An object with a mass of 1 kg is attached to one end of a cord 10 m long. the cord will break if its tension exceeds 10 n. the object is swung in a
horizontal circle on a frictionless surface. the other end of the cord remains fixed. find the maximum speed the object can attain without breaking
the cord.
10 m/s
20 m/s
25 m/s
15 m/s

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

What is the temperature in degrees celsius of a substance with a tempature of 49k

In a good thermo flask the main cause of heat loss is