anonymous
  • anonymous
The kinetic energy of an object depends on which of the following? A. the object’s mass and direction B. the object’s speed and mass C. the object’s work and direction D. the object’s speed and work
Biology
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@iGreen @JackofallTradez
JackofallTradez
  • JackofallTradez
Do you have any ideas?
anonymous
  • anonymous
just please help me

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JackofallTradez
  • JackofallTradez
But I need to know if you have any ideas on the topic. I need to know what I'm working with.
JackofallTradez
  • JackofallTradez
It would be B
JackofallTradez
  • JackofallTradez
Because kinetic energy relies on the object's velocity (speed) and mass
anonymous
  • anonymous
In the following situations, which one does not have kinetic energy? A. a baseball in a catcher’s glove B. a lady walking slowly across the street C. a hockey puck sliding on the ice D. a man running around a track
JackofallTradez
  • JackofallTradez
A, because the object isn't moving
anonymous
  • anonymous
All of the following objects are moving at the same speed. Which one has the greatest kinetic energy? A. a bicycle B. a motorcycle C. a car D. a semi tractor-trailer truck
JackofallTradez
  • JackofallTradez
It would be D, because it has the most mass
anonymous
  • anonymous
What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s? A. 5.0 J B. 6.5 J C. 10.0 J D. 12.5 J
JackofallTradez
  • JackofallTradez
I would believe it is A, because K = Vm
anonymous
  • anonymous
A ball is thrown straight up in the air. When will its kinetic energy be the least before it is caught? A. at the start of its flight B. halfway to the top of its flight C. at the end of its flight D. at the top of its flight
anonymous
  • anonymous
@JackofallTradez
JackofallTradez
  • JackofallTradez
D, because it has reached its peak
anonymous
  • anonymous
Which property of potential energy distinguishes it from kinetic energy? A. mass B. position C. force D. work and power
JackofallTradez
  • JackofallTradez
B
JackofallTradez
  • JackofallTradez
Its position is stationary
anonymous
  • anonymous
What kind of energy does a rubber band have when it is stretched? A. elastic potential energy B. gravitational potential energy C. kinetic energy D. chemical energy
JackofallTradez
  • JackofallTradez
It would be A. Once it's released, the energy is released as well
anonymous
  • anonymous
@JackofallTradez
JackofallTradez
  • JackofallTradez
I would go with D The man uses a boulder as a folcrum.
anonymous
  • anonymous
If a simple machine reduces the strength of a force, what must be increased? A. the distance that the force moves B. the work the simple machine performs C. the speed of the input force D. the size of the simple machine
JackofallTradez
  • JackofallTradez
I would have to go with B
anonymous
  • anonymous
the 1 about fulcrum was b c and d
anonymous
  • anonymous
just a few more
JackofallTradez
  • JackofallTradez
OK, but it needs to be quick, please
anonymous
  • anonymous
and the last one was a
anonymous
  • anonymous
Which of the following statements describes a compound machine? A. It has movement in only one direction. B. It can only be acted on by one force. C. It is made up of more than one simple machine. D. It makes work more difficult.
JackofallTradez
  • JackofallTradez
I believe the best answer is C
anonymous
  • anonymous
hey your back! YaY
JackofallTradez
  • JackofallTradez
Yep ^_^
anonymous
  • anonymous
anonymous
  • anonymous
just fyi im not leaving the question my wifi keeps timing out so it looks like im gone
anonymous
  • anonymous
but im not
JackofallTradez
  • JackofallTradez
KK
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
It would be B, the two handles are the two levers, and the two blades are the two wedges.
anonymous
  • anonymous
anonymous
  • anonymous
i think its a
JackofallTradez
  • JackofallTradez
Well, it takes more force to crack open the larger nut. And they put it farther away from the pivot point than the smaller nut.
anonymous
  • anonymous
so c
JackofallTradez
  • JackofallTradez
I would have to go with B, because it's comparing cracking the larger nut to cracking the smaller nut. Comparing the change from larger to smaller.
anonymous
  • anonymous
but wouldnt you need more fprce to crack the bigger nut
anonymous
  • anonymous
@JackofallTradez
JackofallTradez
  • JackofallTradez
You do need more force to crack the bigger nut. But the question is asking you to compare the change from cracking the bigger nut to cracking the smaller nut, so it would be B
anonymous
  • anonymous
a ramp is a simple machine right
JackofallTradez
  • JackofallTradez
Yep
anonymous
  • anonymous
what is a compound machine
JackofallTradez
  • JackofallTradez
A machine that has two or more simple machines involved.
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
What do you think?
anonymous
  • anonymous
idk my brain is starting to hurt again...
anonymous
  • anonymous
one se my doctor has to give me some medicine
anonymous
  • anonymous
ok im all good now
anonymous
  • anonymous
what do u think it is
JackofallTradez
  • JackofallTradez
I think it is B. You have the crank, which rotates the gear, and turns the the drill.
anonymous
  • anonymous
you see a screw and the end, 1, and the wheel, which is 2. so must be compound
anonymous
  • anonymous
maybe there's more but im bad at identifying those
anonymous
  • anonymous
but it is a compound
JackofallTradez
  • JackofallTradez
It is a compound machine
anonymous
  • anonymous
thx
anonymous
  • anonymous
can u help me with more?
anonymous
  • anonymous
What type of machine is a rake? A. simple machine B. compound machine
JackofallTradez
  • JackofallTradez
I would have to go with A
anonymous
  • anonymous
what kind of machine is a rake anyway
JackofallTradez
  • JackofallTradez
I'm not sure if there is a specific kind for it. I know it scoops the material into its tongs.
anonymous
  • anonymous
i think it would be a lever, the spot where you would hold acts as the fulcrum
JackofallTradez
  • JackofallTradez
And you use it to collect material at the focal point and move it
anonymous
  • anonymous
so a or b
JackofallTradez
  • JackofallTradez
It would be a
anonymous
  • anonymous
what do u think @bethesda
anonymous
  • anonymous
a simple machine
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
A seesaw uses a level and a fulcrum to work. So it would be a compound machine
JackofallTradez
  • JackofallTradez
lever*
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
The wire cutters uses two wedges and two levers, like the scissors. So it's a compound machine
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
Definitely a compound machine. No doubt about it
anonymous
  • anonymous
JackofallTradez
  • JackofallTradez
Screw and lever
anonymous
  • anonymous
so compound
JackofallTradez
  • JackofallTradez
Well, in this question, you identify two simple machines found in this compound machine
anonymous
  • anonymous
oh yeah was just wondering
JackofallTradez
  • JackofallTradez
No worries ^_^
anonymous
  • anonymous
just a random question... r u good at language arts
anonymous
  • anonymous
@JackofallTradez
JackofallTradez
  • JackofallTradez
Pretty decent
anonymous
  • anonymous
will u be on here tomorrow night
JackofallTradez
  • JackofallTradez
Maybe
JackofallTradez
  • JackofallTradez
I will be on tomorrow morning and afternoon
anonymous
  • anonymous
kk ill come on tomorrow thanks for all your help jack
JackofallTradez
  • JackofallTradez
No problem Barb Have a good night ^_^
anonymous
  • anonymous
u 2 bye
JackofallTradez
  • JackofallTradez
Bye!

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