Physics, 01.11.2019 07:31 pippyysanchezz
Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock. by measuring the amount of its decay product (argon-40) present in the rock, you realize that there must have been 40 grams of potassium-40 when the rock solidified. how old is the rock? a) 1.3 billion years b) 2.6 billion years c) 3.9 billion years d) 5.2 billion years e) none of the above
Answers: 2
Physics, 22.06.2019 04:30
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 11:30
Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above
Answers: 1
Physics, 22.06.2019 18:00
Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?
Answers: 3
Physics, 22.06.2019 22:00
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
Answers: 2
Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measur...
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