TV waves travel at the speed of light (“c”), roughly 3.00 x 108 m/s. How long does it take for a Tv message to reach the edge of our solar system, roughly 9.0×109 miles from Earth? Use proper significant figures. One mile= 1.609 km.

Q: length, I = 2.20 in width, w = 2.91 in height, h = 10.4 in +1 in Calculate the height, h, of the…

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Q: Which quantity would have unlimited significant figures? 12 square feet 12 miles/hour 12 kg 12 eggs…

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Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

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Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

A: The speed of the light refers to the distance travelled by the light in a given unit of time. The…

Q: The density of mercury is 13.6 g/cm^3. What is the mass of 6.50 cm^3 of mercury? (^ means that the…

A: Given  Density of mercury = 13.6 gram/cm3  Volume of mercury = 6.50 cm3 Mass = ?

Q: 5. The beds in your dorm room have extra-long mattresses. These mattresses are 80 inches (2…

A: We have to calculate the area of mattress. Also we have to calculate the diameter in inches.

Q: A brick of metal has these dimensions:  7.07 in  x 9.20 in x 7.15 in.  It has mass 8.1 kg.  What is…

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Q: the distance between the oxygen atom and a hydrogen atom in a water molecule is 95.7 pm what is the…

A: conversion from one unit to another unit is an important aspect of measurement

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: Here, height is given in two parts as above. Then the addition of two-part values as below…

Q: A chemist adds 4 drops of hydrochloric acid to a beaker. What kind of number is "4" in this example?…

A: Here the chemist is adding 4 drops of hydrochloric acid so it not a measured number and the…

Q: Bob and Jill are measuring the height of Mr. Chenet (Mr Chenet is 1.8593 meters tall). Bob gets a…

A: Accuracy It is defined as the closeness of measurement to specific value means we will have one…

Q: A piece of copper has a volume 300 L. What is the mass of the sample, in units of grams? Fill in…

A: the Red box is filled as shown below:

Q: a piece of metal weighing 20.55g was immersed in water in a graduated cylinder, the initial volume…

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Q: What is the value in Japanese Yen of a solid sphere of silver with a diameter of 3.00 inches? Silver…

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Q: The mass of an object was found to be 28.90 g. When this object was dropped in a graduated cylinder…

A: Given, mass of object =28.90 gramthis object was dropped in a graduated cylinder partially filled…

Q: The unit of weight used for precious stones is the carat (1 carat=200 mg ,exactly).If a particular…

A: Conversion of carat into mg: 1 carat=200 mg1.25 carat=1.25×200=250 mg Conversion of mg into g: 1…

Q: A bar of gold with a mass of 2060.5 g has the following dimensions: 7.30 cm by 3.25 cm by 4.50 cm.…

A: 1.  Mass of bar of gold = M = 2060.5 g  Dimensions = 7.30 cm by 3.25 cm by 4.50 cm Volume = 7.30 cm…

Q: 4) For the displacement of the metal, ethanol (d 0.79 g/mL) was mistakenly used in the liquid in the…

A: Density is defined as the mass of the object upon the volume of occupied by the object   density d=…

Q: A.Measurement of the density of water.Weigh a small beaker (degree of precision?). Place about 25 mL…

A: Here we need to calculate the density of the water. We know that, density is defined as the mass per…

Q: A gallon (3.78 L) of latex paint can cover 385 ft 2 of the surface of a wall. What is the average…

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Q: Ultrapure silicon is used to make solid-state devices, such as computer chips.  If the volume of a…

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Q: 10. Light can travel from the earth to Mars in 185.2seconds. The speed of light is 6.71x10^8mi/hr.…

A: Answer:- This question is answered by using the simple concept of dimentional analysis which…

Q: If the density of an unknown object was found to be 1.44 x 10−4 pounds (lbs) per cubic inch, what is…

A: Given,  If the density of an unknown object was found to be 1.44 x 10−4 pounds (lbs) per cubic inch,…

Q: A hollow spherical iron ball has a diameter of 15.3 cm and has a mass of 13.5 kilograms. Assuming…

A: The formula to find the volume of iron of a hollow sphere, V is: V = 43πR3 -  43πr3 (or) V =…

Q: Describe the difference between accuracy and precision. How do we determine accuracy and precision?

A: Accuracy is the measure of closer agreement between true value or accepted value and  specific…

Q: Experiment 5-Data Anolysis for Accuracy and Precision - A second group of students performed the…

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Q: The output of a plant is 4335 pounds of ball bearings per work-week (a work week = five days). If…

A: Given: Mass of each ball bearing = 0.0113 g Total mass of ball bearings formed in 5 days = 4335…

Q: An empty beaker weighs 42.77 g. When completely filled with water, the beaker and its contents have…

A: Since you have posted  multiple questions in a single session. we are entitiled to answer only first…

Q: Is a meter about an inch, a foot, a yard, or a mile?

A: Answer 1: 1 metre = 39.37 inch 1 foot = 12 inch ⇒ 1 metre = 39.37 inch1 × 1 foot12 inch⇒ 1 metre =…

Q: The length of a track race known as "The Olympic Mile" is actually 1500.0 m. What percentage of a…

A: It is given that the length of a track race having a name of Olympic mile is 1500 m, and the…

Q: Calculate the density of the following materials for which the mass and volume of samples have been…

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Q: The density of a material can be used to calculate the volume of an object if its mass is known.…

A: Given Mass of quarter = 6.25 Density = 10.5 g/ml  Unknown Volume of quarter??

Q: Given that there are 220.0 yards in 1.000 furlong, 2.54 cm in 1.00 inches, and two weeks in a…

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Q: Please answer the questions. A 6.2-ft person weighs 175 lbs. Express this person's height in meters…

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Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

A: Given, weight of the copper wire per km of length is ------ 44.5g The mass of wire that is used to…

Q: The prescribed dose of an injected drug is 1.5 mL. If the syringe is graduated in cubic centimeters…

A: Given: The prescribed dose of the drug = 1.5 mL The dose in cubic centimeters or mark of drawing…

Q: Lithium is a soft, gray solid that has the lowest density of any metal. It is an essential component…

A: The given values for rectangular slab of lithium are: m (mass)=1.49×103 mg=1.49×103×10-3 g=1.49 gl…

Q: The single proton that forms the nucleus of the hydrogen atom has a radius of approximately…

A: Given : Radius of nucleus = 1.0 x 10-13 cm. Radius of hydrogen atom = 52.9 pm. Convert the radius of…

Q: An optician measures the diameter of her patient's pupil. The diameter is 0.0016m . What is the…

A: Change 0.0016 m to millimeter ?

Q: The speed of light is 2.998x10^8 m/s. How long does it take light to travel 40.cm? Set the math up.…

A: Given that,    Speed of light, s = 2.998×108 m/s   Distance travel by light, l = 40.0 cm  Time taken…

Q: A lightyear is a unit of length equal to the distance that light travels in 1 year. What is 1…

A: The multiplication of speed and time is known as distance.

Q: Jupiter’s mass is estimated to be 1.90 x 1027 kg, and it has a diameter of 142,984 km. Assuming that…

A: Mass of Jupiter Radius of Jupiter =                           Volume of Jupiter considering it a…

Q: How far does light travel in 4.0μs?

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Q: a 400 troy ounce gold bar weighs 27.428 pounds, or 12.4441 kg. it measures 7 inches by 3 5/8 inches…

A: Mass of gold bar = 27.428 pounds or 12.441 kg or 12441 g

Q: An empty beaker weighs 32.85 g. When completely filled with water, the beaker and its contents have…

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Q: You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2…

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Q: 1 in = 2.54 cm, exactly 60 min = 1 hr, exactly 12 in = 1 ft, exactly 60 s = 1 min, exactly 4 qt = 1…

A: Recommended dose of a certain antibiotic = 4.5 mg/kg  Dose for a 275 Ib person = ?

Q: At a particular instant in time, the Earth is judged to be92,955,000 miles from the Sun. What is the…

A: Significant figures can be defined as the total number of digits present in the number including…

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.