Questions by John DeBord

Questions by John DeBord

What is the upper limit of z for an element to be a naturally occurring radioisotope I think it's 88?

asked May 18, 2018

2 answers

4 votes

82.3k views

How the formation of sea ice affects the salinity of ocean water?

asked Mar 18, 2018

1 answer

1 vote

167k views

Take 4a - 3b + 2c from 2a - 3b + 4c. a)-2a + 2c b)-2a - 2c c)2a + 2c d)2a - 2c ...?

asked Nov 26, 2017

2 answers

3 votes

210k views

Which term refers to an energy supply that is finite, like coal or oil?

asked Oct 1, 2017

1 answer

2 votes

89.5k views

A roller coaster car has a mass of 290. kilograms. Starting from rest, the car acquires 3.13 × 10^5 joules of kinetic energy as it descends to the bottom of a hill in 5.3 seconds. Calculate the magnitude

asked Mar 25, 2016

2 answers

1 vote

142k views

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