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Question1
A fishing pole is 2.00 m long and inclined above horizontal at the angle of 20.0°. A fish is pulling on it with a force of 100N 37-degrees below horizontal. What is torque exerted by the fish about an axis perpendicular to the page and passing during the hand of the person holding the pole?
Question2
A wheel starts from rest and rotates with constant angular to reach angular speed of 15.0 rad/s in 3.0s. Find out the magnitude of angular acceleration of the wheel and an angle in radians through that rotates in this time interval.
Question3
(a) A very powerful vacuum cleaner has a hose 2.86 cm in diameter. With no nozzle on hose, what is weight of the heaviest brick it can lift?
(b) A very powerful octopus uses one sucker, of diameter 2.86 cm, on each of the two shells of a clam, in an attempt to pull the shells apart.
Find out the greatest force octopus can exert in salt water
Three point masses each of mass m are connected by two thin rods each of mass M and length L. The central mass is at an origin and the z-axis is directed out of the page.
The equation of a transverse wave traveling along a very long string is y = 5.0 sin (0.055 ?x + 6.0 ?t), where x and y are expressed in centimeters and t is in seconds. Determine the amplitude of propagation of the wave.
Diffraction grating produces its third-order bright band at an angle of 79.4 degrees for light of wavelength 731nm. Find the angular location of the first-order bright band
A nearsighted person wears contacts with a focal length of ? 6.5cm, what is her uncorrected far-point distance
An undersea research chamber for aquanauts is spherical with an external diameter of 4.7 m. calculate the buoyant force on the chamber
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.0 x 10^4 rev/min. Find the drill's angular acceleration
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.875 rad/s. You, with a mass of 69.5 kg, Calculate the total angular momentum of the system
What is the net electric force acting on particle.
A proton moves perpendicular to a uniform magnetic field Barrowbold at a speed of 1.20 107 m/s, Determine the magnitude and direction of the field
A 65-kg woman cheats on her diet and eats a 612-Calorie (612 kcal) jelly doughnut for breakfast. If the human body is only 21% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakf..
A 75kg hiker climbs to the top of a 4000m -high mountain. The climb is made in 5.0h starting at an elevation of 3000m. Calculate the average power output in horsepower
question1find out the coefficient of kinetic friction between a 3.15 kg block and horizontal surface on which it rests
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