Elston attached a spring scale to a box and pulls in across the floor. he then placed a book and pulls it in the same distance with the same effort. how does the force change after the book is placed in the box a. it will decrease
b. it could increase or decrease depending on the weight of the book.
c. it will increase
d. it could increase or decrease depending on the weight of the box.

Which motion maps show an object in uniform circular motion? check all that apply. v w x y

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.