Will give

a student suspends an object from a spring scale. a spring scale measures the weight of an object. the student records the weight. the student then submerges the object in water and observes that the spring shows a smaller weight than when the object was out of the water. the student then submerges the object in motor oil, vegetable oil, milk, and gasoline and observes the reading on the scale.

the independent variable in this experiment is the:
the weight read on the spring scale
the type of liquid in which the object was submerged
the size of the object
the amount of liquid in which the object was submerged

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy