If a machine could be made that had 100% mechanical efficiency, it would be called an _____________________________.

Answers

Answer 1

Answer: It would OUTPUT exactly enough energy to pour back into its INPUT and
keep itself running. It would be called an "Perpetual Motion" machine.

It would be completely useless, however, as anything but a curiosity
to be stared at. If you ever tried to make it actually DO anything besides
keep itself running, it would run down and stop, because you had taken
energy out of it.

What you need in order to turn the world upside down is a machine that
has 101% mechanical efficiency ... enough energy coming out of it to
keep itself running AND have a little bit left over, that you can take and
do other things with.

Such a machine would need to create energy inside itself, which
everybody knows is not possible.

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1 . If the gravity increases what will happen to potential energy?a. Increase
b. Decrease
c. Remain the same

2 . If the mass of an object increases how will kinetic energy be effected ?
a. Increase
b. Decrease
c. Remain the same

3 . Two objects have the same mass; object A has a greater acceleration then B. Which Option will have Greater force?
a. Object A
b. Object B
c. Both the same

4 . The total amount of energy in a closed system remains______.

a. Will Increase
b. Will Decrease
c. Remain The same

PLEASE GIVE REAL CLEAR ANSWERS. Thank You

Answers

number oneB two a three c four c

Which type of energy increases when an object’s atoms move faster? A.nuclear B.mechanical C.chemical D.thermal

Answers

Answer: The correct option is D.

Explanation:

Thermal energy is the internal energy of the object due to the motion of the particles.

The kinetic energy is due to the motion of the particles. If the system has kinetic energy then it will have thermal energy.

When the object's atoms move faster then the thermal energy increases.

Therefore, the correct answer is thermal energy.

When an object's atoms move faster, its thermal energy increases and the object becomes warmer.

Which could be the factor that remains at the same phases of an experiment?A: observations
B:science
C: scientific methods
D: technology
E: controlled variables

Answers

Controlled variables are the factor that remains at the same phases of an experiment.

What is controlled variable?

Anything kept constant or constrained in a research study is referred to as a control variable. Despite not being relevant to the study's objectives, this variable is controlled because it might have an impact on the results.

Variables can be controlled either directly by maintaining their value throughout a study (for example, by maintaining a constant room temperature in an experiment) or indirectly by using techniques like randomization or statistical control (e.g., to account for participant characteristics like age in statistical tests).

Hence, controlled variables are that variables which are kept at the same phases of an experiment.

To learn more about controlled experiment, refer the link:

brainly.com/question/1537888

#SPJ6

the controlled varaibles aka E. because the control group is Group of subjects in the experiment that experimental group as compared to

What is the difference between a radio telescope, x-ray telescope, and optical telescope (both reflecting and refracting)

Answers

They all see different types of wavelengths

x-rays are similar to gamma rays
telescope uses glass.

Help on Making an Egg capsule that survives a about 100 feet launch from catapult. You can only use one plastic bag, one Styrofoam cup, one ziplock bag, 7 popsicle sticks, 7 cotton balls, 9 packing peanuts, 9 straws, 9 yards of string, 1 yard of string, 1 egg and 1 yard of tape. And no, you can't hard boil the egg. Any ideas or pictures?

Answers

Well, surround the inner walls of the styrofoam cup with the popsicle sticks, stuff 4 cotton balls at the bottom of the cup for protection and cushioning, put the egg inside, stuff the remaining three cotton balls on the top of the egg, (you should be closing the cup with the cotton balls; like a cotton ball lid), THEN make a sealed lid with the tape over the top of the cotton balls to make a tape lid for thee cup, AFTER that, put as much peanuts as you can at the bottom of the cup and around the bottom rim of it, THEN make a little raft from the straws, (EXACTLY like how it's shown in the picture below), and hot glue or tape that to the peanuts, then put that cup into the ziplock bag.
Ask if you could use a tiny square of fabric, (so you could make a parachute and tie string to the fabric at the borders/corners of the bag), but if you can't....
Then instead wrap the bag with string, and be sure that there is a THICK layer covering the ENTIRE bag. ;-)
I hope I helped! =D

i would but the cotton balls, packing peanuts and egg in the cup. then i would make a small box out of the popsicle sticks around the cup, by warping the sticks with your string. the tape it shut with the cup in the box

How do contact forces such as friction differ from gravitational and magnetic forces?

Answers

"Contact" means "touching". A contact force can't act on an object unless
they're touching. Friction is a contact force.

Gravitational forces pull masses together even if they're not touching.
Magnetic forces pull a piece of iron toward a magnet even if they're not touching.

Gravitational and magnetic forces are "non-contact" forces.

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