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You are working on a project with the NASA to launch a rocket to Mars, with the rocket blasting off from earth if earth and Mars are just aligned all along a straight line from the sun. As a first s
What is the charge of the electron in zirkombs? A chemist in a galaxy far away performed the Millikan oil drop experiment and got the following results for the charge on various drops.
A bottle of 3% H2O2 is left open and allowed to reach equilibrium with the atmosphere. Calculate the concentration of H2O2 in this solution at equilibrium.
A negatively charged balloon consists of 3.5 micro coulombs of charge. Determine how many surplus electrons are on the balloon?
For any natural number n, let d(n) denote number of positive divisors of n. For instance, d(4) = 3 because 4 has 3 positive divisors: 1,2, and 4. Explain those natural numbers n for which d(n) = 2.
Determine the molar concentration of the calcium ion in the resulting solution? 15.00 mL of a 0.127 M CaCl2 solution are mixed with25.6 mL of a .137 M Ca (NO3)2 solution.
(i) Evaluate the magnetic field at the center, (ii) When n is allowed to become very big (n = ∞), illustrate that the formula in part (i) reduces to that for a circular loop.
How many lead atoms are in a cube of lead that has a volume of 2.00cm cubed, if the density of lead is 11.3 g/cm cubed? A lead atom has a mass of 3.14 x 10 to the negative 22nd g.
Determine the pressure equilibrium constant Kp for the reaction at this temperature. Calculate the partial pressure of chlorine in the vessel?
(i) Determine the period of the motion, (ii) Determine the maximum values of its speed and acceleration and (iii) Write down the expressions for the position, velocity and acceleration as functions
X gm of a metal (eq wt 12) was completely dissolved in the 100cc of N/2 HCl. The volume was then made up to 500cc of this dilute acid. 25ml of this acid required 1705cc of N/10 NaOH for complete ne
A mass on a spring oscillates with the simple harmonic motion of amplitude A around the equilibrium position x = 0. Its maximum speed is vmax and its maximum acceleration is amax.
Explain what mass of acetic anhydride is required to completely consume the1.00 * 102 g salicylic acid?Determine the maximum mass of aspirin that could be formed in this reaction?
Nitrous oxide (N20) is also called "laughing gas". It can be prepared by the thermal decomposition of ammonium nitrate (NH4NO3). The other product is H2O.
A mess kit of 2.8 kg sliding on a frictionless surface explodes into two 1.4 kg parts, one moving at 1.2 m/s, due north, and the other at 4.6 m/s, 40° north of east. Determine the original spee
Determine the number of moles of H2O originlly present in the compound if 9.6 g of CuSO4 are left after heating 15.01 g of the blue compound.
The two people carry a heavy electric motor by placing it on the light board 2.70 long. One person lifts at one end with a force of around 410, and the other lifts the opposite end with a force of
Calculate the chemistry principle for silly putty and candle wax as it pertains to hydrophilic/hydrophobic, polar/non polar and soluble/non-soluble and binding/non-binding?
A straight conductor parallel to the x-axis can slide devoid of friction on top of two horizontal conducting rails which are parallel to the y-axis and a distance of L = .2 m apart, in a vertical ma
Again, order is significant, and repetition is permitted. Find number of combinations are possible with the 4-click combination?
The melting point of Pb is 327.4 degrees C; its heat of fusion is 4.774 kJ/mol; its average heat capacity in the temperature range from 51-327.4 degrees C is 0.134 J/g*K.
Determine the pressure exerted by the Ar for a molar volume of 1.42L/mol at 300K using the Vander Waals equation of state. The van der Waals parameters a and b for Ar are 1.355 bar dm^6/mol^2 and .0
Marissa drags a duffel bag of 23 kg and 14 m across the gym floor. When the coefficient of kinetic friction among the floor and the bag is around 0.15, determine how much thermal energy does Mariss
If the Cu (NO) solution contains about 6g Cu^2+ per liter determine the numbers of micrograms of Cu^2+ ion are therein one spot? In this experiment it takes about 6 micro liters of solution to form
An object experiences simple harmonic motion having a period T. In time 3T/2 the object moves via a net distance of 16D. In terms of D, determine the object's amplitude of motion?