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The radius of the moon is 1/4 of that of the earth and its mean density is 4/5 that of the earth. Find the force of attraction of the moon on a mass of 100 kilogram on the lunar surface.
Two Resistors R1=100 Ohms and R2= 200 ohms are connected inparallel across a battery. The current through R1 is 0.150 amperes.What is the terminal voltage provided by the battery, and what is the total current through the battery?
The avarage intensity of solar radiation that falls normally on surface just outside the earth's atmosphere is 1.4 kW/m^2. What radiation pressure is exerted on this surface, assuming complete absorption? How does this pressure compare with the earth..
A 68.0 kilogram man throws a 0.0440 kilogram snowball forward with a ground speed of 29.0 m/s. Determine the velocities of the two people after the snowball is exchanged
The diffusion constant for the alcohol ethanol in water is 1.24 10-9 m2/s. A cylinder has a cross-sectional area of 3.85 cm2 and a length of 1.86 cm. what mass of ethanol diffuses through the cylinder
A copy-cat daredevil tries to reenact Evel Knievel's 1974 attempt to jump the Snake River Canyon in a rocket-powered motorcycle. What is the minimum launch speed required for the daredevil
A 22 g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 k and has a latent heat of vaporization of 200 kJ/kg? Assume for simplicity that the spec..
As a spaceship flies past with speed v, you observe that 1.0000s elapses on the ship's clock in the same time that 1.0000min elapses on Earth. How fast is the ship traveling, relative to the Earth
A 65-g ice cube at 0°C is placed in 887 g of water at 25°C. What is the final temperature of the mixture
An object at rest is suddenly broken apart into twofragments by an explosion. What is the ratio of their masses
Determine the blaze angle if light of 395 nm impinges on a grating having a grove density of 1255 lines per mm
An unstretched spring is 13.0 cm long. When you hang an 845 g weight from it, it stretches to a length of 16.0 cm. What is the force constant (in N/m) of this spring
An 8.50kg point mass and a 15.0kg point mass are held in place 50.0 cm apart. Find the direction of the acceleration of the particle
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