Question 1
20 pts
one group approached their investigation by dropping a mass so it fell
vertically downward. they planned to measure the position of the mass
as it descended using a motion detector. they checked whether the
motion detector that they were using was sensitive enough to capture
the motion duri
uring the fall, and they were satisfied.
given that they are measuring the motion (position, velocity, and
acceleration) of the mass, the students can only measure gravitational
potential energy and kinetic energy; any other form of energy is
undetectable. if they hope to see that energy is conserved in this system,
which of the following assumptions must be true (or approximately
true)?

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.