Questions by Josh Santangelo

Questions by Josh Santangelo

A laser pulse of duration 25 ms has a total energy of 1.4 J. The wavelength of this radiation is 567 nm. How many photons are emitted in one pulse? Let 1 eV = 1.60 x 10-19 J, the mass of an electron m=9.

asked Mar 3, 2022

1 answer

5 votes

155k views

Help plzzzzzzzz I really need help here

asked Jan 26, 2022

1 answer

5 votes

226k views

Which property proves the triangles are congruent?

asked Jan 16, 2022

1 answer

9 votes

181k views

une entreprise a dépensé en tout 14 400e en 2001 pour l'entretien de ses voitures a. recopier et compléter le tableau ci-dessous. b. calculer la dépense moyenne pour l'entretien d'une voiture. c. les dépense

asked Dec 27, 2021

1 answer

5 votes

148k views

Find the product of 82,000,000 x 3,000,000,000

asked Aug 21, 2021

1 answer

4 votes

96.5k views

_____ + 5 3/4 = 9 5/8 please help you will get 75 points

asked Aug 4, 2021

2 answers

0 votes

12.4k views

ASAP ASAP ASAP please help me with this

asked Jul 27, 2021

2 answers

5 votes

38.9k views

I’m confused since I’m not sure what to write for the fraction part. 2 3/2 or...? It’s my first time using this app so apologies if the photo is wrong or something.

asked Jun 20, 2021

1 answer

3 votes

83.4k views

The current supplied by a battery as a function of time is I(t) = (0.88 A) e^(-t*6 hr). What is the total number of electrons transported from the positive electrode to the negative electrode from the

asked Feb 28, 2021

1 answer

4 votes

121k views

The Fifth Amendment guarantees that no person can be made to witness against himself in court. This means that a person cannot be forced to speak about or confess to a crime. Which statement best illustrates

asked Jan 11, 2021

1 answer

1 vote

214k views

water goes over Niagara Falls at the rate of 180 million cubic feet every 1/2 hour. how much water goes over the Falls in 1 minute? Answer in proportions

asked Feb 28, 2020

1 answer

5 votes

112k views

What was the name of the first permanent English settlement in The Americas?

asked Jan 11, 2020

1 answer

4 votes

16.4k views

Chlorine and mustard gas is types of poison gas?

asked May 21, 2019

2 answers

0 votes

128k views

What is the difference between monologue and dialogue

asked Nov 10, 2018

2 answers

1 vote

203k views

1) Name the property of real numbers illustrated by the equation. -4(x+4)=-4x-16 A.associative property of addition B.commutative property of addition C.associative property of multiplication D.distributive

asked Apr 14, 2018

1 answer

0 votes

181k views

What happened when Martin Luther King was assassinated in April of 1968?

asked Jan 19, 2018

1 answer

1 vote

205k views

Anyone know numbers 1-13

asked Jan 14, 2018

1 answer

5 votes

135k views

Who makes up the national committee? what is the priority of the national committee?

asked Dec 22, 2017

1 answer

0 votes

229k views

The 'divide and rule' policy employed by the English was developed by the ----. A) French B) Spanish C) Dutch D) Portuguese

asked Dec 18, 2017

2 answers

4 votes

67.7k views

Translate the following into French: 1) I sent it to him. 2) We telephoned them. 3) She gave it to us.

asked Nov 11, 2017

2 answers

0 votes

195k views

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