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Q1. The acceleration of gravity is 10 m/s2. What is the acceleration of a 39 kg pail of cement that is pulled upward (not sideways) with a force of 421 N? Answer in units of m/s2
Q2. A race car starts from rest on a circular track of radius 573m. The car's speed increases at the constant rate of 0.470m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.
(a) The speed of race car
(b) distance travelled
(c) elapsed time
What is the focal length of this mirror. If the object is 25 cm in front of the mirror, what is the image distance.
How long can craft hover over the moon surface Contract between Einstein's calculations and observed precession
An electric field of 8.55x10^5 V/m is desired between two parallel plates, each of area 35.00 cm^2 and separated by 2.45mm of air. What charge should be on each plate.
Now the gymnast (not holding any additional mass) walks directly above right support. What is the force the left support exerts on beam.
What is EMF in the secondary circuit
A somewhat longer cable replaces the old and is attached to the steel bar 5 m from its upper end, connecting to the same place on the wall as before and maintaining the same angle between the bar and the wall.
Compute the horizontal distance the ball
What is the velocity of observer B relative to observer A . A diver shines a light up to surface of a flat glass-bottomed boat at an angle of 36 relative to the normal.
An object of mass 555 grams sitting on a plane inclined at 35 degrees doesn't slide. Now the plane is lifted to the angle of 50 degrees and the object slides down plane knowing that the coefficient of kinetic friction is 0.44, find out the coefficien..
Define proton-proton chain efficiently
Determine the eccentricity of the orbit of Uranus
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
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