A manipulated variable is the independent variable in an experiment. It’s called “manipulated” because it’s the one you can change. In other words, you can decide ahead of time to increase it or decrease it. In an experiment you should only have one manipulated variable at a time. The manipulated variable is the independent variable in an experiment.
Answer:
ഹലോ എങ്ങനെയുണ്ട് ക്ഷമിക്കണം എനിക്ക് ഉത്തരം അറിയില്ല
The currency for performing work is called : Energy
And Energy's unit of measurement is : Joule
The amount of energy you've inputed will always equal the output.
For example, in order to do a 500 joules of work, you need 500 joules of energy
Answer:
A). Since No friction is present...
All Gravitational potential Energy is converted to Kinetic
Using g=10ms-²
1/2mv²=mgh
1/2v²=gh
v²=2gh
v=√2gh
v√2(10)(2.1)
v=6.48ms-¹
B). 250J is lost....
The Energy on the Body =Total Energy – Lost Energy
Mgh - 250
380(10)(2.1) - 250
=548J
548J is the energy that would be transferred into speeding up the Child... The 250 is lost to other factors
PE Energy=1/2mv²
v²= 2PE/m
v=√2 x 548/(38)
v=√28.84
v=5.37ms-¹
