why does a ball in a liquid move at a constant speed, although it is affected by forces
since after certain time, the buoyant force becomes equal to the weight of the ball and the ball moves with the terminal velocity
why does a ball in a liquid move at a constant speed, although it is affected...
A small ball is put into a cone and made to move at constant
speed v in a horizontal circle of constant radius r. (See figure
below.) (a) What is the ball’s centripetal acceleration? (b) What
is its tangential acceleration? (c) What force can counteract the
force of gravity so that the ball keeps moving in a horizontal
circle? (d) Use these insights to determine the height h the ball
is circling above the bottom of the cone. [Hint: This...
If you move at the speed of light, how does a light beam move relative to you? Why?
1) If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Express your answer numerically in centimeters per second. 2) If the ball hits Olaf and bounces off his chest horizontally at 7.70 m/s in the opposite direction, what is his speed vf after the collision? Express your answer numerically in centimeters per second.
Bonus: A ball rolls at constant speed It reaches the end of a table 1.4m high How far away from the edge of the table does the ball land? 1
A. When a ball rolls down an incline, it gains speed but its acceleration remains constant. is this true? Explain. B. What does it mean to say Σ F = 0 for an object in equilibrium?
I swing a ball around my head at constant speed in a circle with circumference 3 m. What is the work done on the ball by the 10 N tension force in the string during one revolution of the ball? A.30 J B.20 J C.10 J D.0 J Why? I need help understanding this question. Should I use Krot=1/2Iw^2 equation???
A) A conducting rod moves through a magnetic field at a constant speed. Why does the induced potential not continue to increase indefinitely? B) How can an electric field be produced without any charged objects? C) A transformer is formed when two coils are placed close enough that the magnetic field of one causes magnetic flux through the second? A changing current in one coil thus induces a current in the second. Why do you suppose transformers are not used...
A 0.19-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o’clock position, the stick's tension is 18 N. Find the tension in the stick when the ball is (a) at the twelve o’clock and (b) at the six o’clock positions.
A ball of mass m=6.9kg moves in a horizontal circle at a constant speed. It is supported by a single rope of length L=5.0m. The rope makes a constant angle of 8=16.4 degrees with the vertical as shown What is the speed of the mass? Answer in
A 0.18-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 19 N. Find the tension in the stick when the ball is (a) at the twelve o'clock and (b) at the six o'clock positions. (a) = (b) T=