V. Answer the following questions.
A metal block weighs 500 gf in air and 460 gf when completely immersed
water. Calculate the upthrust on the block.
Give reasons for the following:
(1) Cutting is easier with sharp tools.
(ii) Sometimes, people bleed from nose while climbing uphill rapidly.
(iii) A body weighs less inside water.
(iv) A balloon filled with hydrogen rises up only to a certain height.
Answers: 2
Physics, 21.06.2019 23:30
Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)
Answers: 2
Physics, 22.06.2019 03:30
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
Physics, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
Answers: 2
Physics, 22.06.2019 10:00
Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer
Answers: 2
V. Answer the following questions.
A metal block weighs 500 gf in air and 460 gf when completely im...
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English, 04.04.2020 17:41
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