What is the mass of tissue that receives 15 Joules and absorbs 5 Gy?
Q: An EPA standard for microparticulates in air is limited to a maximum of 50.0 ?μg/m3. Calculate the…
A: Micro particulates in air is limited to a maximum of ρ = 50.0 μg/m3 Volume of the room V = 10.0 ft…
Q: A bottle of liquid medication contains 300mL and cost $15.00. If the usual dose is 1.5…
A: Given A bottle of liquid medicine contains 300mL and costs $15.00. Dosage Amount =1.5 tablespoon 1…
Q: The crew of the Apollo 9 collected moon rocks to bring back to earth. Three of the rocks were massed…
A: Given: Mass of rock-1, m1 = 9.60 g Mass of rock-2, m2 = 0.00345 kg Mass of rock-3, m3 = 195 mg
Q: A scuba diver inhales 110 mL of compressed air at a pressure of 3.7 atm. What is the pressure of air…
A: In the given question given that initial value of pressure and volume and also given the value of…
Q: Electrical energy is usually measured in kilowatts*hours, kWh. A watt is 1 joule per second. A…
A: UNITS AND DIMENSIONS
Q: If you are told the half life of a material is 3,500 years, then how much would be remaining from a…
A: Given data: Half life (t1/2)= 3,500 years Initial quantity of the substance (N0) = 10 g Time elapsed…
Q: Cobalt-60 is a synthetic radioactive isotope of cobalt with a half-life of 5.3 years. What was the…
A: Given data The half-life of the cobalt is t1/2 = 5.3 years The quantity of the radioactive isotope…
Q: The half-life of Carbon-14 is 7 years. How much of an initial 168 g sample will remain after 30…
A:
Q: sample of iodine-126 with an original mass of 15mg loses 13.125mg of the original mass of the…
A: sample of iodine-126 with an original mass of 15mg loses 13.125mg of the original mass of the…
Q: If a microwave oven emits 1,100 J of energy every second, how much energy will be emitted after 8.9…
A: Power emitted by a source is defined as the energy radiated per unit time, given as P=Et In the…
Q: How many alpha particles are emitted per second from 1 microgram of radium?
A: we know that, 1C= Activity of 1 g of Radium=3.7×1010 days
Q: A steel tape measure is used to measure a 10 m distance at a temperature of 10oC. If it was…
A: The change in temperature is ΔT=22-10°C
Q: If your car averages 22.07 miles per gallon, how many miles would you expect to drive on 13.243…
A: Car average of X miles per gallon means that in 1 gallon gas the car will go to X miles. So the…
Q: 2 (a) How many protons are in 2.00 kg of pure iron? Answer using scientific notation nt)
A: To find the number of protons in a given mass of substance, we first find the number of atoms in the…
Q: An ideal gas is in a room held at a constant temperature and the pressure set at 4 atmospheres…
A: Given data: An ideal gas held at constant temperature Initial pressure (P1) = 4 atm Initial volume…
Q: The area of the 48 contagious states is 3.02 x 106mi2. Assume that these states are completely flat…
A: Area of the states = 3.02 x 106 mi 2 = 7.818 x 1012 m2 Height of rainfall = 2 inch = 0.0508 m
Q: While researching fluid dynamics, you come across a reference to the dimensionless number called the…
A: Write the expression for capillary number.
Q: If 2.25 gg of orange mercury oxide decomposes to 2.09 gg of liquid mercury and oxygen gas, what is…
A: Given information: It is mentioned that 2.25 g of mercury oxide decomposes to 2.09 g of liquid…
Q: A radioactive isotope has a half-life of about 17 years, which means that if it starts with 1 kg…
A:
Q: How many copper atoms are in a pure copper statue with a mass of 130 kgkg ? Express your answer…
A: Copper has a molar mass equal to 63.546 g/mol. This means that one mole of copper contains…
Q: A rocket travels at a constant speed of 4000 m/s. How long would it have to travel from the surface…
A: In the given question, the speed of rocket (v) = 4000m/s the final weight of the rocket becomes 80%…
Q: How many joules of energy is transferred by 3kw?
A: Given: The power is P=3 kW. The expression for energy (E) in joules is: E=P
Q: The count in a bacteria culture was 200 after 15 minutes and 1600 after 30 minutes. Assuming the…
A:
Q: d) How would your answer change for parts b and c if the survivors were stuck in a freshwater lake?
A: The only difference that happens in the calculations when the survivors are stuck in a freshwater…
Q: the mass m, is given the equation m=i[0.69]t. i is the intitial dose and t is the number of hours…
A: Given, m=i(0.69)t (t comes in the exponent) where i= initial mass t=…
Q: How many 6.60 × 10−6 m long red blood cells stack up to be the thickness of a single sheet of 1.0 ×…
A: Thickness of 1 Red Blood Cell(RBC) = 6.6 × 10-6 meter. Thickness of paper = 1 × 10-4 meter. Number…
Q: (18 pts) Two balls are tied together via string and then swung in a vertical circular path using a…
A: Given: m1 = 0.4 kg m2 = 0.2 kg l = 0.36 m v = 3 m/s
Q: If a 500.0 g sample of technetium-99 decays to 62.5 g of technetium-99 remaining in 639,000 years,…
A: Initial sample () = 500 gSample after 639000 years () = 62.5 g
Q: If you dispense 0.3 grams of aspirin, how many milligrams are you giving?
A: CONCEPT: Method of conversion of unit is used to find required value. 1 g=1000 mg where g is gram…
Q: The total annual energy consumption in the US in 2020 was 92.9 quadrillion BTUs. How much mass (in…
A: The given total annual energy consumption in the US in 2020 was E = 92.9 quadrillion BTU since, 1…
Q: A person consumes about 2300 Cal a day. 1 Cal = 4186 J and 1 kWh= 860 Cal.If a power company charges…
A: person consumes = 2300 cal in one day 1 kwh = 860 cal cost of 1 kwh energy = 12 ¢ means cost of 860…
Q: If you know that the natural element samarium (its mass number 146) contains the radioactive isotope…
A:
Q: A fire grew to 1500kW in 125 seconds, what is the growth rate
A: Fire growth = 1500 kw time =125 s
Q: An adult dose of cisatracurium, a skeletal muscle relaxant, is 3.4 mg. If this drug is administered…
A: Given: Adult dose of cisatracurium: 3.4mg Body surface area of the child : 0.75 m2. The relation…
Q: If 60% of U.S. petroleum use goes for transportation, and 1% of this goes for buses, how much oil…
A: The amount of petroleum used in US is 60%, and x2 be the amount of petroleum used in buses 1%.The…
Q: A balloon has a volume of 0.3 m3 at room temperature (22 C) and is then placed in a freezer. What…
A: Answer: Given Values,
Q: If you double the distance between two planets, what happens to the force of gravity between them?…
A: As the gravity force is inversely proportional to the square of distance, if the distance is…
Q: Potassium is a crucial element for the healthy operation of the human body. Potassium occurs…
A: 1) Amount of Potassium-40
Q: What is the volume of an aluminum statue with a mass of 500 grams? (Density of aluminum = 2.7 g/cc)
A:
Q: An adult inhales about 6.0××10−4−4 m3m3 of fresh air during a breath. Only 20%% of fresh air is…
A: Let P be the pressure in the lungs, V be the volume of the fresh air, n be the number of moles of…
Q: Suppose you are designing a proton decay experiment and you can detect 50 percent of the proton…
A: In a proton decay experiment 50 percent of proton decay in a tank of water is detect.
Q: The half life of 85Kr is 11 years. What is the mass of one millicurie of 85Kr? O 9.2 microgram O 30…
A: Given Half life = 11year T½= 11*365*24*60*60 sec =3.48*10⁸ sec I millicurie = 3.7*10⁷ /s Lambda=…
Q: One kilogram of water at 0 oC is heated to 100 oC. Compute its change in entropy
A:
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