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Do you have any ideas?
just please help me
But I need to know if you have any ideas on the topic. I need to know what I'm working with.
It would be B
Because kinetic energy relies on the object's velocity (speed) and mass
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
A, because the object isn't moving
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
It would be D, because it has the most mass
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
I would believe it is A, because K = Vm
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
D, because it has reached its peak
Which property of potential energy distinguishes it from kinetic energy? A. mass B. position C. force D. work and power
Its position is stationary
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
It would be A. Once it's released, the energy is released as well
I would go with D The man uses a boulder as a folcrum.
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
I would have to go with B
the 1 about fulcrum was b c and d
just a few more
OK, but it needs to be quick, please
and the last one was a
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.
I believe the best answer is C
hey your back! YaY
just fyi im not leaving the question my wifi keeps timing out so it looks like im gone
but im not
It would be B, the two handles are the two levers, and the two blades are the two wedges.
i think its a
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.
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.
but wouldnt you need more fprce to crack the bigger nut
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
a ramp is a simple machine right
what is a compound machine
A machine that has two or more simple machines involved.
What do you think?
idk my brain is starting to hurt again...
one se my doctor has to give me some medicine
ok im all good now
what do u think it is
I think it is B. You have the crank, which rotates the gear, and turns the the drill.
you see a screw and the end, 1, and the wheel, which is 2. so must be compound
maybe there's more but im bad at identifying those
but it is a compound
It is a compound machine
can u help me with more?
What type of machine is a rake? A. simple machine B. compound machine
I would have to go with A
what kind of machine is a rake anyway
I'm not sure if there is a specific kind for it. I know it scoops the material into its tongs.
i think it would be a lever, the spot where you would hold acts as the fulcrum
And you use it to collect material at the focal point and move it
so a or b
It would be a
what do u think @bethesda
a simple machine
A seesaw uses a level and a fulcrum to work. So it would be a compound machine
The wire cutters uses two wedges and two levers, like the scissors. So it's a compound machine
Definitely a compound machine. No doubt about it
Screw and lever
Well, in this question, you identify two simple machines found in this compound machine
oh yeah was just wondering
No worries ^_^
just a random question... r u good at language arts
will u be on here tomorrow night
I will be on tomorrow morning and afternoon
kk ill come on tomorrow thanks for all your help jack
No problem Barb Have a good night ^_^
u 2 bye