Add and subtract the values. Express your answer in scientific notation. (8.65 times 10 Superscript negative 3 Baseline) + (2.7 times 10 Superscript negative 4 Baseline) minus (9 times 10 Superscript negative 5)

2.35 times 10 Superscript negative 4
2.67 times 10 Superscript negative 4
8.83 times 10 Superscript negative 3
9.01 times 10 Superscript negative 3

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices