge (upward) and the direction of the magnetic field (to the right), in accordance with the right-hand rule. Therefore, the magnetic force would be directed out of the page (or into the screen) in this scenario.

Step 1: Place your right hand flat with your fingers extended.
Step 2: Point your thumb in the direction of the positive charge's motion (upward).
Step 3: Point your fingers in the direction of the magnetic field (to the right).
Step 4: Curl your fingers in the direction of the magnetic field.
Step 5: Your palm will now be facing the direction of the magnetic force.

Following these steps, the direction of the magnetic force on the positive charge is out of the plane, towards you.

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The cradle behaves different due to higher force of gravity.

The Newton’s Cradle behave differently on a large planet such as Jupiter because of the higher gravitational force as compared to the earth. We know that the ball in the cradle that we moves upward comes back to hit the other ball due to force of gravity so if the gravity is increased than the ball on the other end did not move on a certain height due to strong force of attraction and may be the motion of the Newton’s Cradle stops or very slow. The gravity of Jupiter is 2.4 times higher than earth.

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When the wave crests of a transverse wave move closer together it means the wavelength is getting smaller.

The wavelength of a transverse wave is the distance from one peak to the next or from one dip to the next. The wavelength gets shorter as the crests or troughs get closer together. The wavelength increases as the distance between the crests and troughs increases.

One way to gauge the size of waves is by their wavelength. It is the separation of two matching waves' neighboring points. In a transverse wave, the medium's particles vibrate up and down perpendicular to the wave's path of propagation. A longitudinal wave's wavelength can be calculated as its length. A crest and a trough make up a transversal. The largest upward displacement is at the crest, while the maximum downward displacement is at the dip.

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Answer:

C. The wavelength is getting smaller.

Explanation:

The time taken by her to reach a speed of 2.28m/s is 1.37 s whereas, the acceleration on break to stop in 0.86s is 4.47 m/s².

( a ) To find the time we use the formula,

a = Δv / Δt

where,

a is acceleration,

Δv is change in speed

Δt is time

So with this putting the given value,

We have,

1.66m/s² =  2.28m/s / Δt

Δt = 2.28m/s / 1.66m/s²

Δt = 1.37 s

( b ) Again using same formula for acceleration

a = Δv / Δt

So,

a =  2.28m/s / 1.37 - 0.86s

a =   2.28m/s / 0.51 s

a = 4.47 m/s²

The rate of change of displacement is known as velocity. The rate at which velocity changes is called acceleration. Due to the fact that it includes both magnitude and direction, velocity is a vector quantity. As the rate at which velocity changes, acceleration is also a vector quantity.

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(a)The time has taken by a commuter to reach a speed of 2.28m/s is (t)= 1.37 s. (b) If she then brakes to a stop in 0.86s,Theamount of acceleration is (a)=   2.65 m/s².

The term velocity defines that how much distance a particle covered in a given time. The term acceleration defines that change in velocity in a particular time.

( a ) To calculate the time we use the formula, v=u+at

As the particle start from rest so, u= initial velocity would be zero.

The equation becomes, v=at

t=v/a

where, we are given

a= acceleration  of the car =1.66m/s²,

v= speed of the car= 2.28m/s

We have to calculate the time=t

So now we put the given value in the above equation, We have,

t=v/a

Or, t = 2.28m/s / 1.66m/s²

Or, t = 1.37 s

According to the calculation we can say that, The time has taken by a commuter to reach a speed of 2.28m/s is (t)= 1.37 s

( b ) To calculate the acceleration we use the formula, v=u+at

As the particle start from rest so, u= initial velocity would be zero.

The equation becomes, v=at

a=v/t

where, we are given

v= speed of the car= 2.28m/s

t= The time take to break=0.86 s

We have to calculate the acceleration=a

So now we put the given value in the above equation, We have,

a=v/t

Or, a =  2.28 /0.86

Or, a = 2.65 m/s²

According to the calculation we can say that, If she then brakes to a stop in 0.86s,Theamount of acceleration is (a)=  2.65 m/s²

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Answer:

47 kJoules (kJ)

Explanation:

Potential enegy on Earth is given by the relationship:

P.E. = mgh, where m is mass, g is the acceleration due to Earth's gravity, and h is height. Since we are given metric values, we will look for an answer that is consistent with Joules, the metric measure of energy. 1 Joule is defined as 1 kg*m^2/s^2, so we wnat units of kg, m, and sec.

We are given:

m = 95kg

h = 50 meters

Earth's gravity, g is 9.8 m/s^2

Enter the data:

P.E. = mgh

P.E. = (95kg)(9.8m/s^2)(50m)

P.E. = 46550 kg*m^2/s^2 or 46550 Joules(J)

Since we only have 2 sig figs, and since 1kJ =- 1000J

We can state the potential energy is 47kJ.

Spiderman has 47kJ of potential energy for the start of any dive back to Earth. [He needed that same amount of energy to reach that height, but we don't know from where it came. A jump, helicopter, beamed up by Scotty, or tossed up by Doctor Octopus.]

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Answer:

Viruses, bacteria, fungi, protozoa, helminths(worms)

Answer:

The number of turns in the solenoid is 19506.

Explanation:

Length of solenoid, L = 0.28 m

Magnetic field, B = 7 T

Current, I = 80 A

Let the number of turns is N.

The formula used to find the magnetic field is

\(B = \frac{\mu 0N I}{L}\\\\7 = \frac{4 \times 3.14\times 10^{-7}\times N\times 80}{0.28}\\\\N = 19506\)

It would take 1.556 seconds for the barrier to crumple and safely slow down the person with a force of 1180 N.

To calculate the time required to crumple the barrier and safely slow down the person, we can use the concept of impulse.

The impulse, denoted by J, is defined as the product of force and time, and it represents the change in momentum of an object. In this case, the impulse required to safely slow down the person can be calculated using the maximum force and the person's initial momentum.

The momentum of a person is given by the product of their mass and velocity:

Momentum = mass × velocity

Given that the person's mass is 68 kg and their velocity is 27 m/s, the initial momentum is:

Initial momentum = 68 kg × 27 m/s

To safely slow down the person, the impulse provided by the barrier should be equal to the change in momentum.

Therefore, we have:

Impulse provided by barrier = Final momentum - Initial momentum

Since the person is brought to rest, the final momentum is zero. Thus, we have:

Impulse provided by barrier = -Initial momentum

Now we can express the impulse in terms of force and time:

Impulse provided by barrier = Force × Time

Plugging in the known values, we can solve for time:

-Initial momentum = Force × Time

68 kg × 27 m/s = 1180 N × Time

Simplifying the equation, we find:

Time = (68 kg × 27 m/s) / 1180 N

Evaluating the expression:

Time = 1836 kg·m/s / 1180 N

Finally, converting kg·m/s to seconds, we get:

Time ≈ 1.5559 seconds

Therefore, it would take approximately 1.556 seconds for the barrier to crumple and safely slow down the person with a force of 1180 N.

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Answer:

25.13 ft

Explanation:

r = 4 feet

ω=0.25 revolution per minute

=1 revolution in  4 minutes  

total number of revolution N = 1 (in 4 minutes )

v=rω

distance traveled = 2×N×π×r

=2×1×π×4  

=8π

= 25.13ft in 4mins

Boyajian was looking at a starlight graph in the summer of 2013 and She noticed two dimming episodes from KIC 8462852 were two important data points in the light curve of star KIC 8462852.

The irregular drop and rise in brightness that does not follow a regular or expected pattern. This shift is caused by dust, which might be the result of a collision between two comets or the bursting of one. Another plausible, although less likely, reason is that the star is through unprecedented internal turmoil.

Boyajian was looking at a starlight graph in the summer of 2013 as part of a big data set acquired by the space-based Kepler telescope during its four-year mission to search for Earth-like planets near other stars. Dips in the quantity of light emitted by a star might signal the passage of a planet in front of it. The greater the size of the planet, the greater the light drop.

Boyajian's graph implied the existence of a planet larger than any scientist has ever seen — or something more crazier.She noticed two dimming episodes from KIC 8462852 during the 800th and 1,500th days of observation, when the star's luminosity reduced by 15% and 22%, respectively. A planet nearly 11 times the size of Jupiter of Earth, would result in a 1% drop — implying that whatever is circling KIC 8462852 is significantly larger than our solar system's greatest planet.

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Answer:

A rain guage is used to measure the precipitating rain in a given amount of time.

A thermometer is used to measures temperature.

A barometer is used to measure atmospheric pressure.

A anemometer is used to calculate wind speed

Explanation: