Questions by Vinh

Questions by Vinh

Which of the following is a definite indicator of a chemical change?

asked Jul 9, 2021

1 answer

2 votes

171k views

Brett is a manager at a small publishing firm. He supervises the work of 30 employees. He is friendly to every employee. He strives to promote a favorable work environment where everyone feels comfortable.

asked Jul 6, 2021

1 answer

5 votes

74.7k views

A car is moving at a velocity of 25 ms-1. It accelerates at a rate of 6 ms-2. Find its velocity after 3 seconds

asked Mar 23, 2021

1 answer

4 votes

187k views

A citizen of York purchased a truck in 20X3 for $50,000. On June 10, 20X9, she donated the truck to York. The fair value of the truck on the date of donation was $30,000. How should York report the truck

asked Mar 18, 2021

2 answers

2 votes

93.6k views

An anglerfish possesses a luminescent lure close to its mouth to attract prey. This is an example of what type of predator behavior?

asked Jan 16, 2021

1 answer

3 votes

141k views

Using a formula estimate the body surface area of a person whose height is 150 cm and who weighs 80 kg. A. 1.55 m2 B. 1.83 m2 C. 0.47 m2 D. 0.45 m2

asked Oct 23, 2020

1 answer

1 vote

29.0k views

Five men and 5 women are ranked according to their scores on an examination. Assume that no two scores are alike and all 10! possible rankings are equally likely. Let X X denote the highest ranking achieved

asked Oct 18, 2020

1 answer

4 votes

16.7k views

How much energy would it take to raise the temperature of 20 g of water 5 K? The specific heat of water is 4.18 J/g*K.

asked Mar 16, 2020

1 answer

0 votes

234k views

Electrons are ejected from a metallic surface with speeds ranging up to 4.9 105 m/s when light with a wavelength of λ = 625 nm is used. (a) what is the work function of the surface?

asked Jul 6, 2019

1 answer

1 vote

64.2k views

Which is an example of the conversion of gravitational potential energy into kinetic energy?

asked Jun 16, 2019

2 answers

4 votes

3.6k views

In ptolemy's earth-centered model for the solar system, venus's phase is never full as viewed from earth because it always lies between earth and the sun. in reality, as galileo first recognized, venus

asked May 12, 2019

1 answer

4 votes

84.0k views

I got the wrong answer, does anyone know what the right answer is? A. The distance between two points B. The horizontal change compared to the vertical change between two points C. the ratio of the change

asked Mar 16, 2019

1 answer

1 vote

86.6k views

Which expression is equivalent to 10x^6y^12/-5x^-2y^-6? Assume .x=0.y=0.

asked Jan 7, 2019

2 answers

4 votes

114k views

Which statement is directed at readers who disagree with the author's ideas about nature? A. With the renewal of plant life will come the insects, the birds, the lizards and snakes, the mammals. B. Indeed

asked Nov 4, 2018

2 answers

2 votes

18.7k views

Help with Algebra Questions 1. Write a quadratic equation that can be solved by factoring. Solve your equation and show and explain all your work. 2.How do you determine which method to use when you’re

asked Mar 19, 2018

1 answer

0 votes

80.7k views

Evaluate the expression when x = –24. a. –6 b. –2 c. 2 d. 6

asked Jun 23, 2017

1 answer

1 vote

174k views

Which amendment was introduced to prevent anyone from assuming that the rights enumerated in the Bill of Rights are the only protected rights

asked Feb 18, 2017

2 answers

1 vote

156k views

At the start of the Revolutionary War, approximately how many Americans were in favor of independence from Great Britain? a. one third b. one half c. two thirds d. three fourths

asked Jan 17, 2017

1 answer

4 votes

27.1k views

What important anthropological discovery was made in the Great Rift Valley?

asked Sep 10, 2016

1 answer

2 votes

176k views

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