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The buyer for Payless Shoe store decided to order a woman’s shoe at a buyers’ meeting in Miami. The shoe will be part of the company’s Christmas promotion. New designs are coming out after Christmas, so the shoes have to be sold during the Christmas season. Payless plans to hold a special December clearance sale, in an attempt to sell all shoes not sold by November 31st. The shoes will retail at $50 per pair and the company makes a profit of $15 on each pair. At the sale price of $21 per pair, all surplus shoes can be expected to sell during the December sale. The expected demand for the shoes is 700 pairs with a standard deviation of 300 pairs. How many pairs of the shoe should the buyer order?
A cyclotron for accelerating protons has a maximum radius of 0.700 m and has a magnetic field of 0.200 T.
(A) what is the cyclotron frequency?
(B)what is kinetic energy of the protons when they emerge?
How many moles of Fe will be produced from 6 moles of H2 in this reaction?
Fe3O4 + 4H2 → 3Fe + 4H2O
Lying along the y-axis is a long, rigid wire which carries an 8.0 A current flowing in the positive direction.
(A) A 0.20 T constant magnetic field is directed along positive x-axis, find the magnetic force per unit length on the wire.
(B) If a 0.20 T constant magnetic force is directed 45 degrees from the +x-axis towards the +y-axis, solve for the magnetic force per unit length of the wire.
Find the Turing machine of
1)Language contain a, b which strings are dividable by 3
Three point charges arranged as shown. q1= 4.0x10-9C, 2 = 5.0x10-9C, q3= -6.0x10-9C. Find the net force on q1 due to q2 and q3.
q2---------- 0.5m ------q1--------- 0.3m -------q3
Why do scientists believe that the first organisms on earth were extremophiles?
Three charges each 5.0x10-6C are situated at he corners of an equilateral triangle of side 1.0m. Find the force that charge q3 experienced due to the other two charges.
What is the total capacitance of a 10.0 F, 15.0 F, 20.0 F and 5.0 F if they are connected in parallel?
A table tennis ball has a diameter of 3.80 cm and an average density of 0.0840 g/cm3. What force is required to hold it completely submerged underwater?
