Questions by Mind Mixer

Questions by Mind Mixer

White light containing wavelengths from 400 nm to 750 nm falls on a grating with 7800 lines/cm. How wide is the first-order spectrum on a screen 2.80m away?

asked Nov 4, 2024

1 answer

4 votes

25.7k views

How many zinc atoms are contained in 7.66x10⁵ mmol of zinc? 4.61 10²⁶Zn atoms 3.24 10²⁶ Zn atoms 1.15 10²⁸ Zn atoms 4.6110²⁹ Zn atoms 786 10²¹ Zn atoms

asked May 16, 2024

1 answer

2 votes

214k views

Cacl₂(s) → ca²⁺ (aq) 2cl⁻(aq) Δh = -81.5 kj/mol a 15.0-g sample of cacl₂ is dissolved in 175.0 g water with both substances at 25.0 °c. calculate the final temperature (in °c) of the solution assuming

asked Mar 25, 2024

1 answer

1 vote

7.0k views

A dragon likes to eat red peppers and green peppers because they help him breathe fire. If the dragon eats 2 red peppers, he can breathe fire that is 25 meters long. If the dragon eats 10 green peppers,

asked Nov 24, 2023

1 answer

0 votes

123k views

How to solve an equation

asked Jun 15, 2023

1 answer

4 votes

161k views

A rectangle is placed around a semicircle as shown below. The length of the rectangle is 3 cm. Find the area if shaded region. Use the value 3.14 for pie, And do not round your answer.

asked Dec 6, 2022

1 answer

5 votes

161k views

Am i right??? this is graded and no links plz!!!!

asked Oct 4, 2022

2 answers

3 votes

208k views

If a retailer has an item that is priced at $3.54 and wants to sell it for 20% less, the markdown will be _____.

asked Jul 2, 2022

2 answers

25 votes

81.1k views

If y + 10 = 25, what is the value of 3(y + 2)?

asked Apr 8, 2022

2 answers

1 vote

59.1k views

Write an essay on the topic of use of modern texhnology in education

asked Mar 5, 2022

1 answer

4 votes

158k views

HELPPP!!!!!!!! What is the value of f(6)

asked Mar 1, 2022

1 answer

1 vote

94.8k views

Makayla has 2 yards of ribbon to use for a craft project she cuts the ribbon into pieces that are 1/4 yard long how many pieces of ribbon does Makayla have

asked Feb 5, 2022

2 answers

4 votes

210k views

1 Can someone plzz help

asked Oct 17, 2021

1 answer

0 votes

118k views

Brown's, a local bakery, is worried about increased costs particularly energy. Last year's records can provide a fairly good estimate of the parameters for this year. Wende Brown, the owner, does

asked Aug 7, 2021

2 answers

0 votes

134k views

A=1/2 BH where A: area, B: base, & H: height. If the Base of a triangle is 7 ft and the Height of the triangle is 4 ft, what is the Area of the triangle? Question 12 options: 56 ft 28 ft 14 ft 37 ft

asked Jul 24, 2021

1 answer

4 votes

111k views

“When the mind returned, which closed itself before the pity of these two kinsfolk, that had all confounded me with sadness, new torments and new tormented souls I see around me wherever I move, and howsoever

asked Apr 8, 2021

2 answers

1 vote

193k views

Sally was working on a team that comprised of colleagues from a different cultural background who value time differently. Sally was consistently frustrated with the way in which the team worked together,

asked Mar 4, 2021

1 answer

5 votes

218k views

I was told to build a castle krazedkitten What material should I use?

asked Mar 2, 2021

2 answers

4 votes

203k views

Does a dog like me? Is scientific or nonscientific

asked Feb 5, 2021

2 answers

2 votes

136k views

An environmental science teacher at a high school with a large population of students wanted to estimate the proportion of students at the school who regularly recycle plastic bottles. The teacher selected

asked Feb 5, 2021

2 answers

0 votes

217k views

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