Abaseball of mass m1 = 0.37 kg is thrown at another ball hanging from the ceiling by a length of string l = 1.15 m. the second ball m2 = 0.71 kg is initially at rest while the baseball has an initial horizontal velocity of v1 = 2.5 m/s. after the collision the first baseball falls straight down (no horizontal velocity.)

randomized variables
m1 = 0.37 kg
m2 = 0.71 kg
l = 1.15 m
v1 = 2.5 m/s

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?