A ball is swung in a horizontal circle as shown in the diagram. It takes 5.0 seconds to make 10 revolutions. The mass of the ball is 0.25 kg, and the length of the string is 0.75 m. How long does it take the ball to make one revolution? T = s
2. How much distance does the ball move in one revolution? (Hint: Find the distance around the circle.) d = m
3. Calculate the speed of the ball. v = m/s
4. What is the centripetal acceleration of the ball? ac = m/s 2
5. What must be the tension in the string in order to keep this ball in circular motion as described above? Fc = N
6. How many times larger/smaller must the tension be to swing the ball at twice this speed, while keeping the radius the same?

Plz only answer if you actually know because I need answers, not people that come to mess around. Don't waste my time.

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?