What is the decay constant

Reference no: EM13190354

After 10 hours of radiation decay 50mg of a substance remains. After 15 hours 30mg remained.

(a) What is the decay constant?

(b) How much of the substance was initially present?

Reference no: EM13190354

Questions Cloud

Explain principal industrial source of aluminum metal : which is mostly Al2O3, is the principal industrial source of aluminum metal. How much aluminum can be produced from 4.50 ton of Al2O3

What is the volume of the brine in the tank at the time t : A tank initially contains 10 gallons of brine in which 3 pounds of salt are dissolved. A brine containing 2 lb/gal of salt runs into the tank at the rate of 2 gal/min. The mixture is well stirred and ows out of the tank at the rate of 1 gal/min.

Determine the salary for continue the interviewing process : BK Books is an online book retailer that also has 10,000 "bricks and mortar" outlets worldwide. You are a risk-neutral manager within the Corporate Finance Division and are in dire need of a new financial analyst. You only interview students from ..

Smokers vs nonsmokers : Write a interoffice memo to all department managers of Foods, a large food products company. Announce the new rstriction, and tell the managers that you want to set up departmental committees to mediate any smoking conflicts before complanits surfact..

What is the decay constant : After 10 hours of radiation decay 50mg of a substance remains. After 15 hours 30mg remained.

The minimum frequency of light needed to eject electrons : The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ?0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.73 × 10^14 s-1.

Calculate and analyze smm companys ratios : Fixed Assets Property, plant, and equipment $2,200 $1,870 $1,814 $1,422 $1,400 Less: Accumulated depreciation $400 $200 $180 $80 $75 Net property, plant, and equipment $1,800 $1,670 $1,634 $1,342 $1,325 Intangible assets $300 $240 $220 $210 $205

Losing market share in e-book retailing : Do you think Amazon should be concerned about losing market share in e-book retailing and what are the implications for its pricing decisions?

Compound is allowed to burn in the presence of oxygen : allowed to burn in the presence of 16.00 g of oxygen. How much (in grams) CH4, O2, CO2, and H2O remain after the reaction is complete?

User Account

All Pages