A scientist measures the growth of a bamboo plant over time. The table
below shows the results.
Time (hours)
Height (cm)
10
1.2
20
1.5
30
1.8
40
2.1
50
2.4
60
2.8
How tall was the bamboo plant after 20 hours?

Answer:

C. Photosynthesis

Explanation:

Photosynthesis is a process by which plants and photosynthetic bacteria obtain their food in presence of sunlight from water and carbon dioxide. They produce glucose as the food and oxygen is emitted as the byproduct. The equation for photosynthesis is - 6H2O+6CO2 → C6H12O6 + 6O2

Thus, the correct answer is 'C.Photosynthesis.'

0.45 m far is the spring compressed if 150 N force is used in a spring has a spring constant of 330 N/m

Define spring constant

The stiffness of the spring is quantified by the spring constant, k. For various materials and springs, it varies. The spring becomes stiffer and more challenging to stretch as the spring constant increases.

It is used to assess the stability or instability of a spring and, consequently, the system it is meant to serve. Its expression is given by the formula k = - F/x, which reworks Hooke's Law. where x is the displacement caused by the spring, given in N/m, and k is the spring constant.

Force = spring constant * extension

150 = 330 * extension

Extension  = 150/330

Extension = 0.45 m

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After going to the shops, a car driver places a bag of shopping on the passenger seat. during the journey home, the driver has to use the brakes to stop very suddenly. As the driver is wearing a seat belt the driver  nothing would happen to the driver.

Force is a term used to understand that if some external or internal affair which worked on a object which has some amount of mass and that creates a change in velocity, that affair is called the Force. It can be measured in dyne or newton.

As we know from the newtons first law where he explained the force,  he also explained about the force which acted on a body during the drive of any vehicle. That force called force because of movement. When some kind of mass drive a vehicle and it suddenly stops then the body tries to move forward. That causes the death of the driver.

But according to the question, the driver is wearing a seat belt. So the seat belt absorb the most amount of force in it because of its statistic nature. For this nature the driver will remain unharmed.

So from the above discussion we can say that, As the driver is wearing a seat belt the driver nothing would happen to the driver.

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Answer:

28.6 m/s

Explanation:

Using the equation for the range of a projectile,

R = U²sin2θ/g where U = initial speed of flaming pitch balls, θ = launch angle = 53° and g = acceleration due to gravity = 9.8 m/s²

Making U subject of the formula, we have

U = √(gR/sin2θ)

substituting the values of the variables into the equation given that R = 81.1 m, we have

U = √(9.8 m/s² × 81.1 m/sin2(53°))

U = √(794.78 m²/s²/sin106°)

U = √(794.78 m²/s²/0.9613)

U = √(826.78 m²/s²)

U = 28.75 m/s

U ≅ 28.6 m/s

Answer:

its  A. because since heat energy means thermal i think it is A and also When friction acts between two surfaces that are moving over each other, some kinetic energy is transformed into heat energy.

Explanation: your welcome and i hope its right

Answer:

conduction s convention s radiation

The longest wavelength of electromagnetic radiation that will eject photo-electron from the sodium metal is 544 nm.

Electromagnetic radiation consists of waves of electromagnetic field, which propagates through space and carries momentum and electromagnetic radiant energy.

Minimum energy required to knock out an electron from the surface of the metal is called the work function.

As we know that, W= hc/λ

h -- Planck's constant ; c -- Speed of light

and λ is Longest wavelength

Given, work function of sodium metal is 2.28 eV

As 1 eV = 1.6021 * 10^-19 J

=2.28 * 1.6021 * 10^-19

= 3.65 *10^-19 J

W= hc/ λ

3.65 *10^-19 = 6.62 *10^-34 * 3 *10^8/ λ

λ = 5.44 * 10 ^-7m

λ =544 nm

The longest wavelength of electromagnetic radiation that will eject photo-electron from the sodium metal is 544 nm.

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Answer:

The voltage that is required to run the train is found to be 12V.

Since the transformer has 600 turns in the primary coil and 60 turns in the secondary coil, the turns ratio is 600:60, which simplifies to 10:1. To find the voltage required to make the train run, we need to use the turns ratio equation,

Vp/Vs = Np/Ns, The voltages of the primary and secondary coils are Vp and Vs, respectively. The primary coil has Np turns, while the secondary coil has Ns turns.

We know that the household voltage supplied to the train is 120 V, which is the voltage in the primary coil (Vp). We want to find the voltage in the secondary coil (Vs). Substituting the values we know into the turns ratio equation, we get,

120/Vs = 10/1

Simplifying this equation, we get,

Vs = 12 V

Therefore, the voltage required to make the train run is 12 V.

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To calculate the total charge enclosed by the Gaussian surface, we need to integrate rho*dV. A good choice for dV, given the rho provided, would be the volume element in the appropriate coordinate system.

The charge density (rho) is the amount of charge per unit volume, and it depends on the specific distribution of charge within the given system.

The total charge enclosed by the Gaussian surface can be calculated by integrating rho*dV. A good choice for dV would be the volume element in the coordinate system that matches the symmetry of the charge distribution (e.g., cylindrical, spherical, or Cartesian coordinates).

To proceed, choose the appropriate coordinate system, express dV in terms of that system's coordinates, and then perform the integration.

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Answer:

less than one light year

Explanation:

earth is 0.00001581 light years away from the sun :)

To develop a rocket with a burnout velocity of 1000 m/s, the specific impulse (Isp) required needs to be calculated. The exit velocity (Ve or Vj) required for the rocket can be determined using the rocket motor equation. The burn time of the rocket can be found by considering the rocket's weight and acceleration over time.

Additionally, the speed of the rocket, assuming a flight path angle of 45 degrees and considering gravity, can be plotted.

1. Calculating Required Isp:

To calculate the required Isp, we use the rocket motor equation: Ve + (Pe - Pa)AC = (m0 / mf) * g0 * Isp, where Ve is the exit velocity, Pe is the pressure at the exit, Pa is the ambient pressure, AC is the throat cross-sectional area, m0 is the initial total mass (rocket weight + propellant weight), mf is the final total mass (rocket weight), g0 is the acceleration due to gravity, and Isp is the specific impulse.

Since the contribution of the pressure differential is ignored, the equation simplifies to Ve = (m0 / mf) * g0 * Isp.

Given the burnout velocity of 1000 m/s, we can substitute the values and solve for Isp.

2. Determining Exit Velocity:

Using the rocket motor equation and the burnout velocity, we can solve for the exit velocity (Ve). This value represents the speed at which exhaust gases leave the rocket nozzle.

3. Plotting Rocket Acceleration and Weight:

To plot the rocket acceleration as a function of time, we need to consider the mass of the rocket over time. Initially, the rocket weight is the sum of the rocket weight (300 kg) and propellant weight (800 kg). As the propellant burns, the rocket weight decreases, resulting in a changing acceleration.

4. Calculating Burn Time:

The burn time of the rocket can be determined by dividing the propellant weight (800 kg) by the propellant consumption rate, which is the mass flow rate of the propellant.

5. Plotting Rocket Speed:

Assuming a flight path angle of 45 degrees and neglecting gravity, the rocket's speed can be plotted over time. This plot represents the rocket's horizontal velocity.

6. Considering Gravity:

To plot the rocket's speed while considering gravity, we need to account for the vertical acceleration due to gravity. By considering the rocket's horizontal and vertical velocities, we can determine the overall speed of the rocket.

By following these steps, the required Isp, exit velocity, burn time, and velocity plots can be determined for the given rocket scenario.

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It will take 2.01 hrs. for the command module to complete one orbit.

The altitude given here is 133 km above the lunar surface .So the total distance of the command module will be radius of moon + 133 km fron the center of moon.

i.e.      r =  1.74 x 10⁶  + 0.133 x 10⁶ = 1.87 x 10⁶  m

Now for the time period of  one orbit we have the formula

                             T = ( 2π / \(\sqrt{GM}\) ) \(\sqrt[2]{r^{3} }\)

                             we have the value of r , so

                               \(\sqrt[2]{r^{3} }\)  = 2.55 x 10⁹

also the value of G = 6.67 x 10⁻¹¹ Nm²/kg² and

the value of  mass , M = 7.35 x 10²² kg  

                                 \(\sqrt{GM}\) = 2.21 x 10⁶

               T = (6.28 x 2.25 x 10⁹) / 2.21 x 10⁶  

                            T = 7.246 x 10³ sec

                          T = 2.01 hrs.

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Speed is defined as the pace of the distance traveled. It is represented by v

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity.

it is denoted by u for the initial speed while v for the final speed. its SI unit is m/sec.

Hence, speed is represented by v.

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Answer:

P = 113.4 N

Explanation:

We know that if it is on the Moon it has another gravity. Therefore, it is known through the International System that the gravity of the Moon is 1.62 m/s², so..

Data:

Use formula:

Replace and solve:

The man's weight is 113.4 Newtons.

Greetings.

Answer:

23: Acceleration 24:1m/s^2

Explanation:

\(a = (v_f - v_i) /delta(t)\\a=(16-10)/6\\a=6/6\\a=1m/s^2\)

The different types of WBCs with their description are as follows: neutrophil- polymorphonuclear (nucleus twisted and segmented), slightly pinkish granular cytoplasm, lymphocyte- large round nucleus takes up most of the space in the cell.

White blood cells (WBCs) are a major part of the body's immune system. They help the body in fighting infections and other related diseases. Different types of white blood cells include: granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).

Neutrophil are polymorphonuclear (nucleus twisted and segmented) and are slightly pinkish granular cytoplasm, lymphocyte are the large round nucleus that takes up most of the space in the cell and have a small cytoplasm ring around nucleus, monocyte are large cell, twice as big as red blood cell with the nucleus is bean or "C" shaped, eosinophil are the cells full of red-pink staining granules and the nucleus is bilobed, basophil are the cell which are full of dark-purple staining granules and nucleus is bilobed.

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Answer:

(a) The wavelength of the x-ray used to observe the first-order diffraction maximum is approximately 0.413 nm.

(b) The maximum number of orders that can be observed for this crystal at this wavelength is 1.

Explanation:

(a) To determine the wavelength of the x-ray used to observe the first-order diffraction maximum, we can use the Bragg's law, which relates the wavelength of the incident x-ray, the spacing between planes of atoms, and the angle of diffraction.

Bragg's law is given by:

nλ = 2d sinθ

Where:

n is the order of diffraction (in this case, n = 1 for the first-order diffraction)

λ is the wavelength of the x-ray

d is the spacing between planes of atoms

θ is the angle of diffraction (given as 12.6°)

Rearranging the equation to solve for λ, we have:

λ = (2d sinθ) / n

Substituting the given values:

d = 0.250 nm = 0.250 × 10^(-9) m

θ = 12.6° = 12.6 × π / 180 radians

n = 1

λ = (2 * 0.250 × 10^(-9) m * sin(12.6 × π / 180)) / 1

λ ≈ 0.413 × 10^(-9) m

(b) To determine the number of diffraction orders that can be observed, we need to consider the condition for constructive interference. For a given crystal, the number of orders that can be observed depends on the maximum value of n, which is determined by the crystal's characteristics and the wavelength of the incident x-ray.

In general, the number of orders that can be observed is given by:

n_max = 2d / λ

λ = 2 * 0.250 × 10^(-9) m * sin(12.6°)

λ ≈ 0.087 × 10^(-9) m

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Answer:

yes

Explanation:

An object can be elevated and moving at the same time, example: a thrown ball

Explanation:

Ofcourse! Objects can have both kinetic energy and potential energy at the same time.

Answer:

Your education back ground

Answer: D.

Explanation:

I just took a quiz im in highschool too and I got a 100

If you mix hot water and cold water in an isolated medium the mixture would have the temperature intermediate of the initial temperatures of the hot water and the cold water because of heat transfer.

How heat is transferred ?

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Answer

30 kg . m/sec

Explanation:

mark me as brainliest!

Answer:

20N

Explanation:

newtons 3rd law every action has an equal opposite reaction

I'm not too sure

Knowing about the inner planets helps to prove or disprove scientific theories made on earth. The exploration of inner planets gives the opportunity to learn about the processes that form and govern the evolution of planets and how earth's atmosphere might change in the future.

A planet can be defined as a large, round astronomical object that is neither a star nor its remnant. The theory used for the explanation of planet formation is known as the nebular hypothesis, which gives information that an interstellar cloud collapses out of a nebula to produce a young protostar orbited by a protoplanetary disk.

The planet grew in this disk through the accumulation of matter driven by gravity and this process called accretion. Our solar system has at least 8 planets that revolve around an axis tilted w.r.t. its orbital pole.

Therefore, knowing more about the inner planets help to learn more about the earth.

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Answer:

Data:

D = 2400 kg/m³

V = 0.20 m³

M = ?

∴ Density = \(\frac{Mass}{Volume}\)

2400 kg/ = \(\frac{Mass}{0.2 m^{3} }\)

Mass = 2400 kg/m³ × 0.20 m³

Mass = 480 kg (answer)

Answer:

Therefore, the mass of the block is 480 kg.

Answer:

The net external force on the apple is 9.18 N and the direction of net force is 82.6°.

Explanation:

Given that,

Force of gravity = 9.11 N

Force of wind = 1.18 N

We need to calculate the net external force on the apple

Using formula of net force

\(F'=\sqrt{(9.11)^2+(1.18)^2+2\times1.18\times9.11\cos90}\)

\(F'=9.18\ N\)

We need to calculate the direction of net force

Using formula of direction

\(\theta=\tan^{-1}(\dfrac{9.11}{1.18})\)

\(\theta=82.6^{\circ}\)

Hence, The net external force on the apple is 9.18 N and the direction of net force is 82.6°.

The magnitude of the net external force on the apple is 9.19 N and the direction of the net external force is 82.6⁰.

The given parameters;

The magnitude of the net external force on the apple is calculated as follows;

\(F= \sqrt{F_y^2 + F_x^2} \\\\F= \sqrt{9.11^2 + 1.18^2} \\\\F = 9.19 \ N\)

The direction of the net external force on the apple is calculated as follows;

\(\theta = tan^{-1}(\frac{F_y}{F_x} )\\\\\theta = tan^{-1}(\frac{9.11}{1.18} )\\\\\theta = 82.6 \ ^0\)

Thus, the magnitude of the net external force on the apple is 9.19 N and the direction of the net external force is 82.6⁰.

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There are no explanation answers for me to pick from.

Answer:1.36078

Explanation: