Questions by Lupe

Questions by Lupe

A source of light is placed above a sphere of radius 10cm. How many photoelectrons must be emitted by the sphere before emission of photoelectrons stop? The energy of incident photon is 4.2eV and the work

asked Oct 9, 2024

1 answer

4 votes

128k views

A 14 ft tall fence casts a 40 ft shadow. If a cardboard box casts a 70 ft shadow, how tall is it? a) 25 ft b) 49 ft c) 140 ft d) 70 ft

asked Mar 5, 2024

1 answer

0 votes

175k views

The form of a trait that, if present, is always expressed is called what?

asked Aug 20, 2023

1 answer

2 votes

135k views

When contrasted with a person born in a developed nation, an in- dividual born in a developing nation can be expected to (a) have a better diet (b) live longer (c) have poorer health (d) have greater educational

asked Feb 23, 2023

1 answer

2 votes

91.5k views

Number 10 Find the limit Use the x values: -0.03, -0.02, -0.01, 0, 0.01, 0.02, 0.03

asked Jan 19, 2023

1 answer

4 votes

229k views

Who holds the second largest groundhog day celebration.

asked Jan 16, 2023

1 answer

24 votes

97.3k views

Write in standard form (×-3)(x+2)(x-5)

asked Aug 23, 2022

2 answers

1 vote

93.1k views

Simplify: -4r + s - 2r - 3s

asked Apr 12, 2022

2 answers

2 votes

45.8k views

A scientist adds 5 mcg of the mineral cadmium to the daily diet of 100 4-week-old laboratory mice. After twelve weeks, the researcher weighs and takes blood samples from each mouse. According to her findings,

asked Apr 6, 2022

1 answer

2 votes

152k views

Find the slope of the line that passes through the given two points. (-4,-2) and (-6,-1) m = Please help I don’t understand

asked Oct 21, 2021

2 answers

2 votes

170k views

Red-green color blindness is a human X-linked recessive disorder. A young man with a 47,XXY karyotype (klinefelter syndrome) is color blind. His 46,XY brother also is color blind. Both parents have normal

asked Sep 25, 2021

2 answers

5 votes

94.5k views

Which of the following defines the wavelength of a wave? a. the height of a wave between peak and trough b. the loudness of waves that travel through the air c. the speed that a wave is passed from particle

asked Sep 17, 2021

2 answers

3 votes

108k views

ANSWER FAST PLS: What are Egypt's 5 traits of civilization? Give examples and explanations.

asked Aug 26, 2021

1 answer

0 votes

57.7k views

Not sure how to work this

asked Aug 21, 2021

1 answer

4 votes

203k views

The graph shows the solution to a system of inequalties Which of the following inequalities is modeled by the graph? A. x+ 4y >= 15; y>= 0 B. x- 4y>= 15; y >= 0 C. x+ 4y<= 15; y>= 0 D. -x-4y >= 15; y >=0

asked Aug 15, 2021

1 answer

1 vote

27.0k views

Explain precisely why ‘Opportunity Cost' is always a RELATIVE concept and is never to be construed in ABSOLUTE terms. In addition, why is the PPF function never strictly convex -what is the economic implication

asked Aug 1, 2021

1 answer

1 vote

103k views

Identify each statement as true or false. The word “federal” is the same as the word “national.” The Federalists believed no army was necessary in times of peace. The Federalists believed that a strong

asked Jun 24, 2021

2 answers

2 votes

202k views

Macee Department Store has three departments, and it conducts advertising campaigns that benefit all departments. Advertising costs are $100,000 this year, and departmental sales for this year follow.

asked Jun 12, 2021

1 answer

1 vote

214k views

As a student, how important is having effective communication skills?

asked Jan 10, 2021

1 answer

5 votes

145k views

A cold drink is taken from a cooler. Initially, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has increased to 10°C. (a) What is the temperature of the drink after 45 minutes?

asked Sep 21, 2020

1 answer

3 votes

152k views

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