The two objects perform the same task of measuring time and they are hourglass and sundial.
<h3>
What is an hourglass?</h3>
An hourglass is a device used to measure the passage of time.
The hourglass contains two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance from the upper bulb to the lower one.
<h3>What is a
sundial?</h3>
A sundial is a horological device that is used to measure time of the day when there is sunlight by the apparent position of the Sun in the sky. Unlike hourglass, its doesn't move.
Thus, the two objects perform the same task of measuring time and they are hourglass and sundial.
Learn more about time measurement here: brainly.com/question/13893070
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Correct option B
Transverse waves are those waves whose particles vibrate perpendicular to the direction of wave.
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Efficiency = (output power) / (input power)
= (3,760 joule/sec) / (4,000 joule/sec)
= 3,760 / 4,000 = 0.94 = 94%
Answer:
n = 3.26
Explanation:
given,
human need 380 W of power to walking 5 Km/hr
human body 380 J of energy per second for walking 5 Km/h
speed of human 5 x 0.278 = 1.39 m/s
for walking 1.39 m energy required = 380 J
distance traveled in 3 hours of walking
d = 1.39 x 3 x 3600
d = 15012 m
energy needed
E = 4,104,000 J
now,
one pizza slice give 1260000 J pf energy
slice of pizza
n = 3.26