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Consider a hypothetical planet in our solar system whose average distance from the Sun is about four times that of Earth. Decide the orbital period for this hypothetical planet.
A black hole is roughly defined as a an object dense enough that the speed needed for launching things from its surface must be the speed of light or greater. 3.00x108m/s. Determine the maximum radius of the earth so that it might be a black hole. Th..
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
a cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. as it rises to a
A sample of serum has a mass of 54 mg and a volume of 225 cm3. What is its density in g/cm3? What would be the mass of 150 fluid ounces of this serum? What would be the volume of 1 pound of this serum?
a hydrogen atom is in its first excited state n 2. using the bohr theory of the atom calculate the following.a the
the two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm red and 486 nmblue.
Two musicians are comparing their clarinets. The first clarinet produces a tone that is known to be 442Hz, If the second clarinet produces a higher pitched tone than the first clarinet, what is the second clarinet's frequency
a science-fair radio uses a homemade capacitor made of two 35cm x 35cm sheets of aluminum foil separated by a
Compute the total distance that the mass has fallen.
A helicopter (m=1250 kilogram) is cruising at a speed of 25.0 m/s at an altitude of 185 meter. Find the total mechanical energy of the helicopter
Three equal positive charges Q are each fixed at a corner of an equiliateral triangle of side length a, Draw a free body diagram for the negative charge, Find the magnitudes of the net force on the negative charge
Use work and energy to calculate the stopping force on an egg ( we will model it as an spherical object) that is dropped form a height of 2m
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