Browse Quiz Answers resources and answers on Quizzma.
Select all the true statements regarding chemical equilibrium: The concentrations of reactants and products remain constant. The concentrations of reactants and products are equal. Reactants are still being converted to products (and vice…
Read more →An object of mass m is dropped from height h above a planet of mass M and radius R. Find an expression for the object’s speed as it hits the ground. Answer Mass of object = m Height above planet = h Mass of the planet = M Radius of planet…
Read more →Force F = -10jN is exerted on a particle at r = (5i + 5j) m. What is the torque on the particle about the origin? Answer: r = (-50k) N * m. Explanation
Read more →A 6.00-cm-diameter sphere with a mass of 89.3 g is neutrally buoyant in a liquid. Identify the liquid. Answer: Ethyl alcohol. Explanation To two significant figure, this is equal 790 kg per cubic meter, this is exactly equal to the…
Read more →What does the equation z = y^2 represent? Answer: parabolic cylinder Explanation Recall from the previous subquestion that we have identified y=x^2 as a parabola in R^2 in the xy-plane. Likewise, z=y^2 represents a parabola in R^2 in the…
Read more →What should a sailboat operator do when approaching a PWC head-on? Answer A sailboat operator should maintain its current speed and its current course, while the PWC should maneuver to avoid the sailboat as the sailboat lacks…
Read more →A solid gold bar is pulled up from the hold of the sunken RMS Titanic. (a) What happens to its volume as it goes from the pressure at the ship to the lower pressure at the ocean’s surface? (b) The pressure difference is proportional to…
Read more →A football is kicked straight up into the air, it hits the ground 5.2 s later. What was the greatest height reached by the ball? With what speed did it leave the kicker’s foot? Answer The distance can be found using. Remember we only need…
Read more →You are the boat operator. When are you required to assist anyone injured in an accident? A. if your passengers are not in danger B. If you are towing a water skier C. At night only D. During the day only Answer: A. if your passengers are…
Read more →An earth satellite moves in a circular orbit at a speed of 5500 m/s. What is its orbit period? Answer: T = 4.19 h Explanation Givens: When a satellite is orbiting the Earth, the only force that is acting on it is the gravitational force…
Read more →Which set of quantum numbers cannot specify an orbital? a. n = 2, l = 1, m1 = – 1 b. n = 3, l = 2, m1 = 0, c. n = 3, l = 3, m1 = 2 d. n = 4, l = 3, m1 = 0 Answer: c. n = 3, […]
Read more →The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. The change in shape triggers a series of events that results in an electrical signal being sent to the brain that…
Read more →What are the common units of pressure? List them in order of smallest to largest unit. 1 Pa, 1 psi, 1 torr, 1 mm Hg, 1 in Hg, 1 atm: Unit Average Air pressure at Sea level Pascal (Pa) 101,325 kiloPascal (kPa) 101,325 Atmosphere (atm) 1…
Read more →Find a nonzero vector orthogonal to the plane through the points P, Q, and R, P(0,-2,0), Q(4,1,-2), R(5,3,1). Answer: < -1, -7, 6 > or <1, 7, -6 > Explanation You may have gotten < 1, 7, -6 > instead by using a different order for the…
Read more →An electron has been accelerated from rest through a potential difference of 1000 V. a. What is its kinetic energy, in electron volts? b. What is its kinetic energy, in joules? c. What is its speed? Answer: v = 0.019 * 10^9 m/s. Explanation
Read more →Rank the light intensity, from largest to smallest at the point P in the figures Answer We are given the following image Since option B has the greatest value in relation to P it is the correct answer.
Read more →A small airplane takes on 245 L of fuel. If the density of the fuel is 0.821 g/mL, what mass of fuel has the airplane taken on? Answer: 201145g. Explanation To compute the mass of the fuel. Use the formula mass = density x volume. And…
Read more →What are two types of oligarchies? theocracy and monarchy dictatorship and theocracy communism and dictatorship theocracy and communism Answer: Theocracy and communism. Explanation Oligarchy is where a small group of people have control…
Read more →For the problem, identify all the forces acting on the object and draw a free-body diagram of the object. An ascending elevator, hanging from a cable, is coming to a stop. Answer The forces that are acting on the elevator, as shown in the…
Read more →Which ions remain in solution, unreacted, after each of the following pairs of solutions is mixed? potassium carbonate and magnesium sulfate. Answer When potassium carbonate and magnesium sulfate are mixed, the solution contains:
Read more →Three identical point charges q are placed at each of three corners of a square of side L. Find the magnitude and direction of the net force on a point charge -3q placed (a) at the center of the square and (b) at the vacant corner of the…
Read more →A Boat Is Towing Two Skiers At The Same Time. How Long Should The Tow Lines Be? both lines should be the same length. the oldest skier’s line should be longer. the skier with the most colorful skis should have a longer line. the skier not…
Read more →What is most likely to cause someone to fall overboard? balancing the weight of people and gear sitting on a pedestal chair while anchored fishing from a boat standing up in a boat Answer: standing up in a boat. Explanation Someone is…
Read more →How many 20 bills would it take to make 1000? Answer: 50 pieces. Explanation Determine the number of $20 bills: $1,000 / $20 = 50. It will need 50 pieces of $20 bill to make $1,000.
Read more →Indicate the concentration of each ion present in the solution formed by mixing 42.0 mL of 0.170 M NaOH with 37.6 mL of 0.400 M NaOH, Answer: nNaOH = nNa+ = nOH- = 0.022mol. Explanation We can do this by calculating the volume and…
Read more →Child restraint anchorage systems should have__________lower anchorages. One Four Two Three Answer: Two Explanation Two lower anchorages are required in a child restraint anchorage system. A vehicle system that is used to attach a child…
Read more →Choose the element with the more negative (more exothermic) electron affinity from each pair. a. Mg or S b. K or Cs c. Si or P d. Ga or Br. Answer: A: S B: K C: Si D: Br Explanation PART A: Magnesium and sulfur are both located in the…
Read more →Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equal to 60 N at one end, at what point does the other person lift? Begin with a free-body diagram of the board.…
Read more →According to this segment, how often do these accidents occur Answer: Every 30 minutes. Where is the segment There are no attached segments According to this division, there will be an accident every 30 minutes. The causes of accidents…
Read more →The right nostril and right ear are __________.I’m not quite sure what it is asking for but I believe it wants directional or orientational terms from Anatomy and I have already tried lateral and superficial. inferior = below proximal =…
Read more →Develop : Assess :: Train: Develop is to assess as train is to A) Change B) Educate C) Analyze D) Recruit Answer: Develop : Assess :: Train: Analyze. Develop is to assess as train is to analyze – C) Analyze. Explanation “Develop” refers…
Read more →For an ideal gas, classify the following pairs of properties as directly or inversely proportional. P and n, V and n, P and T, T and V, P and V. Answer: P and n are directly proportional V and n are directly proportional P and T are…
Read more →The human circulatory system is closed-that is, the blood pumped out of the left ventricle of the heart into the arteries is constrained to a series of continuous, branching vessels as it passes through the capillaries and then into the…
Read more →Sleek Sneakers Co. is one of many firms in the market for shoes. a. Assume that Sleek is currently earning short-run economic profit. On a correctly labeled diagram, show Sleek’s profit-maximizing output and price, as well as the area…
Read more →The U.S. quarter has a mass of 5.67 g and is approximately 1.55 mm thick. How many quarters would have to be stacked to reach 575 ft, the height of the Washington Monument? Answer: 1.13 x 10^5 quarters. Explanation Begin with the height…
Read more →Silver chloride, often used in silver plating, contains 75.27% Ag by mass. Calculate the mass of silver chloride required to plate 155 mg of pure silver. Answer: = 205,93 mg AgCl Each percentage represents the number of milligrams of an…
Read more →What Are The Nearest Cross Streets To Carnegie Deli? Answer: Carnegie Deli was a chain store with a small delicatessen and used to be based in New York City. The main branch used to be located at 854 7th Avenue in Midtown Manhattan, which…
Read more →Large Trucks Can Be ___________ Times Longer Than Passenger Cars Answer: Seven. Large Trucks Can Be Seven Times Longer Than Passenger Cars. Explanation On average, vehicle lengths are about 2.5 to 3.5 meters for passenger cars and 17.5 to…
Read more →You’re allowed to use a cell phone while driving as long as there isn’t any oncoming traffic. a. True b. False Answer: False. You’re not allowed to use a cell phone while driving. Explanation False, you are never allowed to use your cell…
Read more →Which explains the connection between the law of demand and excess demand? The law states that price decreases lead to greater demand and limited supply, which occur during excess demand. The law states that price increases lead to…
Read more →Supporters of using the atomic bomb at the end of World War II believed that A. Japan might win the war if the bomb was not used. B. Americans were tired of war and the US should end it quickly. C. Russia was developing a bomb and the US…
Read more →How did the 1840 World’s Anti-Slavery Convention affect the women’s suffrage movement? Women and men participated equally in the convention; this helped show the US government that women deserved the right to vote. Women and men…
Read more →A Particle Traveling Around A Circle At Constant Speed Will Experience An Acceleration. True Or False? Answer: True. Explanation True. Velocity is a vector, which means it has both a magnitude and a direction. Acceleration is defined as…
Read more →A Particle Traveling Around A Circle At Constant Speed Will Not Experience An Acceleration. True Or False? Answer: False. Explanation False. Acceleration is a vector quantity and it describes the change in velocity, either in its…
Read more →Find an equation for the surface obtained by rotating the parabola y = x^2 about the y-axis. Answer: y = x^2 + z^2 Explanation Rotate y = x^2 around the y-axis When rotated the traces parallel to the xz-plane are circles. So the equation…
Read more →When using the Lens Equation, a real object has a: a) positive image distance b) positive object distance c) negative image distance Answer: When using the Lens Equation A real object always has a positive object distance. Explanation The…
Read more →Which operation on a PWC requires more than idle speed? Answer: Steering control Explanation The operation on a PWC that will require more than idle speed is steering control. A PWC is a personal watercraft that may be any jet ski, water…
Read more →You have a pick up truck and want to haul a load of trash or garbage in the back. You must do what? Answer: Tie up the garbage bags or close the roof over the back of your pick up truck. Explanation When hauling a load of trash/garbage in…
Read more →