helllp faster
A ball is thrown straight up into air at 49m/s. How high does it go 100.5m.a O 122.5m.b O 110.5m.c O 111.5m.d O

Answer:

Bacteria

Explanation:

UV kills bacteria and its 8 letters

Dwight Phillips won the gold medal in the men's long jump at the 2004  Olympics in Athens with a leap of 8.59m. If the angle of his jump had been 23°, his takeoff speed would have been 9.66m per sec.

Given the distance of the jump (R) = 8.59m

The angle of jump (α) = 23°

From Newtons laws of motion, we know that R = u^2sin(2α)/g

where R is the horizontal distance, u is the initial speed and α is the angle of projection and g is the gravity.

Speed is referred to as a scalar of the vector that indicates the rate of position change when a particle travels any distance in a given amount of time in the study of kinetics. The rate of movement is based on speed.

Then, u^2 = Rg/sin(2α)

u^2 = 8.59 x 9.8/sin(2 x 23)

u = √84.182/0.9017

u = 9.66m/s

Hence the required take off speed is 9.66m/s

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If a coronal mass ejection occurs on the Sun that expels material directly toward Earth at a speed of 1,500 kilometers per second (km/s), it would take approximately 17 hours for these charged particles to reach Earth.

Coronal mass ejections (CMEs) are powerful eruptions of plasma and magnetic field from the Sun's corona. The time it takes for a CME to travel from the Sun to Earth depends on the speed of the particles and the distance between the Sun and Earth. Since the distance between the Sun and Earth is about 149.6 million kilometers, and the speed of the particles is 1,500 km/s, it would take approximately 17 hours for the CME to reach Earth. During this time, the particles can interact with the Earth's magnetic field, potentially causing geomagnetic storms and other space weather effects

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Answer:

The answer is C. Ralph: “I’m not sure about bananas. I’d have to think about it.”

Explanation:

I did the practice.

Answer:

C.) Ralph: "I'm not sure about bananas. I'd have to think about it."

Explanation:

Just took the practice

At 30 degrees Celsius, a saturated solution of KClO3 will contain approximately 24 grams.

Solution: Plagiarism is the act of taking someone else's work or ideas and passing them off as your own. It is an unethical practice and is considered an academic offense. To avoid plagiarism, it is important to properly cite any sources that are used, including quotes, facts, images, and any other type of borrowed material. Additionally, it is important to give credit to the original authors of any ideas or works that are used. It is also recommended to paraphrase or re-word any material that is borrowed, so that it is not presented in the same exact form as the original. By following these steps, you can ensure that your work is completely plagiarism-free.

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There are two correct statements ( b and c ) i.e. the current in a conductor is always proportional to the potential difference across the conductor and  the resistance of a conductor increases with increasing temperature.

a. False. The resistance of a conductor is not always constant. It can depend on factors such as the material, shape, and size of the conductor, as well as the temperature.

b. True. According to Ohm's law, the current in a conductor is directly proportional to the potential difference across the conductor. This means that if the potential difference increases, the current will also increase, and if the potential difference decreases, the current will also decrease.

c. True. The resistance of a conductor generally increases with increasing temperature. This is because the atoms in the conductor vibrate more at higher temperatures, which can make it harder for the electrons to flow through the conductor.

d. False. The resistance of a conductor is not necessarily constant if the temperature of the conductor is constant. It can depend on other factors such as the material, shape, and size of the conductor.

Therefore, the correct statements are b and c.

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Question - Tell which statement is correct and which is not justification? a. the resistance of a conductor is always constant.

b. the current in a conductor is always proportional to the potential difference across the conductor.

c. the resistance of a conductor increases with increasing temperature.

d. the resistance of a conductor is constant only if the temperature of the conductor is constant.

Inducing magnetic properties on a substance means you are aligning the electrons to spin in the same direction, 2nd option.

The magnetic intensity is the magnetic field produced solely by the electric current flowing in a solenoid. The magnetic property of a material is induced by an external magnetic field. When a material is exposed to an external magnetic field, it becomes magnetized.

A strong magnetic field is produced when the majority of electrons in an atom spin in the same direction. The magnetic field's direction is determined by the direction of electron spin.

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Answer:

6.66666 sec/m or 6 2/3 sec/m

Answer:

6.67 meters per second

Explanation:

120/18=6.67 meters per second

Happy Holidays!

Recall that:

Impulse = Change in Momentum = mass × change in velocity

Since both cars are identical and have the same initial velocity of 60 mph, them breaking to a stop means that they both experience the same change in velocity.

Thus, both of the cars' impulses are equal.

Answer:

The answer is

Explanation:

Using Boyle's law to find the final pressure

That's

\(P_1V_1 = P_2V_2\)

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final pressure

\(P_2 = \frac{P_1V_1}{V_2} \)

From the question

P1 = 115 kPa

V1 = 480 mL

V2 = 650 ml

So we have

\(P_2 = \frac{115000 \times 480}{650} = \frac{55200000}{650} \\ = 84923.076923...\)

We have the final answer as

Hope this helps you

Liquid containers are necessary to store liquids or other fluids, and are manufactured using various materials. These materials have unique properties and physical characteristics to meet the diverse requirements of different fluids and their storage conditions. Two of the materials used to make liquid containers are covalently bonded and metal.

1) Covalently bonded materials:Covalent bonds are strong bonds formed between atoms by sharing electrons. Covalently bonded materials are non-metallic materials that use a covalent bond between atoms to form the material. Examples of covalently bonded materials that can be used to manufacture liquid containers include:

- Polyethylene Terephthalate (PET): PET is a plastic material used to make water bottles and soft drink bottles. PET is lightweight and unbreakable, making it ideal for shipping and storing liquids.

- Polypropylene (PP): PP is a popular plastic material that is lightweight, durable, and resistant to chemical reactions. PP is used to make containers that store harsh chemicals and strong acids, as well as food containers, such as yogurt cups and margarine tubs.

In conclusion, there are many materials available that can be used to manufacture liquid containers, including covalently bonded materials and metals. The choice of material used depends on the type of liquid being stored and the storage conditions.

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The equivalent measurement of 11.5 milliamperes is 11.5 x 10⁻³ amperes.

The rate of flow of charge per unit cross - sectional area is called electric current. Mathematically -

i = dq/dt

From this -

dq = i dt

∫dq = ∫i dt

Q = it

Current is measured in amperes and is a Tensor quantity.

Given is a circuit that measured a current of 11.5 milli amperes.

Now, the current in milli amperes is used to give the measurement of small amount of current. One milliampere of current is equivalent to -

1 mA = (1/1000) A = 10 ⁻³ A

So, in order to calculate the total current in amperes, we will multiply 11.5 milliamperes by 10 ⁻³ as follows -

11.5 milliamperes [mA] = 11.5 x 10⁻³ amperes[A]

Therefore, the equivalent measurement of 11.5 milliamperes is 11.5 x 10⁻³ amperes.

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Answer:

19.4Nm..............

Answer:

biology. hope this helps

For Galileo, a uniformly accelerated motion is one for which each time the same time passes, the same change in velocity occurs.

So, the correct answer is D.

This statement is represented in Galileo's law of acceleration, also known as Newton's Law of Inertia. This law states that an object will remain at rest or in uniform rectilinear motion (MRU) unless a net force acts on it. The law also states that the net force applied to an object is equal to the object's mass times its acceleration.

Constant acceleration occurs in uniformly accelerated motion, which means that an object's velocity changes uniformly over time. In other words, the magnitude of the acceleration is constant.

For example, the free fall of an object near the Earth's surface is an example of uniformly accelerated motion, since the acceleration due to gravity is constant.

Hence, the answer of the question is D.

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Answer:

See below

Explanation:

momentum = m * v

so

momentum / v = m   =   32 000 kg m/s / 20 m/s = 1600 kg

The potential difference between the plates of the parallel-plate capacitor needs to change at a rate of 0.696 V/s to produce a displacement current of 1.6 A.

The required rate of change is calculated by using the formula for displacement current in a parallel-plate capacitor :

where I_d is the displacement current, ε₀ is the vacuum permittivity (8.85 x 10^(-12) F/m), A is the area of the plates, and dV/dt is the rate of change of the potential difference.

Rearranging the formula, we can solve for dV/dt:

Given that the capacitance C = ε₀ * A / d, where d is the separation between the plates, we rewrite the formula as:

Substituting the given values, with C = 2.3 x 10^(-6) F and I_d = 1.6 A, we have:

Calculating the result gives:

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Answer:

C, 1800kg/s

Explanation:

You multiply the mass (300) by the change in the two velocities (6-0=0). Then you’ll get 1800.. sorry if I’m wrong

Answer:

C equal numbers of electrons and protons

Explanation:

The words in the text that most clearly show a superior attitude are "I have already taken note" in the excerpt from "Letter to George III, 1793" by Emperor Qian Long.

So, the answer is A

The letter "Letter to George III, 1793" was written by Emperor Qianlong of China to King George III of England. In this letter, Emperor Qianlong is responding to a memorial sent to him by King George III of England through the British embassy in China.

Emperor Qianlong thanks King George III for his interest in China, but he also emphasizes the superiority of China's civilization to England's. He says that England has sent an embassy to China because it desires the blessings of China's civilization and converting influence.

He also notes the respectful spirit of submission of King George III in sending the embassy to China.

Hence, the answer of the question is A.

Your question is incomplete but most probably your full question was:

Read this excerpt from "Letter to George III, 1793" by Emperor Qian Long:

You, O King, from afar have yearned after the blessings of our civilisation, and in your eagerness to come into touch with our converting influence have sent an Embassy across the sea bearing a memorial. I have already taken note of your respectful spirit of submission, have treated your mission with extreme favour . . .

Which words in the text most clearly show a superior attitude?

A.I have already taken note

B.treated your mission with extreme favour

C.from afar have yearned

D.your respectful spirit of submission

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Centripetal force is directly proportional to the radius (Fc ∝ r). As the radius increases, the centripetal force also increases. Centripetal force is inversely proportional to the radius (Fc ∝ 1/r). As the radius increases, the centripetal force decreases in scenario b.

(a) Constant frequency:
When an object moves in a circular path with a constant frequency (i.e., constant number of revolutions per unit time), centripetal force (Fc) is given by the formula:

Fc = 4π²mr/T²

Here, m is the mass of the object, r is the radius of the circular path, and T is the period of one revolution. Since frequency (f) is the reciprocal of the period (f = 1/T), we can rewrite the formula as:

Fc = 4π²mrf²

In this case, centripetal force is directly proportional to the radius (Fc ∝ r). As the radius increases, the centripetal force also increases.

(b) Constant speed:
When an object moves in a circular path with a constant speed (v), centripetal force is given by the formula:

Fc = mv²/r

In this scenario, centripetal force is inversely proportional to the radius (Fc ∝ 1/r). As the radius increases, the centripetal force decreases.

Experimental results have indeed substantiated these relationships between centripetal force and the radius of the circular path. Researchers have conducted experiments using setups like rotating platforms and swinging masses to validate these theoretical predictions, and their findings consistently support the formulas provided.

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Answer:

a lever that is what is used

Answer:

The momentum of the van before the collision can be calculated as:

momentum = mass x velocity

momentum = 1200 kg x 8 m/s

momentum = 9600 kg⋅m/s

Therefore, the momentum of the van before the collision was 9600 kg⋅m/s.

After the collision, the van came to a stop, which means its final velocity was 0 m/s. The momentum of the van after the collision is:

momentum = mass x velocity

momentum = 1200 kg x 0 m/s

momentum = 0 kg⋅m/s

Therefore, the momentum of the van after the collision was 0 kg⋅m/s.

The change in momentum of the van can be calculated as:

change in momentum = final momentum - initial momentum

change in momentum = 0 kg⋅m/s - 9600 kg⋅m/s

change in momentum = -9600 kg⋅m/s

Therefore, the change in momentum of the van was -9600 kg⋅m/s.

The force that acted on each driver can be calculated using the formula:

force = change in momentum/time

force = (-9600 kg⋅m/s) / (0.3 s)

force = -32000 N

The negative sign indicates that the force acted in the opposite direction to the motion of the van.

Therefore, the force that acted on each driver was 32000 N.

Explanation:

Answer:

D

Explanation:

mixture contain only one kind of atom

Mixtures differ from substances as mixtures contain only one kind of atom. Hence, option D is correct.

A compound in chemistry is a material comprised of two or more separate chemical elements mixed together in a certain proportion. Chemical connections that are challenging to break are created when the elements interact with one another. These bonds develop as a result of atoms sharing or trading electrons.

A mixture is a substance comprised of two or more additional chemical compounds or substances that do not chemically combine. The only way for two or more substances to maintain their own identities when combined in the form of solutions, suspensions, or colloids is through physical mixing. To separate them, utilize physical tools. Any type of chemical chemistry is not used to manufacture the various components of any composition. The distinctive properties of each component remain unaffected as a result.

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Explanation:

Use Pythagorean theorem:

r² = x² + y²

r² = (-6.46 m)² + (-3.78 m)²

r = 7.48 m

Glucose is more stable than fructose, as indicated by the positive standard free energy change (+0.35 kJ/mol) for the conversion of glucose to fructose.

Yes, enzymatic catalysis is expected for this reaction, as the high activation energy (66 kJ/mol) suggests that the reaction is kinetically unfavorable under standard biochemical conditions.

The equilibrium constant for the conversion of glucose to fructose at 25°C can be determined using the equation ΔG = -RTln(K), where ΔG is the standard free energy change, R is the gas constant, T is the temperature in Kelvin, and K is the equilibrium constant. By rearranging the equation, K = e^(-ΔG/RT), and substituting the given values, the equilibrium constant can be calculated.

Glucose is more stable than fructose based on the positive standard free energy change (+0.35 kJ/mol) for the conversion of glucose to fructose. A positive value for ΔG indicates that the reaction proceeds in the non-spontaneous direction, with fructose being less stable than glucose.

Enzymatic catalysis is expected for this reaction due to the high activation energy (66 kJ/mol) under standard biochemical conditions. Activation energy represents the energy barrier that must be overcome for a reaction to occur. In this case, the high activation energy suggests that the conversion of glucose to fructose is not favorable without the assistance of enzymes. Enzymes lower the activation energy by providing an alternative pathway for the reaction, allowing it to proceed more readily.

To calculate the equilibrium constant for the conversion of glucose to fructose at 25°C, we can use the equation ΔG = -RTln(K), where ΔG is the standard free energy change, R is the gas constant (8.314 J/(mol·K)), T is the temperature in Kelvin (25°C = 298 K), and K is the equilibrium constant. By rearranging the equation, we have K = e^(-ΔG/RT). Substituting the given value of ΔG (+0.35 kJ/mol) and the appropriate units for R and T, we can calculate the equilibrium constant.

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Answer:

The vapour pressure of water is great tah 50 than it is 10.

The youngest is Calliope.

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