subject
Physics, 19.03.2021 20:30 reagan1514

a rectangular solid block of dimensions 20cm by 15cm by 10cm has a cylindrical hole bored through its centre. The mass of the block is now 14.9kg and the material of the block has a density of 5g cm^-3.What is the cross sectional area of the hole in cm^2?​

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 18:20
What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black
Answers: 1
question
Physics, 21.06.2019 21:30
Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.
Answers: 1
question
Physics, 22.06.2019 05:30
Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.
Answers: 3
question
Physics, 22.06.2019 08:00
While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit
Answers: 2
You know the right answer?
a rectangular solid block of dimensions 20cm by 15cm by 10cm has a cylindrical hole bored through it...
Questions
question
Mathematics, 26.03.2021 22:30
question
Mathematics, 26.03.2021 22:30
question
Mathematics, 26.03.2021 22:30
question
Mathematics, 26.03.2021 22:30
Questions on the website: 13722360