Homework answers and tutorials

What we could find:
49675 results
  • Waiting for answer How does the structure of the cell membrane relate to its fu...

    The being selectively permeable regulates the entry and exit of molecules into and out of the cell. The cell membrane is also called selectively permeable membrane for the sole rea...

  • Waiting for answer Jason can travel 24##3/4## miles in ##1/2## an hour. What is...

    49.5 mph Because it's half an hour, you can just double it.

  • Waiting for answer How does nuclear decay affect the atomic number and mass num...

    changes the number of protons in of an atom, and in doing so changes the element. For example, the alpha decay of uranium-235 changes both the mass number and the atomic number of the element from 235 to 231 and from 92 to 90. The mass number decreases by 4, and the atomic number decreases by 2....

  • Waiting for answer How do you simplify the Square root of 196?

    ##sqrt(196) = 14## since ##14^2 = 14*14 = 196## Squaring is the opposite operation of square root. Actually there are two solutions to ##x^2=196##: ##14## and ##-14##. ##14^2=14*14=...

  • Waiting for answer What happened in 1870 that created bad blood between Germany...

    What happened is that Bismarck was hell bent in Unifying Germany in hurry at all cost. He reasoned that a war with France will help him achieve his goals. A totally Machiavellian approach "The End Justified The Means". France obliged knowing that the French military was not ready for a major war...

  • Waiting for answer The index of refraction for water is 1.33 and for glass it i...

    The speed of light decreases. The speed of light in a medium is inversely proportional to the refractive index of the medium. ##v=frac{v_0}{n}##, where ##v## is the speed of light...

  • Waiting for answer 100 kilometers is equal to how many miles?

    ##100## kilometers = ##62.12371## miles ##1## kilometer ##= 0.621371## miles so ##100## kilometers ##= 62.1371## miles I find it easier to remember ##8## kilometers ##~~ 5## miles #...

  • Waiting for answer Why is red bone marrow considered part of the immune system?...

    Blood cells are formed in Bone marrow including WBCs in early life Lymphocytes are formed in bone marrow then migrate to lymphnode or thymus .. Red bone marrow continues production o...

  • Waiting for answer How did the Czech people react when Alexander Dubcek was rep...

    There was a reaction of national outrage. The Prague Spring was crushed by the Soviets in August 1968 as Soviet tanks moved into Prague. The Czech people were outraged but could do l...

  • Waiting for answer What is Hydrogen?

    Hydrogen is the lightest element in . It has 1, and the chemical symbol ##"H"##. It is the most abundant element in the universe. At standard temperature and pressure, hydrogen...

  • Waiting for answer How did the Meat Inspection Act protect consumers?

    Consumer safety and health. The Meat Inspection Act ensured that there was no adultered or misbranded meats in circulation. It also ensured that meat was processed in sanitary condit...

  • Waiting for answer How much did the Louisiana Purchase cost?

    The Louisiana Purchase costed $15 million dollars for about 828,000 square miles of land.

  • Waiting for answer Finding the empirical formula of iron oxide?

    ##"Fe"_3"O"_4## So, if you assume that all the mass of iron took part in the reaction, you can say that the difference between the mass of the product and the mass of iron will repr...

  • Waiting for answer Why isn't 57 a prime number?

    ##57## is not a prime number, as it has factors other than one and itself. A prime number is one who does not have any factor other than one and itself. ##57## has ##1## and ##57##...

  • Waiting for answer What is the formula for calculating constant percent change?

    For the period from ##t_1## to ##t_2## for some state ##f(t)## with a constant percentage change, that constant percentage change is given by: ##color(white)("XX")(f(t_2)/f(t_1)-1)*100%##...

  • Waiting for answer Is NF3 an acid or a base?

    Nitrogen trifluoride , or ##"NF"_3##, is a base . Recall the definitions of acids and bases according to Lewis theory : A Lewis acid is an electron lone pair acceptor. A Lewis bas...

  • Waiting for answer A cube has a volume of ##15625## ##cm^3##. What is the surfa...

    ##SA=3750cm^2## The volume of a cube is determined by the formula ##V=s^3## where ##s## is the measurement of each edge. Since cube has six square faces, each of the faces will hav...

  • Waiting for answer What are the five most common inequality symbols?

    The five most common inequality symbols are ≠, , , ≥ and ≤. Here's what they mean: ##≠:## not equal to ## :## greater than ## :## less than ## =:## greater than or equal to ## =:## less than or equal to

  • Waiting for answer How many chromosomes are in each cell (gamete) at the end o...

    Just read this answer. When occurs, the chromosomes get divided in each cell. That is if their are four, each daughter cell gets two each.

  • Waiting for answer What is Infinity?

    It depends on the context... ##bb +-## Infinity and limits Consider the set of Real numbers ##RR##, often pictured as a line with negative numbers on the left and positive numbers...

Show on page

Learn more effectively and get better grades!

Do my homework