Recent activity by Piotr Kruczek

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In an experiment, a beam of electrons of energy E = 4eV is incident on a barrier of height V0 = 3 eV and width a = 1 nm (nm =nanometer). What fraction of the incident beam will be reflected by this potential

answered Dec 4, 2024

1 answer 141k views

Herman Company received proceeds of ₤188,500 on 10-year, 8% bonds issued on January 1, 2010. The bonds had a face value of ₤200,000, pay interest semi-annually on June 30 and December 31, and have a call

asked Aug 22, 2024

1 answer 57.2k views

Read and choose the correct option to complete the sentence. Tus padres rentaron Ouna llave O una casa de campo O un elevador un servicio de habitación para las vacaciones de familia de este año.

answered Jul 2, 2024

1 answer 119k views

What is the normal speed limit in a school zone when children are present?

answered Jun 28, 2024

1 answer 190k views

Which of the following is correct? A) Most of the ATP are produced by substrate-level phosphorylation. B) Oxidation of FADH2 eventually yields four ATP via oxidative phosphorylation. C) Glycolysis relies

answered May 25, 2024

1 answer 3.2k views

A pre-shared key (PSK) of fewer than _____ characters may be subject to an attack if that key is a common dictionary word. A) 6 B) 8 C) 10 D) 12

answered Apr 20, 2024

1 answer 218k views

What is the ⌊-2.4⌋ Question 2 options: -2 0 -3 -4

answered Apr 10, 2024

1 answer 189k views

What is the essential first step for a coach to help a client with hypertension reach his goals? 1) Assess the client's nutrition and physical-activity behaviors 2) Understand the client's work and home

asked Feb 17, 2024

1 answer 28.3k views

Find a point satisfying the conclusion of the mean value theorem for the function on the interval .

answered Feb 14, 2024

1 answer 97.8k views

Please help 20 points

answered Jan 24, 2024

1 answer 178k views

Which launch angle causes the ball to travel further horizontally before hitting the ground when Liang hits a tennis ball with the same total speed while making angles of 45∘ and 60∘ with the horizontal?

asked Jan 13, 2024

1 answer 15.0k views

A={ 0,1,3,5,6}; B={1,2,3,7} draw the venn diagram of AUB Writ

asked Nov 27, 2023

1 answer 198k views

find the circumference of a circle with radius 2 cm. Dont forget units in your answer. use π=3.14 in your answer

asked Nov 16, 2023

2 answers 232k views

Find X. (this is multiple choice the options are 3, 49, or 27

asked Nov 3, 2023

1 answer 180k views

How did the Bedouins develop military skills

asked Oct 21, 2023

1 answer 94.7k views

8 Compare Baroque music to Classical era music. What is MOST likely to be different between these two types of music? ΟΑ. In Classical era music, emotions were encouraged to be left out of musical compositions,

answered Aug 12, 2023

2 answers 48.3k views

The graphs below are both absolute value functions. The equation of the red graph is f(x) = xl. Which of these is the equation of the blue graph, g(x)? a. g(x)=|x-2| b.g(x)=|x+2| c. g(x)=1/2|x| d. g(x)=2|x

asked Jul 16, 2023

1 answer 214k views

I need help please!!

asked May 18, 2023

1 answer 12.4k views

Restriction enzymes recognize certain dna sequences and some of them will cut straight through, and others will leave an overhang at both ends of the cut. True or false?.

asked Mar 3, 2023

1 answer 40.0k views

A bookstore can purchase several calculators for a total cost of $720. If each calculator cost $1 less, the bookstore could purchase 10 additional calculators at the same total cost. How many calculators

asked Feb 3, 2023

1 answer 165k views

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