Recent activity by David Ackerman

Question

A sample of U-235 has a half-life of 700 million years. What fraction of the parent material will remain after 2800 million years? a. 1/2 b. 1/4 c. 1/8 d. 1/16 e. 1/32

asked Dec 26, 2024

1 answer 99.7k views

what characteristics do substances often have that make them attractive as a poison when someone wants to intentionally harm another person?

answered Dec 25, 2024

1 answer 44.6k views

The conjugate of the complex no. i+3 is

answered Dec 24, 2024

1 answer 130k views

What is the square root of 40 between two positive consecutive integers? A) Between 6 and 7 B) Between 5 and 6 C) Between 7 and 8 D) Between 8 and 9

asked Dec 5, 2024

2 answers 72.4k views

Help pls! The rhinophore is A. species of rudibrnach B. a specialized set of tentacles C. A gill for respiration D. Defisive sting structure E. All above, depending on the species

answered Nov 12, 2024

1 answer 223k views

Which two equations would be most appropriately solved by using the zero-product property? Select each correct answer. (x+4)(x−12)=0 left parenthesis x plus 4 right parenthesis left parenthesis x minus

answered Oct 6, 2024

1 answer 143k views

Which term is largely defined by feelings of intense patriotism? Militarism; Alliances; Imperialism; Nationalism.

asked Sep 21, 2024

1 answer 44.2k views

According to the Muslim faith, in about the year 610, the angel Gabriel visited Muhammad. He told Muhammad that he was a prophet of God, or "Allah" in Arabic. Muhammad told people in his hometown, Mecca

answered Aug 29, 2024

1 answer 86.4k views

Early intervention differs in several ways from services for older preschoolers:

answered Aug 12, 2024

1 answer 3.3k views

Write a summary on Atoms and molecules

asked Aug 10, 2024

1 answer 98.2k views

The Dietary Reference Intakes refer to _______________. 1) A recommend nutrient intake level that appears to be sufficient for good health 2) The level of intake of a nutrient that is adequate to meet

answered Jul 11, 2024

1 answer 69.4k views

Do you enjoy going on long road trips as the driver? As the passenger?

answered Mar 9, 2024

1 answer 178k views

together 3 students pull to the left on a rope with 50 n of force each. at the same time 2 students pull to the right on the rope with 75 n of force each. will it move to the left, right, or not at all?

answered Feb 10, 2024

1 answer 177k views

Which of the following is an acceptable method for calculating a deduction for auto expenses for business purposes? 1) Actual expenses method 2) Standard mileage rate method 3) Both A and B 4) None of

asked Feb 6, 2024

1 answer 124k views

The _____ controls balance and equilibrium. a) vestibule and semicircular canals b) cochlea c) tympanic membrane d) ossicles

answered Jan 28, 2024

1 answer 160k views

Jannat thinks of a number, f. She rounds f to 1 d.p. She then rounds the result to the nearest integer. Her final number is 27. What is the smallest value that f could have?

asked Jan 20, 2024

1 answer 230k views

What is the equation of the circle whose diameter has endpoints (9,1) and (9,15)

asked Nov 20, 2023

1 answer 165k views

This is for one hundred points upload your presentation about the stem field containing the following: a title career inventory results from the career interest inventory you took in the lesson. be sure

asked Sep 24, 2023

1 answer 212k views

Use the number line to find the coordinate of the midpoint of ¯¯¯¯¯¯¯ M P .

answered Aug 13, 2023

1 answer 105k views

The average speed of a runner in a 352. meter race is 8.0 meters per second. How long did it take the runner to complete the race?

asked Jul 8, 2023

2 answers 83.3k views

Ask a Question