Therefore, they<br> experience a<br> and produce<br> surface tension.

Which balloon would fall faster, water filled or murcury filled?

bazaltina [42]

A mercury filled balloon would fall faster then water. Mercury is heavier.

7 0

3 years ago

Which of the following means that an image is real?

DochEvi [55]

To declare an image is real you would call it “authentic”

8 0

3 years ago

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Cavity wall insulation costs £240 but will save you £32 each year. What is the payback time for cavity

likoan [24]

Answer:

Thus, the payback time for cavity wall insulation is 7.5 years

5 0

2 years ago

Which shows the formula for converting from kelvins to degrees Celsius? °C = (9/5 × K) +32 °C = 5/9 × (K – 32) °C = K – 273 °C =

madam [21]

The freezing point of the water is 0 C , and it equals to 273 K

Then, To convert from Kelvins degrees to Celsius degrees we use the relation

$K = C + 273$

Also,

$C = K - 273$

5 0

3 years ago

Read 2 more answers

A 5.30kg block hangs from a spring with a spring constant 1700 N/m. The block is pulled down 4.50cm from the equilibrium positio

Andru [333]

To solve this problem it is necessary to apply the concepts related to the frequency in a spring, the conservation of energy and the total mechanical energy in the body (kinetic or potential as the case may be)

PART A) By definition the frequency in a spring is given by the equation

$f = \frac{1}{2\pi} \sqrt{\frac{k}{m}}$

Where,

m = mass

k = spring constant

Our values are,

k=1700N/m

m=5.3 kg

Replacing,

$f = \frac{1}{2\pi} \sqrt{\frac{1700}{5.3}}$

$f=2.85 Hz$

PART B) To solve this section it is necessary to apply the concepts related to the conservation of energy both potential (simple harmonic) and kinetic in the spring.

$\frac{1}{2}kA^2 = \frac{1}{2}mv^2 + \frac{1}{2} kY^2$