Exams & Certification
What is the height in meters of a 5’4″ person? The Correct Answer and Explanation is: Correct Answer:A person who is 5 feet 4 inches tall is approximately 1.63 meters tall. Explanation Converting height from feet and inches to meters requires two key steps. First, the height in feet and inches must be expressed entirely […]
What is the height in meters of a 5’4″ person Read More »
Merchants C and D sell the same article at64.95, respectively. They both advertise that they will match the price offered by any other store on any product that they stock. a. What discount rate must C give to match D’s price marked down by 20% during a sale? b. What discount rate must D give
Merchants C and D sell the same article at64.95, respectively. Read More »
Multiple Choice: Please select the best answer and click “submit.” What is the measure of the radius of ?M? R 14.8 S 10.5 10.5 M A. 21.0 units B. 5.25 units C. 14.8 units D. 10.5 units The Correct Answer and Explanation is: The correct answer is C. 14.8 units. Explanation: The radius of a
Multiple Choice: Please select the best answer and click “submit. Read More »
Consider the following balanced chemical equation: 2 Al (s) + 3 CuCl2 (aq) —> 2 AlCl3 (aq) + 3 Cu (s) Which of the following statements best describes what is occurring during this reaction? A. Aluminum ions are replacing copper atoms from the solution. B. Aluminum atoms are replacing copper ions from the solution. C.
Consider the following balanced chemical equation Read More »
In 1939 or 1940 , Emanuel Zacchini took his human-cannonball act to an extreme: After being shot from a cannon, he soared over three Ferris wheels and into a net (See the figure). Assume that he is launched with a speed ofand at an angle of. (a) Treating him as a particle, calculate his clearance
Why is a standard unit of measurement necessary in science ad industry? 3 Match the following prefixes with the correct name: mega trillionth millionth kilo C. million nano D. billion deci billionth tenth micro G. thousand giga H. hundredth centi pico Indicate the standard units for measuring length, mass, volume, and temperature in the metric
Why is a standard unit of measurement necessary in science ad industry Read More »
The man walks top of the hill in two legs and get down in four legs how? The Correct Answer and Explanation is: Correct Answer:The man uses a walking stick or cane when descending the hill, making it appear as though he is walking on four legs. ExplanationAt first glance, the scenario may appear puzzling.
The man walks top of the hill in two legs and get down in four legs how Read More »
A number is 2 less than its square. Find all such numbers. Correct Answer: The numbers that are 2 less than their square are –1 and 2. Explanation ( Consider a number represented by a variable, say xxx. The statement “a number is 2 less than its square” can be expressed as a mathematical equation.
A number is 2 less than its square. Read More »
write the number less than 50, which are multiple of 2 as well as 3 The Correct Answer and Explanation is: Correct Answer:The numbers less than 50 that are multiples of both 2 and 3 are:6, 12, 18, 24, 30, 36, 42, 48 Explanation:To find numbers that meet both conditions — being less than 50
write the number less than 50, which are multiple of 2 as well as 3 Read More »
To catalyze a biochemical reaction, an enzyme typically dissociates into additional reactant molecules, thereby increasing the reaction rate. It decomposes and releases energy to increase the number of successful collisions between reactant molecules. It binds temporarily to reactant molecules to lower the activation energy of the reaction. It drives the reaction to completion by effectively