Aperson exerts a force of 80 n on a rope that pulls a sled across a very smooth surface. the rope is oriented 37∘ above the horizontal. the sled has a total mass of 46 kg . the sled starts at rest and moves for 10 m. a)-determine the acceleration of the sled. b)-determine the normal force exerted by the surface on the sled. c)-determine the time take to for the sled to move 10m d)-determine the speed of the sled after moving for 10 m.

Which energy transformation occurs in the core of a nuclear reactor? nuclear energy mechanical energy nuclear energy - thermal energy thermal energy -- nuclear energy mechanical energy - nuclear energy

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

What are the factors that affect the resistance of a wire?