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Suppose you find that you are able to dissolve 700 grams of salt in 2.0 L of water at 25o C. The expected amount is 360 grams per kilogram. What is your percent error for this experiment? Note: you do not need to include any minus (-) or percentage (%) signs in your answer. The absolute value of the percent error is _______ %.
1. What is the probability that a stock in the S&P 500 gained 30% or more in the last year? Gained 60% or more in the last year? 2. What is the probability that a stock in the S&P 500 lost money in the last year? Lost 30% or more?
Find the difference in decibel levels β1 & β2 of a sound source is related to the ratio of its distances r1 & r2 and find the average power generated by the horn.
A solenoid can be utilized to fire a small ball. A capacitor is utilized to energize the solenoid coil. How can I build a device by a capacitor charged to a maximum of 50V? What are the relevant parameters and how can I maximize the speed of the ball..
You measure the length of a distant car to be subtended by an angular distance of 2.0o. If the car is actually 5.0 meter long, determine approximately how far away is the car
In the Cavendish balance apparatus, suppose that m1=1.00 kg, m2= 20.0 kg, and the rod connecting each of the pairs of masses is 28.0cm long. find the magnitude of the net force on one of the small masses
a -58nC charge is distributed uniformly along the x-axis from x = -1.3 m to x = 3.4 m. Consider a point at y = 2.2 m on the y-axis. a) what is the x-component of the electric field at the point
A block of ice of mass 3.50 is placed against a horizontal spring that has force constant = 210 and is compressed a distance 2.90×10?2. Calculate the work done on the block by the spring
a defibrillator consists of a 15.4-microf capacitor that is charged to 8.2 kv.a if the capacitor is discharged in 1.0
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. Determine how much time elapses between an instant when the object's speed is at a maximum and the next instant when its acceleration is at a maxi..
A modern house is wired for 120.0 V, and the current is limited by circuit breakers to a maximum of 290.0 A. (For the purpose of this problem, treat these as DC quantities.) Calculate the minimum total resistance the circuitry in the house can hav..
The image of a very distant car is located 17 cm behind a convex mirror. what is the radius of curvature of the mirror
The wave function for a linearly polorized wave on a taut string is: y(x,y)=Asin(wt - kx + phi), where A =0.4m, w=3.2s^-1, k=8.1m^-1, phi = 0.49, t is in seconds and x and y are in meters. What is the speed of the wave in m/s?
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