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Question: Obeying Proust's law of constant proportions, stannous oxide is always 88.1% tin and 11.9% oxygen by weight; stannic oxide is 78.7% tin and 21.3% oxygen. Show that these numbers imply that in forming stannous oxide 100g of tin combines with 13.5g of oxygen.
On a clear day at a certain location, a 100 V/m vertical electric field exists near the Earth's surface. Compute the energy density of the electric field
The magnetic field in an electromagnetic wave has a peak value given by B = 3.5 µT. For this wave, find the peak electric field strength
What is the reading on each of the scales? On the left scale. Express your answer using two significant figures. Part A What is the reading on each of the scales? On the left scale.
question1a rocket with mass m is fired vertically upward. at an instant it reaches an altitude of 800m and a speed of
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 55.3 cm (0.553 m), What is the volume flow rate of the petroleum along the pipe
an arrow is shot at an angle of theta45 degrees above the horizontal. the arrow hits a tree a horizontal distance d220m
An astronaut travels to a star system 4.5 ly away at a speed of 0.9c. Suppose that the time needed to accelerate and decelerate is negligible. The journey take according to Mission Control on earth takes 5 years. And the journey takes2.2 years accord..
On a workday the average decibel level of a busy street is 84 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
A light bulb is wired in series with a 133-? resistor, and they are connected across a 120-V source. What are the two possible resistances of the light bulb
The radius of the planet Saturn is 5.85x10 meters to the 7th power, and its mass is 5.68x10 kg to the 26th power. Find the density of Saturn
Suppose a 32.0 kg child sits 1.37 m to the left of center on the same seesaw as the problem you just solved. A second child sits at the end on the opposite side, Find the normal force acting at the pivot point
A motorist suddenly notices a stalled car and slams on the brakes, negatively accelerating at 6.2. How fast was the motorist going when the brakes were first applied
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