Jodi liked to run for exercise. to warm up, she walked at a constant speed for a distance of 100 m in 100 s. then she increased her speed to 4 m/s. she ran at this speed for 5 min (300 s). At that point, she began going up a steep hill and her speed dropped back to 1 m/s. it took her 4 m (240 s) to reach the top of the hill. at that time, she stopped and rested for 3 min before continuing her run. Construct a distance time graph and a speed time graph of joy motion. label the axes. then explain what is being shown as the slope of each graph changes

Need in all of themmm only answer if you know plsssss

The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?