In a laboratory experiment, students use the setup shown in the image. They attach a string to the car and run it over a pulley, and at the other end of the string, there is a small hanger with a
weight. This weight is never changed in the
experiment. The students conduct 3 trials by
releasing the car and letting the force from
the weight pull the car across the table as
they measure velocity and acceleration. For
the second trial, weights are added to the
car before the experiment is run. For the
third trial, even more weight is added to the
car before the experiment is run. Using
Newton's Second Law, compare and contrast
force, mass, and acceleration of the toy car
for each of the three trials.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give