Help!!

This page lists questions and answers that were posted by visitors named Help!!.

Questions

The following questions were asked by visitors named Help!!.

On th decibel scale, the loudness of a sound, in decibels, is given by D=10log(I/I0), where I is the intensity of a sound barely audible to the human ear. If the intensity of a sound is 10^11I0, what is the loudness in decibels? (please note the I0 is sup...

15 years ago

The antacid Amphogel contains aluminum hydroxide Al(OH}3 How many milliliters of 2.00(M}HCl are required to react with 80.0 mL of 1.48 (M} Al(OH)3(s)? Al(OH)3(s)+ 3HCl(aq)to AlCl3(aq) + 3H2O(aq)

14 years ago

Strontium-85, used for bone scans, has a half-life of 64 {\rm d}.How long will it take for the radiation level of strontium-85 to drop to \frac{1}{8} of its original level?

14 years ago

The recommended dosage of iodine-131 is 4.20 \mu{\rm Ci/kg} of body weight. How many microcuries of iodine-131 are needed for a 84.0 {\rm kg} patient with hyperthyroidism?

14 years ago

Imagine that you are a prehistoric artist and write a 350 to 500 word story explaining why you are an artist and what the purpose of your art is. Be clear about what time period and location you are from. You may do research about prehistoric art, but be...

13 years ago

Oxygen (O2) has a molar mass of 32 g/mol. (e) Suppose an oxygen molecule traveling at this speed bounces back and forth between opposite sides of a cubical vessel 0.10 m on a side. Find the average force it exerts on one of the walls of the container. (As...

12 years ago

take the limit as x goes to infinity: (14x/(14x+3))^(4x)

12 years ago

For the theoretically perfect reaction 2H² +O²---2H²O if you react 300 molecules pf hydrogen and 200 molecules of oxygen, how many oxygen molecules will you have that do not engage in the reaction? Answer 50, 100, 150, or 200?

12 years ago

If you have 1 mole of baking soda (NaHCO³), then about how many atoms of oxygen do you have?

12 years ago

What is the molar volume of the gas ammonia (NH³) at STP?

12 years ago

What volume does 0.25 moles of oxygen gas occupy ar STP?

12 years ago

We release an oil drop of radius r in air. The density of the oil is 640 kg/m3. C1 and C2 for 1 atmosphere air at 20∘ C are 3.90 × 10−4 (kg/m)/sec and 0.73 kg/m3, respectively. How small should the oil drop be so that the drag force is dominated by the li...

12 years ago

1.Select the community activity that is a healthy choice to promote fitness for all ages A.annual 5K fun run for charity<--- B.annual state fair C.monthly movie in the park D.monthly laser light show at the planetarium 2.Mollie is well respected by her te...

11 years ago

An observer at the top of a lighthouse 55m Hugh sights a ship at a sea angle of depression of 18°. If the foot of the lighthouse is at sea level how far is the ship from the foot of the light house

10 years ago

How can I determine the concentration of HCl remaining in the flask after back titration? Thank you!! I have been given weight of antacid, concentration and volume of HCl and concentration of NaOH. I've done 3 trials and found the average volume of NaOH.

10 years ago

Sorry if I confused you. I miss-wrote my question. My question was: How can I determine the concentration of HCl remaining in the flask. I calculated the # of moles of HCl neutralized by the tablet which was around 0.014 M. I don't understand the steps ne...

10 years ago

Prove that a line that divides two sides of a triangle proportionally is parallel to the third side. Be sure to create a name the appropriate geometric figures. Paul walks 25 feet away from his house and places a mirror on the ground. He backs 5 feet away...

9 years ago

In Great Expectation, How did Mrs. Havisham past relationship affect the way she lived? How did her past effect the way she raised Estella

8 years ago

Identify the adverb in this sentence. The brightly colored suit he wore made him stand out in the crowd. Please help Ms.Sue!!!

8 years ago

The reaction of sodium oxide with water would form: 1. a neutral solution. 2. a basic solution. 3. an acidic solution. An explanation would be appreciated too!!

7 years ago

Is "Harshly gnawing at my ankle were over 200 fire ants." a complete sentence?

7 years ago

why was clark's victory at fort sackville important to westward expansion? -It gave Americans access to the land east of the Appalachian Mountains. -It resulted in a victory that forced Great Britain to allow the colonies to become a new country. -It help...

6 years ago

Hello! I am struggling with this quick check, it is currently an overdue lesson and I really need help.. I couldn't find none of the answers to the questions after I looked in the lesson more then 3 times! Anyways, here are the questions- 1. In the case U...

5 years ago

How are transformations of a linear function and an absolute value function similar? Provide two examples/ reasons. I know the differences but I have no Idea what they have in similar plz help!

4 years ago

Can someone make a 5 paragraph essay on why cats are better than dogs?? Help!!! plsplsplspls 🙏🙏🙏🙏🥺🥺

2 years ago

Answers

The following answers were posted by visitors named Help!!.

well you don't have to be rude!

14 years ago

What happened between -4 x log[1 + 3/(14 x)] = and -4 x [3/(14 x) + O(1/x^2)] = How did you get rid of the log? Thx in advance

12 years ago

how is it 200, 300 when it says it is 100 less than twice the preceding number... isnt it 200-100=100x2==200 again? im confused

12 years ago

10 years ago

Can someone please help me!!???????????

CAN SOMEONE TELL THE ANSWERS HERE?

5 years ago

Is xD right??

4 years ago

pls dont post awnsers that not what this site os for

4 years ago

Does anyone know? :C

4 years ago

In North Africa, the _______________________ is highest along __________________________and ____________________. South of __________, large __________________reside in areas ___________________ because the _______________________________ are poor. what a...

3 years ago