Answer:
Part a)
Part b)
Explanation:
As we know that the energy of capacitor when it is not connected to potential source is given as
As we know that initial energy is given as
now we know that capacitance of parallel plate capacitor is given as
now the new capacitance when distance is changed from 3.80 mm to 1.45 mm
Now the new energy of the capacitor is given as
Part b)
Now if the voltage difference between the plates of capacitor is given constant
now the energy energy of capacitor is
now when capacitance is changed to new value then new energy is given as
Answer:
1 COSMETICS WITH MICROBEADS
2 COFFEE CAPSULES
3 WET WIPES
Explanation:
1.Plastic microbeads began to be introduced in cosmetics, toiletries and cleaning products in the 1970s, but it wasn’t until the 1990s that brands began to incorporate them in a massive way. Toothpastes, creams, lotions, shampoos and detergents began to include microbeads as the great innovation of the time for achieving an abrasive effect, replacing the nature-based materials in use until then.
2 Capsule coffee machines have revolutionized the breakfasts of millions of people, offering a convenient and practical option for preparing an espresso or latte with the same quality one finds in a café. Data from 2017 indicate that 29% of US coffee consumers use these machines, a figure that continues to grow.
3They started off being an invaluable aid for fathers and mothers when facing the messy moment of their baby’s diaper change, but soon they began to be reinvented as deodorants, cleansers, disinfectants and hand soap substitutes, and even as toilet paper for adults. Wet wipes have become a common item in many homes, but with a dramatic consequence: they help to create fatbergs, immense accumulations that block the sewerage networks and that are composed of 93% non-degradable wipes, together with fat, condoms and other similar items thrown into the toilet.
Answer:
Available options are;
A. validity; high
B. variability; low
C. reliability; low
D. reactivity; high
Answer is C. reliability; low
Explanation:
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C. So we can see that the 98 to 106 to 89 degrees shows that the thermometer is not reliable.
Answer:
Planning and performing an experiment to answer the question.
Explanation:
