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  • Waiting for answer What metric unit is used to measure length?

    Usually when measuring length, the meter is used. However, it depends on what you are measuring the length of. For example, if you were to measure the length of a basketball court,...

  • Waiting for answer How do you calculate the force of sliding friction?

    That really depends on what you know about the situation. The simplest way is if you know the weight of the object and the materials you could use: ##F_F## ##=mu F_N## Where you look-up the coefficient of sliding friction (##mu##). This assumes you're sliding along a horizontal surface so that the...

  • Waiting for answer How do you factor ##x^3 + 1/8##?

    This problem involves factoring the sum of cubes. ##(a^3+b^3)=(a+b)(a^2-ab+b^2)## For the expression ##(x^3+1/8)##: ##a=root3(x^3)=x## ##b=root3(1/8)=1/2## Solution: ##(x^3+1/8)## = ##(x+1/2)(x^2-(x*1/2)+(1/2)^2)## = ##(x+1/2)(x^2-x/2+1/4)##

  • Waiting for answer What is the verb or verb phrase in the sentence, " What is t...

    The verb is 'is' There is only one verb in the sentence that connects "What" with "the most feared animal in the West?". The phrase 'most feared' functions as an adjective for the no...

  • Waiting for answer What is the Ka of a strong acid like HCl?

    The approximate value of ##pKa## is ##-7## for ##HCl##. Hydrochloric acid is a strong acid and it is considered to completely dissociate in water under the following equation: ##HCl...

  • Waiting for answer What polyatomic ions end in -ide?

    The that end in -ide include, ##OH^-## hydroxide, ##O_2^-## peroxide, ##CN^-## cyanide, ##NH_2^-## amide and ##HS^-## hydrogen sulfide. The -ide suffix, is usually reserved for monatomic anions. Non-metal ions like oxygen, fluorine and chlorine take on the -ide and become oxide, fluoride and chlo...

  • Waiting for answer How do you evaluate the expression ##n^4## when n=7 and when...

    When ##n=7##, ##n^4=7^4=7*7*7*7=2401.## Similarly, when ##n=0.4##, ##n^4=(0.4)^4=(0.4)*(0.4)*(0.4)*(0.4)=0.0256.## When ##n=7##, ##n^4=7^4=7*7*7*7=2401## Similarly, when ##n=0.4#...

  • Waiting for answer How are negative exponents used in real life?

    In dealing with both extremely large and extremely small numbers the use of an exponent, positive and negative, in standard practice. If, for example, you wanted to show the size of a single atom of hydrogen it would be: 1.2 x 10 to the -10 power. The long form would look like: .000000000012.

  • Waiting for answer What is the slope and y-intercept of the line y=-5x+2?

    The is ##5## The ##y##-intercept is ##(0,2)## This is the slope-intercept form of a line (you can read the slope and y-intercept straight off): ##y=mx+b## where: ##(x,y) - ## p...

  • Waiting for answer How did the Spanish plan to protect their colonies in the Ne...

    The Spanish planned to protect their New World colonies by imposing strict guidelines to safeguard their investments. The Spanish colonies in the new world were guided by immovable,...

  • Waiting for answer If nitric acid is derived from the nitrate ion, what is the...

    Nitrate anion is the conjugate base of nitric acid...... And thus nitrate anion is nitric acid LESS a proton, ##H^+##. So we add a proton to the conjugate base, we get the original...

  • Waiting for answer How is RNA different from DNA?

    RNA 1.single helix structure 2.transmits genes from the nucleus to the ribosomes for protein synthesis 3.located inside and outside the nucleus of a cell DNA 1.has a double helix structure 2.codes for information within the nucleus 3.only located within the nucleus of the cell

  • Waiting for answer What is the square root of 1/169?

    ##1/13## The square root of ##1## is ##sqrt(1) = 1## The square root of ##169## is ##sqrt(169) = sqrt(13 * 13) = 13## Hence, the square root of their ratio will be equal to...

  • Waiting for answer What is glacial till and how could it be identified in the f...

    Glacial till is the simply the unsorted sediment and rock fragments carried by a glacier. Till can contain everything from clay-size material all the way to boulder size material. Large till deposits are found throughout the in the northern Midwest and northeast U.S. and Canada due to the deposits...

  • Waiting for answer Which is not a good nucleophile, phenoxide ion or acetate io...

    In general, the better nucleophile should have electron density that is more concentrated onto a single atom so that it is easier to donate. Whereas the phenoxide ion is simply the aromatic phenol anion, ##"C"_6"H"_5-"O"^(-)##, with a "well-defined" HOMO (located on the negatively-charged oxygen),...

  • Waiting for answer What is menstruation? What is puberty?

    Menstruation is a monthly cycle in women which is a sign of sexual maturity of a girl. Puberty is the age of adolescence, showing signs of sexual maturity of a boy or a girl.

  • Waiting for answer What is the polar equation of a horizontal line?

    The polar equation of ##y=k## is ##r=kcsctheta##. This can be obtained by using ##y=rsintheta##, one of the conversion equations that relate the Cartesian and polar systems. By substitution, we have ##rsintheta=k##, and consequently ##r=k/sintheta##, which is equivalent to ##r=kcsctheta##. F...

  • Waiting for answer Why do plants need both chloroplasts and mitochondria?

    Chloroplast to make their food and mitochondria to respire. Chloroplasts are present in photosynthetic plants and is responsible for making the food of the plant. Oxygen is released...

  • Waiting for answer How do you find square root of 300?

    The answer to this question would still have a radical, it would be 10 ##sqrt3## That is the best way to put it into simplest forms. 300 is not a perfect square as we know it, so th...

  • Waiting for answer In a Diels-Alder Reaction, 3-sulfolene produces a 1,3-butadi...

    This is actually a reverse , also known as a decomposition reaction in general. We know that from how one reactant generates two. The mechanism for this is fairly intuitive if one realizes that once 1,3-butadiene is to be formed in the mechanism, it will imply breaking the two ##"C"-"S"## bonds i...

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