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A small block of mass (m=2kg) is sent from point A with a speed of 7.0 m/s. the indicated heights are h1=6.0 and h2=2.0. considering no friction along the path A-B-C and calculate: a. the speed of the block at point B b. the speed of the block at point C Considering friction along C-D: c. describe the motion of the object along the CD portion
A long solenoid of length 7.0 x 10^-2 meters and cross-sectional area of 4.0 x 10^-5 meters^2 contains 6200 turns per meter. Find the energy stored in the solenoid after 3 seconds
At a given instant, the blood pressure in the heart is 1.50 104 Pa. If an artery in the brain is 0.43 m above the heart, what is the pressure in the artery
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. how much force is applied to the branch
Communications satellites are used to bounce radio waves from the earth's surface to send messages around the curvature of the earth. In order to be available all the time, they must remain above the same point on the earth's surface and must move..
A cooling fan is turned off when it is running at 850rev/min. It turns 1500 revolutions before it comes to astop. What is the fan's angular acceleration
A wheel of radius 0.390 m starts from rest and accelerates uniformly to an angular speed of 17.0 rad/s in 4.00 s. Calculate the angular displacement of the wheel
q1.a thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates
The battery of a pocket calculator has a voltage of 4.0 V and devilers a current of 0.17 mA, How much energy does the battery deliver to the calculator circuit
A fireman tosses his 0.85-kg hat onto a peg, where it oscillates as a physical pendulum, find the moment of inertia of the hat about the pivot point
the headlights on a certain car are measured to be 1.1 m apart. the diameter of the pupil in a human eye is 2.5 mm.
An ion accelerated through a potential difference of 102 V experiences an increase in kinetic energy of 3.01 × 10?17 J
A 667 kg satellite is in acircular orbit about the Earth at a height above the Earth equal tothe Earth's mean radius. Find the gravitational force acting on it
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