An object is raised by a height of 8.95 m and gains 3099.1 J in its gravitational potential store. If the object has a mass of 961.1 kg, what is the strength of the gravitational field in N/kg? Give your answer to 2 decimal places.

Answer:

A) half the original force

Answer:

2.3 m/s2

Explanation:

F = ma

a = F/m

a = 10.8 / 4.6

a = 2.3 m/s2

I hope this helps.

Usually it appears that the moon is moving because of the clouds! if there's no clouds then it's just kinda an illusion you get in the car lol because the car moves but the moon stays in the same place, and because it's so big you can see it anywhere!

Nerdy answer: Because Earth rotates on its axis from west to east :I

Usually it appears that the moon is moving because of the clouds! if there's no clouds then it's just kinda an illusion you get in the car lol because the car moves but the moon stays in the same place, and because it's so big you can see it anywhere! Nerdy answer: Because Earth rotates on its axis from west to east :I

Answer:

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.

Explanation:

An atom has an equal quantity of positive and negative electric charges (the protons and electrons) when its electron and proton counts are equal (the protons). Since the atom has a total electric charge of zero, it is referred regarded as being neutral.

The atom is the smallest unit of matter that may be divided without resulting in electrically charged particles. Additionally, it is the tiniest substance with features like chemical elements. The atom is therefore the basic building block of chemistry.

Examine different electron arrangements in the electron shells that surround an atom's nucleus.

Examine different electron arrangements in the electron shells that surround an atom's nucleus. The rest is made up of a cloud of negatively charged electrons surrounding a positively charged nucleus made up of protons and neutrons. Compared to electrons, which are the lightest charged particles in nature, the nucleus is small and dense.

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Starting from rest, the disc completes \(\theta\) revolutions after \(t\) seconds according to

\(\theta=\dfrac\alpha2t^2\)

with angular acceleration \(\alpha\). It completes 10 rev in 2 s, which means

\(10\,\mathrm{rev}=\dfrac\alpha2(2\,\mathrm s)^2\implies\alpha=5\dfrac{\rm rev}{\mathrm s^2}\)

Find the time it takes to complete 20 rev with this acceleration:

\(20\,\mathrm{rev}=\dfrac12\left(5\dfrac{\rm rev}{\mathrm s^2}\right)t^2\implies t=\sqrt8\,\mathrm s\approx2.83\,\mathrm s\)

so it takes approximately 0.83 s to complete 10 more rev.

Answer: Noise above 70 dB can cause hearing damage

Explanation:

Answer:

The decibel level that starts to have hearing damage is 120 dB.

Explanation:

The gauge pressure of the pipe is  2.234 ×10⁴  Pa, if the pipe is changed for another twice the area.

To find the gauge pressure the values given are,

speed of water = 2.5 m/s

Gauge pressure = 2×10⁴  Pa

Definition:

      Pressure can be defined as the total applied force per unit of area. The pressure depends both on externally applied force as well the area on which it is applied.

To find the gauge pressure first we have use continuity equation,

A ₁V₁ = A₂V₂

By the given condition: As the area is increased to twice the original area

A ₁V₁ = 2A₁V₂

A₁ gets cancelled on both the sides,

V₂ =V₁/2

    =2.5 /2

V₂=1.25 m/s

Then, substituting the values in Bernoulli's equation,

Equation is given as,

P₁ + 1/2 ρV₁² = P₂ + 1/2 ρV₂²

Taking 1/2 ρ as common,

P₂ =  2×10⁴ + 1/2 ×1000×(2.5² -1.25²)

    = 2×10⁴ + 2343.75

    =22343.75 Pa

    =2.234 ×10⁴ Pa

Thus, if the pipe is changed for another twice the area then the gauge pressure is 2.234 ×10⁴ Pa.

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D. Two substances must combine chemically.

One type of atom makes up an element, which is a white crystalline solid that cannot be divided into more than one component. Compounds are pure substances created by mixing two or more substances in a specific mass ratio.

Chemically pure substances that can be found in nature are called elements and compounds. An component is an object made of the same kinds of atoms as a compound, which is how they differ from one another.

It is common for the disorder to develop and the entropy of the system to increase as a result of the dispersion of molecules, atoms, and ions of one sort during the creation of a solution throughout a second substance.

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Measurement tools improve the quality and quantity of our lives by making them easier and safer. The ability to precisely quantify physical qualities has arguably enormous survival value, providing humans with an adaptive, evolutionary advantage refined over thousands of years of natural selection.

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A. The frequencies of the first two harmonics are approximately 1433.33 Hz and 2866.67 Hz. B. The corresponding sound wavelengths for the first two harmonics are approximately 24.0 cm and 12.0 cm.

Part A: The auditory canal acts as a resonant tube, and it can resonate at specific frequencies called harmonics. To determine the frequencies of the first two harmonics, we need to consider the length of the auditory canal. Given that the length of the canal is approximately 2.4 cm and the speed of sound in air is 344 m/s, we can use the formula for the fundamental frequency of a closed-closed tube:

f1 = (v / 4L) = (344 m/s / 4 * 0.024 m) ≈ 1433.33 Hz

To find the frequency of the second harmonic, we multiply the fundamental frequency by 2:

f2 = 2 * f1 ≈ 2866.67 Hz

Part B: To find the corresponding sound wavelengths for the first two harmonics, we can use the formula for the wavelength of a sound wave:

λ = v / f

For the first harmonic (f1 ≈ 1433.33 Hz):

λ1 = (344 m/s) / (1433.33 Hz) ≈ 0.240 m ≈ 24.0 cm

For the second harmonic (f2 ≈ 2866.67 Hz):

λ2 = (344 m/s) / (2866.67 Hz) ≈ 0.120 m ≈ 12.0 cm

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Answer:

I put both in an image so there is no plagiarizing.

Explanation:

Hope it helps!

The correct answer is: All of these answers are correct.

All the provided explanations can be plausible reasons for the low adoption of a cookstove intervention in rural Bangladesh. It is important to consider factors such as technology maintenance, regional cooking preferences, and the suitability of the chosen stove for the user's level of education.

All of these factors can significantly impact the acceptance and adoption of a new cooking technology.It would hinder their ability to effectively use and benefit from the intervention.

Considering these factors collectively provides insight into why the adoption rate remained low. Addressing these issues is crucial to improving the acceptance and success of cookstove interventions in rural communities.

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The statement that explains why James, who operates an apple orchard that sells a very rare type of gourmet apple, would probably choose not to participate in contract production is because he independently grows a unique product, he is already locked in to the best price of the market (option A).

Contract manufacturing or production occurs when a small business hires another company to produce its products.

This enables small business individuals to begin selling their products without obtaining the large amount of capital necessary to build and run a factory.

However, according to this question, James is a business individual who operates an apple orchard that sells a very rare type of gourmet apple.

Therefore, James would not need to participate in contract production because he independently grows a unique product, he is already locked in to the best price of the market.

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Answer:

true

Explanation:

1. Stance

2. Nock

3. Set Draw Hand

4. Set Bow Hand

5. Pre-Draw

6. Draw

7. Anchor

8. Aim

9. Shot Set Up

10. Release

11. Follow-Through & Reflect

The female whale is approximately 3,000 meters away from the male whale.

To calculate the distance between the male and female blue whales, we can use the formula:

Distance = (Speed of sound in water × Time) / 2

Given that the speed of sound in water is approximately 1,500 m/s and the time taken for the sound to return is 4 seconds, we can substitute these values into the formula:

Distance = (1,500 m/s × 4 s) / 2

Simplifying the equation:

Distance = (6,000 m) / 2

Distance = 3,000 m

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The time taken for the bee to reach the flower is 3.87 seconds.

The time of motion of the  bumblebee is calculated by applying the following kinematic equation as shown below.

s = vt + ¹/₂at²

where;

23.4 = 4.09t   +  ¹/₂(1.01)t²

23.4 = 4.09t + 0.505t²

0.505t² + 4.09t - 23.4 = 0

solve the quadratic equation using formula method;

t = 3.87 seconds

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Andrew's displacement while visiting his grandparents is 35 miles to the east.

The displacement is the shortest distance travelled by the particle. It is the vector quantity which represents both the magnitude and direction.

Given Andrew drives to his friend's house, which is 60 miles to the east. After visiting, he travels 25 miles to the west to visit his grandparents.

The displacement will be

60 miles to the east - 25 miles to the west = 35 miles to the east

Thus, the Andrew's displacement is 35 miles to the east.

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Answer:

Approximately \(0.29\; {\rm m \cdot s^{-1}}\).

Explanation:

Make use of the fact that total momentum is conserved in collisions.

The momentum of an object of mass \(m\) and velocity \(v\) is \(p = m\, v\).

The momentum of the two trolleys before the collision would be:

Thus, the total momentum of the two trolleys right before the collision would be \(2\; {\rm kg \cdot m \cdot s^{-1}}\).

Since the two trolleys are stuck to one another after the collision, they could modelled as one big trolley of mass \(m = 3\; {\rm kg} + 4\; {\rm kg} = 7\; {\rm kg}\).

The momentum of the two trolleys, combined, is conserved during the collision. Thus, the total momentum of the new trolley of mass \(m = 7\; {\rm kg}\) would continue to be \(v = 2\; {\rm kg \cdot m \cdot s^{-1}}\) shortly after the collision.

Rearrange the equation \(p = m\, v\) to find the velocity of the two trolleys combined:

\(\begin{aligned}v &= \frac{p}{m} \\ &= \frac{2\; {\rm kg \cdot m \cdot s^{-1}}}{7\; {\rm kg}} \\ &\approx 0.29\; {\rm m \cdot s^{-1}}\end{aligned}\).

Answer:

\(I_2=0.8586A\)

Explanation:

From the question we are told that:

Turns Ratio i.e\(\frac{N_2}{N_1}=\frac{1}{106} (step down)\)

Voltage \(v=170v\)

Primary current amplitude\(I_1= 8.10 mA =>8.10*10^{-3}A\)

Generally the equation for a Transformer is mathematically given by

\(\frac{E_1}{E_2}=\frac{I_2}{I_1}=\frac{N_1}{N_2}\)

Therefore

\(I_2=\frac{N_1}{N_2}*I_1\)

\(I_2=106*8.10*10^{-3}\)

\(I_2=0.8586A\)

The kettle with 3kW power taking 3 minutes to boil 500 cm³ of water perform a work of 540 KJ which is equivalent to the energy transferred by the kettle.

Power is the rate of work done by an object. Thus, power is the rate of work done. Work done on a body is equivalent to the energy of the body. Thus power is rate of energy too.

If a force applied on a body results in displacement, it is said to be work done on the body. The ratio of work done to the time is the power of the object.

P = w/t

then w = P t

Given that P = 3 kW for 3 minutes

3 minutes = 180 seconds

Then w = E = 3 × 180 = 540 KJ

Therefore, the energy transferred by the 3kW kettle in 3 minutes is 540 KJ.

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The force = 1.334 x 10⁴ N

Gravity is a force that arises because of the attraction between objects with mass.  

The magnitude of this attraction is proportional to the mass of the object.  

The greater the mass of the object, the greater the gravitational force  

Relationships can both be stated in  

Newton's Gravity Law:  

\(\rm F=G.\dfrac{m_1.m_2}{r^2}\)

with F = gravitational force,  N

G = gravitational constant,  6.67 x 10⁻¹¹ Nm²/kg²

m1, m2 = mass of object,  kg

r = distance between two objects.  m

m₁= 1 kg

m₂=2 x 10²⁰ kg

r = 1 x 10³ m

The force acting on the smaller object=The force acting on the larger object(Newton's Third Law)

\(\tt F=6.67\times 10^{-11}\dfrac{1\times 2.10^{20}}{(1\times 10^3)^2}\\\\F=1.334\times 10^4~N\)

Answer:

cannibalism

Explanation:

because she is eating her body!

Answer:

gadjgdasgdghgsdgd

Explanation:sorry need answer

Answer:

V * t = cm/sec * sec = cm

V * t should give distance as a result  -  

The other three fit the fundamental equations

the temperature at which the average velocity of an H2 molecule would be sufficient to escape Earth is  9,990 Kelvin. And the temperature at which the average velocity of an O2 molecule would be sufficient to escape Earth is approximately 2,740 Kelvin.

The average velocity of a gas molecule can be calculated using the root mean square (RMS) velocity, which is given by the equation:

v_rms = √(3kT/m)

Where v_rms is the RMS velocity, k is the Boltzmann constant (1.38 x 10^-23 J/K), T is the temperature in Kelvin, and m is the mass of the molecule.

a) For an H2 molecule with a mass of approximately 3.32 x 10^-27 kg, we can rearrange the equation to solve for temperature:

T = (v_rms^2 * m) / (3k)

Substituting the threshold velocity v_rms = 1.07 x 10^4 m/s, and the mass of H2 molecule m = 3.32 x 10^-27 kg, we can calculate the temperature:

T = (1.07 x 10^4 m/s)^2 * (3.32 x 10^-27 kg) / (3 * 1.38 x 10^-23 J/K) ≈ 9,990 K

Therefore, the temperature at which the average velocity of an H2 molecule would be sufficient to escape Earth is approximately 9,990 Kelvin.

b) Similarly, for an O2 molecule with a mass of approximately 5.32 x 10^-26 kg:

T = (v_rms^2 * m) / (3k)

Substituting the threshold velocity v_rms = 1.07 x 10^4 m/s, and the mass of O2 molecule m = 5.32 x 10^-26 kg, we can calculate the temperature:

T = (1.07 x 10^4 m/s)^2 * (5.32 x 10^-26 kg) / (3 * 1.38 x 10^-23 J/K) ≈ 2,740 K

Therefore, the temperature at which the average velocity of an O2 molecule would be sufficient to escape Earth is approximately 2,740 Kelvin.

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The molecules of water determines  the macro scale appearance of the lake .

The term lake is used to describe any large body of water that is surrounded by land. We know that water is composed of molecules and the orientation of molecules affect the macro scale appearance of the water.

Hence, as the molecules of water change their orientation, the macro scale appearance of the lake changes likewise.

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Answer:

No, the mass of an object is always the same, even if a chemical reaction happens or the object becomes denser.

Explanation:

Answer:

Explanation:

Total displacement towards north = 2.50 km - 4.3 km + 1.4 km

= -0.4 km

Displacement is a vector quantity so we took negative sign when direction reversed.

Total distance travelled = 2.5 + 4.3 + 1.4 km

= 8.2 km

Distance is a scalar quantity so no reversal of sign on reversal of direction.

Answer:v

Both prokaryotic and eukaryotic cells have similar features, like ribosomes, genetic material, a cytoplasm, and plasma membranes. There are two primary types of eukaryotic cells: animal and plant cells.

Explanation: