subject
Physics, 28.03.2021 18:50 carryislarrywithdair

5. You observe that a chunk of tar sinks in puddles of rainwater but floats on the ocean.
An experiment to explain the behavior of the
tar should measure
A the difference between atmospheric
pressure and water pressure.
B the densities of fresh water, salt water,
and tar.
C the height from which the chunk of
tar is dropped.
D the depth of each type of water.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 21:20
Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market
Answers: 3
question
Physics, 22.06.2019 05:00
Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?
Answers: 1
question
Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
Answers: 1
question
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
You know the right answer?
5. You observe that a chunk of tar sinks in puddles of rainwater but floats on the ocean.
An...
Questions
question
Mathematics, 09.06.2021 09:20
question
English, 09.06.2021 09:20
question
Mathematics, 09.06.2021 09:20
question
Chemistry, 09.06.2021 09:20
Questions on the website: 13722363