f a substance is ionic, then it likely will

Answer:

y = (-1/3)x + 5

Explanation:

the gradient of required equation (m2)

the gradient of given equation (m1) = 3

m1*m2 = -1 ( they are perpendicular)

3*m2 = -1

m2 = -1/3

required equation

y = m2 + c

( 9,2) satisfy the above equation

2 = (-1/3)*9 + c

c = 5

y = (-1/3)x + 5

Planet that the person is standing on is Earth. However, it is also possible that the person is standing on a planet or moon with a similar acceleration due to gravity.

The weight of an object is the force exerted on it by gravity, and it is equal to the mass of the object multiplied by the acceleration due to gravity. The acceleration due to gravity is a measure of the strength of the gravitational field at a particular location, and it is denoted by the symbol g.

The weight of an object can be calculated using the equation:

Weight = Mass * g

In this case, the person has a mass of 35.0 kg and a weight of 343 N. To determine the acceleration due to gravity at the location where the person is standing, we can rearrange the equation above to solve for g:

g = Weight / Mass

Plugging in the values given, we get:

g = 343 N / 35.0 kg

This simplifies to:

g = 9.8 m/s^2

This table shows the acceleration due to gravity on four different planets what planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N mercury is 3.59 Venus 8.87 Earth 9.81 mars 3.77

A.mercury

B.Venus

C.earth

D. Mars

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Answer:

C should be the correct answer,

Explanation:

The gas which produce heat in the atmosphere as it is increased is called a greenhouse gas.  Gases like argon , nitrogen, and Oxygen etc. is not a greenhouse gas. Since O3 is not a greenhouse gas it cannot produce heat in the atmosphere .

Hope you understand,

The distance of separation of the balls is 3.07×10⁻⁵ m.

To Solve the question, we use the formula below.

Formula:

Where:

Make r the subject of the equation,

From the question,

Given:

Substitute these values into equation 2

Hence, the distance of separation of the balls is 3.07×10⁻⁵ m.

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Answer:

The resultant of the vector is 6.63 km

Explanation:

Given;

vector A = 2.3 km 45°

vector B = 4.8 km 90°

The vectors in the x - direction is given by;

Aₓ = 2.3 km Cos 45° = 1.6263 km

Bₓ = 4.8 km Cos 90° = 0

The sum of the vectors in x -direction is given by;

∑X =  1.6263 km + 0 = 1.6263 km

The vectors in the y - direction is given by;

Ay = 2.3 km Sin 45 = 1.6263 km

By = 4.8 km Sin 90° = 4.8 km

The sum of the vectors in y -direction is given by;

∑Y =  1.6263 km + 4.8 km = 6.4263 km

The resultant vector is given by;

R = √(X² + Y²)

R = √[(1.6263)² + (6.4263)²]

R = 6.63 km

Therefore, the resultant of the vector is 6.63 km

The resultant displacement of the two vectors A and B is 6.63 Km and this can be determined by using the given data.

Given :

The two vectors: A = 2.3 km at 45 degrees B = 4.8 km at 90 degrees.

In order to determine the resultant displacement, first, determine the vector in x-direction:

\(\rm A_x=2.3cos45=1.6263 \;Km\)

\(\rm B_x=4.8cos90=0 \;Km\)

Now, the sum of the vectors is given by:

\(\rm \sum X=1.6263+0=1.6263\;Km\)

In order to determine the resultant displacement, first, determine the vector in y-direction:

\(\rm A_y=2.3sin45=1.6263 \;Km\)

\(\rm B_y=4.8sin90=4.8 \;Km\)

Now, the sum of the vectors is given by:

\(\rm \sum Y = 1.6263+4.8=6.4263\)

Now, the resultant vector is given by:

\(\rm R = \sqrt{X^2+Y^2}\)

\(\rm R=\sqrt{(1.6263)^2+(6.4263)^2}\)

R = 6.63 Km

The resultant displacement of the two vectors A and B is 6.63 Km.

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Answer:

That equation is called Hooke law, and it is:

F = -k•x

Where F represent the force, k is the spring constant, and x is the displacement (extension) of the spring

Answer:

F = -k × x

Explanation:

As an equation, F = kx, where F is the force we apply, k is the spring constant, and x is the extension of the material (typically in meters).

The balanced reaction of combustion of a fuel is 6H2O + 4CO2 = 2C2H6 + 7O2 which produces oxygen.

Combustion is a chemical reaction during which a fuel is oxidized and a large quantity of energy is released. The oxidizer is often air. Fuel: any material that can be burned to release thermal energy. Most familiar fuels are hydrocarbons and are denoted by the general formula of CnHm. For example octane is C8H18.

A combustion process is complete if all the carbon in the fuel burns to CO2, all the hydrogen burns to H2O, and all the sulfur (if any) burns to SO2. That is, all the combustible components of a fuel are burned to completion during a complete combustion process.

In actual combustion processes, it is common practice to use more air than the stoichiometric amount to increase the chances of complete combustion or to control the temperature of the combustion chamber. The amount of air in excess of the stoichiometric amount is called excess air.

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Balanced reaction of combustion of a energy is 6H2O 4CO2 = 2C2H6 7O2 which produces oxygen.

Combustion can be defined as a chemical response in which which a energy is oxidized and a large volume of energy is released. The oxidizer is frequently air. Energy any material that can be burned to release thermal energy. utmost familiar energies are hydrocarbons and are denoted by the general formula of CnHm. For illustration octane is C8H18.

A combustion process is complete if all the carbon in the energy burns to CO2, all the hydrogen burns to H2O, and all the sulfur( if any) burns to SO2. That is, all the combustive factors of a energy are burned to completion during a complete combustion process.

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The pair of spacecraft that both orbited and landed on the surface of Mars in 1976 were called Viking 1 and Viking 2.

The Viking program was a series of missions launched by NASA in the 1970s with the goal of studying the surface and atmosphere of Mars. The Viking 1 and Viking 2 spacecraft were each comprised of an orbiter and a lander, which were designed to work together to gather scientific data about the Red Planet.

After entering orbit around Mars, the orbiters sent back high-resolution images of the planet's surface, while the landers touched down on different areas and conducted experiments to analyze the soil, atmosphere, and other characteristics of Mars.

The Viking missions provided a wealth of information about the planet and paved the way for future exploration of Mars by robotic and human missions.

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Answer:

kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity.

pls mark as branliest

The average power carried by the wave is 0.262. When amplitude is halved, the average power decreases by 4 to 0.065W.

a) The averaged power of a wave on a string is given by Pavg = 1/2 (√(µF)) A^2 w^2

According to the given data,

Mass of piano wire m = 3g = 0.00345kg

Length of piano wire l = 80cm = 0.8m

Tension F = 30 N

Frequency f = 120 Hz

Amplitude A = 1.6mm = 0.0016m

Angular frequency ω = 2πf = 2π (120) = 240π s^-1

Linear mass density μ = m/l = 0.00345/0.8 = 0.00431 kg/m

Hence,

Pavg = 1/2 (√(0.00431*30)) 〖0.0016〗^2 〖(240π)〗^2

Pavg = 0.262W

b) As the average power is always proportional to the square of amplitude, hence

Pavg1/Pavg2 = (A1/A2)^2

0.262/Pavg2 = (0.0016/0.0008)^2

0.262/Pavg2 = 4

Pavg2 = 0.065W

Note: The question is incomplete. The complete question probably is: A piano wire with mass 3.45g and length 80.0 cm is stretched with a tension of 30.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire. (a) Calculate the average power carried by the wave. (b) What happens to the average power if the wave amplitude is halved.

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The x-component of the electric field (Ex) at point P is (a) 1.55 × 10⁴ N/C.

and the y-component of the electric field (Ey) at point P is (b) 2.07 × 10⁴ N/C.

(a) To find the x-component of the electric field at point P, we need to calculate the electric field due to each charge separately and then sum them up.

The electric field due to charge q₁ at the origin is:

E₁ₓ = k * (q₁ / r₁²),

where q₁ = -8.5 nC and r₁ = √(a² + b²) = √((1.2 m)² + (2.7 m)²).

Substituting the values into the equation, we get:

E₁ₓ = (8.99 × 10^9 N m²/C²) * (-8.5 × 10⁻⁹ C) / ((1.2 m)² + (2.7 m)²) = -4.57 × 10³ N/C.

The electric field due to charge q₂ at (a, 0) is:

E₂ₓ = k * (q₂ / r₂²),

where q₂ = 1.5 nC and r₂ = a = 1.2 m.

Substituting the values, we get:

E₂ₓ = (8.99 × 10^9 N m²/C²) * (1.5 × 10⁻⁹ C) / (1.2 m)² = 1.87 × 10^4 N/C.

The x-component of the total electric field at point P is the sum of the individual x-components:

Eₓ = E₁ₓ + E₂ₓ = -4.57 × 10^3 N/C + 1.87 × 10⁴ N/C = 1.55 × 10⁴ N/C.

(b) To find the y-component of the electric field at point P, we need to calculate the electric field due to each charge separately and then sum them up.

The electric field due to charge q₁ at the origin is:

E₁ᵧ = 0, since charge q₁ is located along the x-axis.

The electric field due to charge q₂ at (a, 0) is:

E₂ᵧ = k * (q₂ / r₂²),

where q₂ = 1.5 nC and r₂ = a = 1.2 m.

Substituting the values, we get:

E₂ᵧ = (8.99 × 10⁹ N m²/C²) * (1.5 × 10⁻⁹ C) / (1.2 m)² = 2.24 × 10⁴ N/C.

The y-component of the total electric field at point P is the sum of the individual y-components:

Eᵧ = E₁ᵧ + E₂ᵧ = 0 + 2.24 × 10⁴ N/C = 2.24 × 10⁴ N/C.

Therefore, at point P, the x-component of the electric field (Eₓ) is 1.55 × 10⁴ N/C, and the y-component of the electric field (Eᵧ) is 2.07 × 10⁴ N/C.

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Answer:

14m/s

Explanation:

Given data

M1=45kg

U1=2m/s

M2=90kg

U2=7m/s

V1=?

V2=1m/s

Applying the expression for elastic collision

M1U1+M2U2=M1V1+M2V2

Substitute

45*2+90*7=45*V1+90*1

90+630=45V1+90

720-90=45V1

630=45V1

Divide both sides by 46

V1=630/45

V1=7.5m/s

Hence Bruce's speed is 14m/s

Answer:

Explanation:

The frictionless surface implies that the speed of the spring is at a max. When the speed of the spring is at its max, the potential energy in the spring is 0. Use the equation for the Total Energy in a Spring/Mass System:

KE + PE = \(\frac{1}{2}kA^2\) where KE is the Kinetic Energy available to the spring, PE is the potential energy available to the spring, and the sum of those is equal to one-half times the spring constant, k, times the amplitude of the spring's movement away from the equilibrium position. Sometimes this amplitude is the same as the displacement of the spring. This can be tricky. But since we are only given one value for the distance, we are going to use it as an amplitude. Keeping in mind that the PE is 0 when KE is at its max, then the equation becomes

KE + 0 = \(\frac{1}{2}kA^2\) or to put it simpler terms:

KE = \(\frac{1}{2}kA^2\) We need to find the value for KE before we can fully solve the problem we are being tasked with.

Filling in using the info given:

\(KE=\frac{1}{2}(2.0)(.06)^2\) Notice I added another place of significance to the 2 because 1 simply isn't enough and the physics teacher in me can't handle that. Simplifying a bit:

\(KE=(.06)^2\) because the k = 2 cancels out the 2 in the denominator of the 1/2. So

KE = 3.6 × \(10^{-3\)

Now plug that in for KE and solve for v:

KE = \(\frac{1}{2}mv^2\):

\(3.6*10^{-3}=\frac{1}{2}(5.0)v^2\) and

\(v=\sqrt{\frac{2(3.6*10^{-3})}{5.0} }\) gives us a velocity of

v= \(3.8*10^{-2\)

Answer:

C

Explanation:

Correct option is C)

Total quantity of juice =2 L 250 ml

=2.250 L

Number of glasses =9

∴ Quantity of juice in 1 glass

=(2.250÷9)L=0.250 L=250 ml.

Answer:

2.6 seconds

Explanation:

You have to divide the distance by the velocity to find the time:

46/18 = 2.55 ≈ 2.6 seconds

The answer you are looking for is approximately 2.6 seconds.

Solution/Explanation:

To get the correct answer, you must divide the distance and velocity.

This means that 46÷18=2.5556.

2.5556≈2.6.

So, therefore, the final answer is approximately 2.6 seconds.

I hope that this has helped you. Enjoy your day, and take care.

The algorithm performs a logarithmic search in an array with time complexity O(logzn).

An algorithm to search for a value in an array with a time complexity of O(logzn), assuming the array is sorted in ascending order:

Initialize two variables, "start" and "end," to represent the range of the array to be searched. Set "start" to 0 and "end" to the length of the array minus 1.

While "start" is less than or equal to "end," do the following steps:

a. Calculate the middle index of the current range using the formula: middle = start + ((end - start) / z).

b. If the value at the middle index is equal to the target value, return the middle index as the position of the target value in the array.

c. If the value at the middle index is less than the target value, update "start" to middle + 1 to search in the right half of the array.

d. If the value at the middle index is greater than the target value, update "end" to middle - 1 to search in the left half of the array.

If the target value is not found after the while loop, return -1 to indicate that the value is not present in the array.

The algorithm divides the search range by the factor "z" at each step, similar to how binary search divides the range in half. This logarithmic division of the search space leads to a time complexity of O(logzn).

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Answer:

5

Explanation:

10/2 = 5

Answer:

we have to use the formula f=ma to find out the unknown force

Explanation:

mass = 9kg

accelration=3m/s^2

force = mass * acceleration

force = 9 * 3

force = 27 N(newton)

Answer: 0.25 m/s

Explanation:  Speed = wavelengt · frequency  

v = λf   and frequency is 1/period  f = 1/T

Then v = λ/T = 5 m / 20 s = 0.25 m/s

Answer:

C. A glass of lemonade starting to freeze in a warm room.

Explanation:

This is because there is no source of cold to properly freeze the lemonade, freezing happens when a cold source starts to slow down the movement of atoms. So if there's nothing there to freeze it, it can't freeze.

Alternatively, there are some materials that harden when not subjected to heat, but that's not freezing. It's just cooling.

Answer:

20 m

Explanation:

The ball travels 4 m up, then 16 m down.  It travels a total distance of 20 m.

The age and size of our solar system are significantly smaller when compared to the age and size of the universe.

The estimated age of our solar system is around 4.6 billion years. This age is based on scientific evidence and dating techniques that provide insights into the formation and evolution of our Sun and the planets.

In contrast, the age of the universe is estimated to be approximately 13.8 billion years. This age is determined through observations of cosmic microwave background radiation, the expansion of the universe, and other astrophysical measurements.

The size of our solar system is relatively small compared to the vast expanse of the universe. The solar system consists of the Sun, eight planets, their moons, asteroids, comets, and other celestial bodies. The extent of the solar system is often measured by the farthest orbiting object, which is currently considered to be Voyager 1, about 22 billion kilometers away from the Sun.

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Answer:

Explanation:

Acceleration is negative, if object is going forward, speed decreases, if object is going backwards, speed increases.

Hope this helped!

Have a great day!

If the acceleration and velocity have the same sign, the object will accelerate. If the acceleration is of the opposing sign as the velocity, the object will slow down.

Acceleration is the rate at which velocity changes over time, both in terms of speed and direction. A point or object moving in a straight line is accelerated if it accelerates or decelerates.

A positive velocity is assigned to an object that moves in the positive direction. When an object accelerates, its acceleration vector is directed in the same direction as its motion (in this case, a positive acceleration).

A positive velocity is assigned to an object that moves in the positive direction. When an object slows down, its acceleration vector is oriented in the opposite direction as its motion (in this case, a negative acceleration).

Thus, When velocity is positive and acceleration is negative, the object's motion will slow down.

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It accelerates at about 32 feet per second every second, so it starts falling at zero feet per second and, one second later it is traveling at 32 feet per second. That means that its average speed is 16 feet per second, so it will fall 16 feet in the first second.

Answer:

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes.

Matter can neither be generated nor destroyed, according to the law of conservation of mass. Antoine Lavoisier, a French chemist, created the Law of Conservation of Mass in (1789).

This Law of Conservation of Mass states  that in a chemical process, matter cannot be either created or destroyed. For instance, the matter of the soot and gases produced when a candle melts is equal to the quantity of the wax and oxygen at the beginning of the reaction.

The law of conservation of mass states that during any physical or chemical change, neither new matter nor existing matter are created or destroyed. It might, however, transform between many forms. The experiment given below will assist you in confirming the law of conservation of mass.

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