What is the electrostatic potential energy when charges 4 microcoulombs and 2 microcoulombs are separated by a distance of 3 cm? а. 2.4 kJ b. 2.4 x 1010 J С. 2.4 J d. 2.67 kJ

Q: The speed of light is about 3.00 x 108 m/s. How far can light travel in two days (72.0 hours)? Your…

A: We know that., 1 hour = 60 minute and, 1 minute = 60 second Therefore 1 hour = 60×60 = 3600 second…

Q: 2. You are weighing a solid on our analytical balances and are weighing by difference. Your initial…

A: In the substraction of two uncertain numbers the uncertainty of the difference is the sum of the…

Q: 4| Automobile batteries contain sulfuric acid, H,SO4, commonly called "battery acid". This is a…

A: Given : Volume of battery acid = 1.00 gallon  Density of solution = 1.28 g/mL Mass percent of H2SO4…

Q: A brick of a certain metal has area on top of 2.15 cm x 5.24 cm. It has mass 1,036 g. How high is…

A: Given that:  Metal area = 2.15cm×5.24cm  Mass = 1.036g  Density = 2.7g/cm3 Density formula : mass ÷…

Q: A chemistry student needs 40.0 g of butanoic acid for an experiment. She has available 1.0 kg of a…

A: Mass of butanoic acid needed = 40.0 g6.37% w/w butanoic acid solutionThis means that 63.7 g of…

Q: Set up the problem and calculate the mass of 17.1 mL of aluminum . See the table below for the…

A: Density can be calculated using the formula:  Density = Mass ÷ Volume  Mass = Density x Volume

Q: Employ the method of dimensional analysis to convert 1 cubic yard to tonnes of water. Assume a…

A: Using dimensional analysis method the given 1 cubic yard is converted into to tonnes of water as…

Q: If the density of a piece of oak wood is 0.850 g/cm^3, will the item float or sink in pure water?

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Q: If it takes 4.82 minutes to fill a 50.0 gal gas tank, calculate the gasoline flow rate in mL/s.

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Q: An electric current of 284.0 mA transports 680. µC of charge. Calculate the time this took. Be sure…

A: The current flow in unit time is known as current. The calculation of the current can be done by…

Q: A certain person had a brain that weighed 1.35 kg and contained 4.11 × 10¹0 cells. Part: 0/2 Part 1…

A:

Q: The density of concentrated sulfuric acid is 1830k(g)/(m^(3)). You obtained 500.0cg of concentrated…

A: density of concentrated sulfuric acid is 1830k(g)/(m^(3))mass of concentrated sulfuric acid is…

Q: A brick of metal has these dimensions: 8.47 in x 3.34 in x 4.14 in. It has mass 8.3 kg. What is the…

A: Given: Dimensions of brick = 8.47 in × 3.34 in × 4.14 in And mass of brick = 8.3 Kg = 8300 g…

Q: Need help with this textbook question thats been giving me hard time. Please show steps. calculate…

A: Given question, ln3.861.00=362.8×1038.314298.1-1-x-1 To convert ln into log, we have to multiply it…

Q: Raw milk is stored at a dairy farm in a refrigerated cylindrical vat 6.50 feet wide and 12.5 feet…

A: Assume the cylinder height is 12.5 and 6.50 feet wide The level of the milk is 2.75 feet from the…

Q: A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the…

A: Volume of the unknown liquid, V = 0.874 L                                                       =…

Q: A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the…

A: Answer :-  a) 0.705 g.mL-1  b) Yes  c) diethylamine…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Here, we have to convert 0.070 Pa.cm3 into kPa.m3.

Q: The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is…

A: 1 acre-foot = 43,560 ft³ 1 US liquid gallon = 231 cubic inches 1 US liquid gallon = 3.785 liters 1…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: A sheet of aluminum (A1)foil has a total area of 1.000 ft² and a mass of 3.656 g. What is the…

A:

Q: Solve the given problem related to population growth. A city had a population of 22,400 in 2007 and…

A:

Q: Rules of Significant Figures and Dimensional Analysis For centuries, the people of Paradis Island…

A: Given that, the data is Physical quantity Unit and symbol Conversion to SI unit Length Trost…

Q: Part D Complete the fourth row. Express your answer using three significant figures. Enter your…

A:

Q: Finding the side length of a cube from its volume in liters A technical machinist is asked to build…

A:

Q: I want to know if there is a chart to go by to know how to convert metric systems and SI units for…

A:

Q: A 76.0076.00 pound flask of mercury costs $150.00.$150.00. The density of mercury is 13.534…

A: Given,weight of mercury=76pound76pound mercury costs=$150Density=13.534g/cm3

Q: Calculate the mass in kilograms of a 1.70 kg object when its velocity, relative to us, is each of…

A: Given: Mass of object=1.70 kg Velocity of light=3×108 m/s To calculate: Mass at different velocity

Q: 3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the…

A: A numerical problem based on uncertainty measurements, which is to be accomplished.

Q: A brick of metal has these dimensions: 5.23 in x 3.29 in x 4.39 in, It has mass 12.0 kg. What is the…

A: The density of any object is given by the formula - density = mass / volume and, volume = length x…

Q: Using the data below (included for context), what is the equation for the trendline for the data…

A: The velocity of a reaction is the speed at which reactants are converted to products or the speed at…

Q: The "normal" lead content in human blood is about 0.40 part per million (that is, 0.40 g of lead per…

A:

Q: 3) An eager new legislator is enamored with how everything is expressed in powers of 10 in t metric…

A: Mole is a quantity of substance that contains 6.022 x 1023 units of that substance. It is the S.I.…

Q: A student is examining a bacterium under the microscope. The E coll bacterial cell has a mass of…

A:

Q: 7. To determine the flowing velocity of a stream, a student dropped a ball into the water. He…

A: The distance moved the ball in 5 min = 15 m  The cross-sectional area of the flow channel = 10,000…

Q: 365 days 1 year; 24 hours = 1 day ; 60 sec = 1 min :60 min = 1 hr How many days equal 1.2 r 10°…

A: Here we simply have to divide total seconds by 86400

Q: A brick of metal has these dimensions: 4.13 in x 5.57 inx 4.01 in. It has mass 11.1 kg. What the…

A: Given that:  Mass of metal = 11.1kg = 11.1kg×1g/1000kg = 11100g  Dimension of metal =…

Q: The average time it takes for a molecule to diffuse a distance of x cm is given by t = 2D Assume…

A: The average time to take diffuse is = x22D The diffusion coefficient for glucose is = 5.70×10-7 cm2s…

Q: 2. The engine in a boat has a displacement of 350 inches. What is the displacement of this engine in…

A: Conversion factor is the ratio that provides the relation between distinct units of the same…

Q: Shawn,Melissa, Pierre, and Kathy are each trying to make a solution that requires 40 mL of stock to…

A: To determine the cumulative error for each person, we need to calculate the error introduced by each…

Q: A brick of metal has these dimensions: 4.13 in x 5.57 in x 4.01 in. It has mass 11.1 kg. What is the…

A: Metal Brick dimension = 4.13 inx 5.57 in x 4.01 in Mass = 11.1 kg

Q: A chemist must dilute 22.0 mL of 45.9 µM aqueous magnesium fluoride (MgF₂) solution until the…

A:

Q: How do I solve this problem using dimensional analysis? Copper can be drawn into thin wires. How…

A: Copper is malleable and ductile metal which can easily change to wires and sheets. This is because…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.