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Fencing for the north and south sides costs $9 per foot and fencing for the other two sides costs $6 per foot. What is the maximum area that can be enclosed for $5400?
Assuming the energy of a single pulse is delivered to a volume of the cornea 1 mm3, and assuming the pulses are delivered so quickly that the energy deposited has no time to flow out of that volume,
Describe the path of the object by stating the radius of the circle, the position at time t = 0, the orientation of the motion, and the time t that it takes to complete one revolution around the cir
During a 63-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 7.8-mA current in a nearby secondary coil. The secondary coil is part of a circuit
A 5.0 mm diameter proton beam carries a total current of 1.5mA. The current density in the proton beam, which increases with distance from the center, is given by J = Jedge(r/R), where R is the radi
A 37741 lb force is applied to a surface that measures 90 in long and 85 in wide. Determine the pressure exerted on the surface by the force in both psi and Pa. 1 Pa = 1.45×10^-4 psi.
List all the possible rational zeros using the Rational Zeros Theorem. Use Descartes' Rule of Signs to determine the number of positive real zeros and negative real zeros.
Consider a uranium nucleus to be a sphere of radius R = 7.4x10^-15m with a charge of 92e distributed uniformly throughout its volume. (a) What is the electric force exerted on an electron when it is
In a RLC circuit these three elements are connected in series: a resistance 0r 20 ohms, a 35.0 mH inductor, and a 50.0 micro Farriday capacitor. The AC storage has an rms voltage of 100.0V and as a
Write a formula that defines, the angle swept out by the ball in radians in terms of t, the number of seconds since Bill started twirling the ball at this rate.
If the two buckets are pulled upward with an acceleration of 1.80 m/s2 by the upper cord, calculate the tension in each cord.
You throw a ball, m=2kg, with an initial velocity of 20 m/s at an angle of 60 degrees from the top of a 30m cliff. a) Using energy considerations, what is the magnitude of the velocity when it hits
A 12.0 V battery is in series with a switch, a 0.30 H inductor, and a 19 Ω resistor. A). What's the time constant τ? I calculated τ to be 0.016 s or 16 ms which came back correct. It i
The Orbit" is a ride at an amusement park that rotates passengers seated 28 feet from the center of rotation at 1.8 radians/sec counterclockwise. How many seconds does it take The Orbit to make one f
After being released, the block hits a rough surface with a coefficient of friction of 0.6. How far does the block travel across the rough surface before it comes to a stop?
Bruce places a 2.0kg block over a small hole on a table. He then puts a gun under the table and shoots a 35.0g bullet into the block where it lodges. If the block rises1.3m above the table, how fast
If relative atomic mass of sodium is 23 and the density is 0.97 gcm -3. If the volume of one sodium atom is V , what is the value for Avogadro Constant ?
Given point P(-15/17, 8/17) in on the unit circle U corresponding to a real number t. Find the values of the trigonometric functions at t.
a) What is the velocity of the block after it leaves the spring but before it gets to the incline? b) How far up the incline (along the hypotenuse of the triangle) does the block travel?
A solution of acetic acid,HC2H3O2, on a laboratory shelf wasof undetermined concentration. If the pH of the solution was found to be 2.81, what was the original concentration of the acetic acid?
An archer puts a 0.30-kg arrow to the bowstring. An average force of 201 N is exerted to draw the string back 1.3 m. Assuming that all the energy goes into the arrow, with what speed does the arrow
Electrolysis of molten MgCl2 is the finalproduction step in the isolation of magnesium from seawater.Assuming that 37.8 g Mg metal forms, calculate the following.
Radioactive iodine , 131I which is frequently used in tracer studies involving the thyroid gland, decays according to N= N0 (0.5) t/8 , where N0 is the initial dose and t is the time in days. Find the
A proton has an initial speed of 4.9 x 105 m/s. (a) What potential difference is required to bring the proton to rest?