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A block slides upward on a rough, vertical wall at constant velocity when a force F of 60 N acts on it at an angle ? = 60? to the horizontal. The mass of the block is 3.0 kg.
a) Draw a force diagram for the block.
b) Using Newton's laws, find the normal force on the block.
c) Determine the force of kinetic friction on the block.
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
Calculate the intensity distribution
What is the coefficient of static friction
The mass of a robot is 5200 kg. This robot weighs 3750 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 107 m. What is the difference among MA - MB in the masses of these planets?
How far apart are they when lighter astronaut has move.
Consider a too-small space station that consists of a 2.7m radius rotating sphere. A man standing inside is 1.9m tall and his feet are at 1g. What is the acceleration of his head.
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 210 mi/h in 3.00 s. (a) Find the average acceleration of the plane. m/s2 (b) Assuming the acceleration is constant, find the distance the plan..
A block of iron has the dimensions of 3.00 cm x 3.00 cm x 3.00 cm. It has a mass of 213 g. When placed in water, the block sinks. What volume of water did it displace.
Two positively charged particles q1 = 2C and q2 = 2C are separated by distance d = 1.0 m. Calculate the total electric potential energy of 3 particles
The Balmer series in atomic hydrogen is the series of wavelengths emitted by the electron when it makes a transition from an energy level with n > 2 to the n = 2 level, Find the four largest wavelengths in the Lyman series
How to compute the average force
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
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