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What is the reaction when elemental Magnesium and elemental copper are placed in an aqueous solution of copper sulfate? Why does the water turn green, and why does green stuff attach to the Magnesi
Assuming that the particle's velocity is perpendicular to the magnetic field, find the radius of the circular path on which the particle would move if it were each of the following.
A mixture of barium and silver is to be analyzed. The barium component reacts with acid to generate hydrogen gas, while the silver component does not react.
If, using a Cartesian coordinate system with origin O at the top of the hill, the hill;s profile is described by the function y = -(.003m^-1)x^2, where x and y are in meters, determine the minimum s
A mixture containing only iron (III) sulfide and iron (III) chloride is reacted with HCl. The iron sulfide reacts according to the balanced equation:
A sample of an alloy containing only zinc and aluminum had a mass of 0.5937g. When this sample was reacted with excess HCl, 315.23ml of hydrogen gas, collected over water at a barometric pressure of
Suppose that protons are fired towards the large flat side of a charged conducting plate. Initial speed of the protons is v0, and initial distance d.
What hydrogen ion concentration should be required to dissolve 0.10M MgF2 if the Ksp for magnesium fluoride is 6.8x10-9 and Ka for HF is 6.5x10-4
The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop?
The oxidation of the cyanide gives the stable cyanate ion, OCN-. The fumate ion, CNO-, is very unstable, the mercury salt being used in blasting caps.
The human eye is sensitive to electromagnetic waves in a small range of frequencies, extending from 3.90 x 10^14 hz to 7.90 x 10^14hz.
1. A plane accelerates from rest at a constant rate of 5.00 along a runway that is 1800 long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time
One end is pivoted on the axis, and the other end is connected to the axis by a string that is perpendicular to the axis. What is the tension in the string, and what is the force that the pivot appl
An artillery shell is fired with an initial velocity of 300 m/s at 52.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 45.5 s after firing. What are the x and y coor
What is the magnitude of the frictional force (in newtons) on the block if the block is at rest and the surface is horizontal?
A coin and a ring, each with the same mass, roll down an incline starting at the same time. Which one will reach the bottom first?
If he shot a dart at an antelope at rest 50 m away, and the antelope instantly began to accelerate at a constant rate away from the dart, running out of range of the dart just in time: a) Find the m
The three capacitors C=3.0*10^-6 F in series are connected across a 30-V battery. a) find the charge on each capacitor
A series combination of a 14 k resistor and an unknown capacitor is connected to a 11 V battery. One second after the circuit is completed, the voltage across the capacitor is 9 V. Determine the cap
A runner travels 100 m in 10.4 s. Assume that it takes him 1.40 s to reach his top speed, which is then maintained for the rest of the race. Find the following values: a) Average acceleration during
If a typical pad is 5.0cm thick and compresses by 2.0cm during the impact of a fall, what acceleration (in m/s^2) does the hip undergo to reduce its speed to 1.3m/s ?
Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 18.9g.
If two equal charges are separated by a certain distance, the force of repulsion is F. Given F1, if each charge in F1 is doubled and the distance is cut in half, what is the new value of the force o
Identical +1.43 µC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed to one of the empty corners, so that the total electric potenti