JACQUES D.

04/06/23

stats question fuel efficiency

Suppose that fuel efficiency for a particular model car under specified conditions is normally distributed with a mean value of 29.0 mpg and a standard deviation of 1.25 mpg. Let y = the fuel... more

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Chemistry

04/06/23

Predict whether a precipitate will form upon mixing 75.0 mL of NaOH solution with pOH of 2.58 with 125.0 mL of a 0.018 M MgCl2 solution.

I know how to tell whether a precipitate will form, and there is one for this specific reaction. Yet, I am having trouble calculating the Q and Ksp value in order to compare them to each other. I... more

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Physics

04/06/23

converging angles

A 2.8 cm-tall object stands in front of a converging lens. It is desired that a virtual image 2.1 times larger than the object be formed by the lens. How far from the lens (in cm) must the object... more

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Chemistry

04/05/23

What advantages does an inverted burette have over an inverted graduated cylinder, an inverted test tube, and a balloon?

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Math Science Chemistry

03/29/23

Given the following enthalpies of formation, calculate the standard enthalpy change for the incomplete combustion of ethance (C2H6)

Reactants/Products ▲H fC2H6 -84.68 kJ/molO2 ... more

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Chemistry

03/27/23

Solution calculation

12.5g potassium sulfate in 50.0L h2O describe the components, and give mass percent, mole percent, molarity, molality

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Chemistry

03/25/23

If a reaction is first order with a rate constant of 0.0450 s⁻¹, how much time is required for 65% of the initial quantity of reactant to be consumed?

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Answers •1

Calculus

03/25/23

Use Newton's Method to approximate the zero(s) of the function.

Use Newton's Method to approximate the zero(s) of the function. Continue the iterations until two successive approximations differ by less than 0.001. Then find the zero(s) to three decimal places... more

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Physics

03/23/23

Physics Force Problem

A 48.5 kg car is towed up a hill at 15.3◦ to the horizontal. The tow line exerts a force of 138 N on the car. The car starts from rest at the bottom of the hill, no friction. Use 9.81 for G. How... more

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Physics

03/23/23

Can Someone Help me with this Physics Question

A bug lands on top of the frictionless, spherical head of a bald man. It begins to slide down his head.Find the vertical distance in terms of the radius r of the head measured from the top of the... more

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Chemistry

03/16/23

r the following combustion reaction CH₃CWhen a 7.52-g sample of butyric acid (molar mass = 88.10 g/mol) is burned, how much energy (in kJ) is released as heat?

For the following combustion reaction CH₃CH₂CH₂COOH(l) + 5O₂(g) → 4CO₂(g) + 4H₂O(g) ∆H = -2.18 × 10³ kJ When a 7.52-g sample of butyric acid (molar mass = 88.10 g/mol) is burned, how much energy... more

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Chemistry

03/13/23

Please help me with this question

Calculate the final temperature of the system: A 50.0 gram sample of water initially at 100 °C and a 100 gram sample initially at 22.4 °C are mixed. The specific heat of water is 4.184 J/gC).... more

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Physics

03/12/23

A trio of 4Ω resistors are all connected in series to a 24 V battery, what is the total resistance of the circuit?

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Answers •1

Math Algebra 1 Algebra 2

03/10/23

Find the area and perimeter of the figure determined by the points. (−7, 2), (−3, 1), (−2, 5)

Find the area and perimeter of the figure determined by the points. (−7, 2), (−3, 1), (−2, 5).

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Trigonometry

03/08/23

A right triangle has side lengths 9, 40, and 41 as shown below. Use these lengths to find sinM, tanM, and cosM

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Physics

03/08/23

Tension in strings

Find the tension in each of the three cables supporting the traffic light if it weighs 300 N (hint: both T1Y and T2Y, the "y" components of T1 and T1, need to equal the weight of the traffic light;... more

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Physics

03/08/23

Non-uniform Circular motion

This object is rotating at non-uniform circular motion. Its centripetal acceleration is ac = 20 m/s2 and its tangential acceleration is at = 13 m/s2. What is the total acceleration?What is the... more

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Statistics

03/08/23

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SAT score of first year students at your college. If you would like to... more

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Physics

03/04/23

Vectors in physics

Determine the resultant of two dispacement A and B where:A=(5i-2k)mB=(-3i+4j+6k)m

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Chemistry

03/04/23

By titration, it is found that 35.1 mL of 0.148 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

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Physics

03/03/23

According to the principle of superposition, displacement caused by combining two waves is equal to the

Larger wave Sum of the contributing waves Average of the contributing waves Equilibrium position

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Chemistry

03/02/23

Can Crush by Air Pressure Experiment

If you put a can with water at its base over a hot plate and allow the water to heat. Once Steam is visible from the top of the can, and quickly flip the can upside down into a bowl of water with... more

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Algebra 2

03/02/23

How to write polynomial equations based on the roots.

There are three questions.The first has the root 6-√7The second has the roots -2, 1+√7The third has the roots -6, 0, 3, -√5

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Answers •2

Chemistry

03/02/23

What is the pH of a bleach solution that has a [OH−]=1.0×10−3 M?

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Answers •1

Chemistry

03/02/23

calculate the new pressure if a 2.45L of a gas at a pressure of 1.01 atm is contracted to a volume of 2.29L

Best to use Boyle's gas law

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Answers •1

stats question fuel efficiency

Predict whether a precipitate will form upon mixing 75.0 mL of NaOH solution with pOH of 2.58 with 125.0 mL of a 0.018 M MgCl2 solution.

converging angles

What advantages does an inverted burette have over an inverted graduated cylinder, an inverted test tube, and a balloon?

Given the following enthalpies of formation, calculate the standard enthalpy change for the incomplete combustion of ethance (C2H6)

Solution calculation

If a reaction is first order with a rate constant of 0.0450 s⁻¹, how much time is required for 65% of the initial quantity of reactant to be consumed?

Use Newton's Method to approximate the zero(s) of the function.

Physics Force Problem

Can Someone Help me with this Physics Question

r the following combustion reaction CH₃CWhen a 7.52-g sample of butyric acid (molar mass = 88.10 g/mol) is burned, how much energy (in kJ) is released as heat?

Please help me with this question

A trio of 4Ω resistors are all connected in series to a 24 V battery, what is the total resistance of the circuit?

Find the area and perimeter of the figure determined by the points. (−7, 2), (−3, 1), (−2, 5)

A right triangle has side lengths 9, 40, and 41 as shown below. Use these lengths to find sinM, tanM, and cosM

Tension in strings

Non-uniform Circular motion

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

Vectors in physics

By titration, it is found that 35.1 mL of 0.148 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

According to the principle of superposition, displacement caused by combining two waves is equal to the

Can Crush by Air Pressure Experiment

How to write polynomial equations based on the roots.

What is the pH of a bleach solution that has a [OH−]=1.0×10−3 M?

calculate the new pressure if a 2.45L of a gas at a pressure of 1.01 atm is contracted to a volume of 2.29L

Still looking for help? Get the right answer, fast.

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JACQUES D.

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Emmersion

stats question fuel efficiency

Predict whether a precipitate will form upon mixing 75.0 mL of NaOH solution with pOH of 2.58 with 125.0 mL of a 0.018 M MgCl2 solution.

converging angles

What advantages does an inverted burette have over an inverted graduated cylinder, an inverted test tube, and a balloon?

Given the following enthalpies of formation, calculate the standard enthalpy change for the incomplete combustion of ethance (C2H6)

Solution calculation

If a reaction is first order with a rate constant of 0.0450 s⁻¹, how much time is required for 65% of the initial quantity of reactant to be consumed?

Use Newton's Method to approximate the zero(s) of the function.

Physics Force Problem

Can Someone Help me with this Physics Question

r the following combustion reaction CH₃CWhen a 7.52-g sample of butyric acid (molar mass = 88.10 g/mol) is burned, how much energy (in kJ) is released as heat?

Please help me with this question

A trio of 4Ω resistors are all connected in series to a 24 V battery, what is the total resistance of the circuit?

Find the area and perimeter of the figure determined by the points. (−7, 2)​, (−3, 1)​, (−2, 5)

A right triangle has side lengths 9, 40, and 41 as shown below. Use these lengths to find sinM, tanM, and cosM

Tension in strings

Non-uniform Circular motion

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

Vectors in physics

By titration, it is found that 35.1 mL of 0.148 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

According to the principle of superposition, displacement caused by combining two waves is equal to the

Can Crush by Air Pressure Experiment

How to write polynomial equations based on the roots.

What is the pH of a bleach solution that has a [OH−]=1.0×10−3 M?

calculate the new pressure if a 2.45L of a gas at a pressure of 1.01 atm is contracted to a volume of 2.29L

Still looking for help? Get the right answer, fast.

OR

JACQUES D.

Find the area and perimeter of the figure determined by the points. (−7, 2), (−3, 1), (−2, 5)