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Marina86 [1]
3 years ago
10

Energy is measured in units called

Physics
1 answer:
saul85 [17]3 years ago
4 0
Energy is measured in units called joules.

answer: a. joules.
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Điện tích Q = 8. 10-6C đặt cố định trong
ankoles [38]

Answer:

0.72J

Explanation:

8 0
3 years ago
A cylindrical bucket, open at the top, is 28.0 cm high and 11.0 cm in diameter. A circular hole with a cross-sectional area 1.55
svlad2 [7]

Answer:

so height is 0.1283 m

Explanation:

given data

height = 28 cm

diameter = 11 cm

cross-sectional area = 1.55 cm2

water flow rate  =  2.46×10^−4 m3/s

to find out

How high will the water in the bucket rise

solution

we know that here

potential energy = kinetic energy

mgh = 1/2 mv²

multiply both sides by the 2 and we get

2mgh=mv²

solve it we get

√(2gh) = v    ....................1

h = v²/2g   ...............2

and

flow rate = A V

2.46×10^−4 = V 1.55×10^−4

V = 1.5870 m/s

so from 2

h = v²/2g

h = 1.5870²/ 2(9.81)

h = 0.1283 m

so height is 0.1283 m

6 0
4 years ago
A testing instrument that's used to measure electrical signals in a circuit and display them as waveforms on a screen is called
disa [49]
A testing instrument that's used to measure electrical signals
in a circuit and display them as waveforms on a screen is called
an oscilloscope.

8 0
3 years ago
If the ultimate shear strength of steel is taken to be 3.00 109 Pa, what force is required to punch through a steel plate 1.60 c
photoshop1234 [79]

Answer:

Explanation:

Given

Ultimate shear strength \tau =3\times 10^9\ Pa

thickness of steel Plate t=1.60\ cm

Cross-sectional A=1.20\times 10^2\ cm^2

suppose d is the diameter of cross-section

\frac{\pi }{4}d^2=1.20\times 10^2

d=12.359\ cm

Shear area of circular cross-section

A_s=\pi dt

A_s=\pi \times 12.359\times 1.6

A_s=62.13\ cm^2

Shear Force F_s=A_s\times \tau

F_s=62.13\times 10^2\times 3000

F_s=18.639\ MN  

6 0
3 years ago
2) A molecule of hydrochloric acid HCl contains one atom of hydrogen and *
Dimas [21]

Answer:

3

Explanation:

because I put that it's was right

3 0
3 years ago
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