Questions by Dongnhan

Questions by Dongnhan

A table tennis (ping-pong) ball has a mass of about 2.45 g. Suppose the ball is hit across the table with a speed of about 4.0 m/s. What is its kinetic energy? (Ek = 1/2mv²)

asked Aug 22, 2024

1 answer

1 vote

137k views

What is a hair-like structure used for movement?

asked Feb 12, 2024

1 answer

5 votes

69.6k views

5. For the following reaction: I2 (g) + H2 (g)>2HI (g) If the amount consumed from (I2) according to the above reaction is (50.8g) and the actual yield of HI is (40g) then the percentage yield of (HI)

asked Sep 27, 2023

1 answer

25 votes

65.4k views

Which is the answer a b or c.

asked Jun 25, 2023

1 answer

9 votes

35.8k views

Which of the following is not an assumption of stage theories? A. Stages are cultural. B. Stages are genetically predisposed. C. Each stage corresponds to a specific age. D. Each person goes through the

asked Jun 24, 2023

1 answer

16 votes

150k views

34) How much power does it take to do 600 joules of work in 8.0 seconds?a) 75 Wb) 3.6 x 1045 Wc) 600 Wd) 4800 W

asked May 7, 2023

1 answer

0 votes

221k views

A triangle has vertices on a coordinate grid at G(-5, -5), H(8,-5), and I (8,0).. What is the length, in units, of GH?

asked May 4, 2023

1 answer

2 votes

101k views

Which percent of a dollar is a nickel and 6 pennies? A 6% B 11% C 7% D Not here

asked Feb 20, 2023

2 answers

5 votes

38.6k views

Please this is my last problem and all my points just solve this for im begging

asked Dec 12, 2022

1 answer

2 votes

222k views

X/4 = 2 what is the answer to x?

asked Feb 15, 2022

2 answers

2 votes

141k views

Happy House Cleaning Services charges a fee represented by the equation y=10x+20 Interpret the slope, and y-intercept of the linear function for Happy House Cleaning

asked Feb 7, 2022

1 answer

4 votes

157k views

What division sentence means the same as the following subtraction sentences? 12-4=8, 8-4=4,4-4=0

asked Dec 12, 2021

1 answer

3 votes

115k views

Four red candies and three green candies can be combined to make many different flavors. Flavors are different if the percent red is different, so 3 red / 0 green is the same flavor as 2 red / 0 green;

asked Sep 14, 2021

2 answers

2 votes

106k views

(15+23)+7=15+(_______+7)

asked Sep 8, 2021

1 answer

0 votes

9.4k views

Plants that might be called "weeds" are often great pioneer species. What characteristics do they possess that would make them a successful pioneer species?

asked May 16, 2021

1 answer

4 votes

138k views

Topic/ Objective : Characterization How do authors build ___ ?

asked Mar 24, 2021

1 answer

4 votes

206k views

The class has 14 boys, 12 girls, and one teacher. What is the ratio class to girls?

asked Mar 24, 2021

1 answer

5 votes

97.4k views

help me. Question: Triangle HEF is the image of triangle FGH after a 180 degree rotation about point K. Select all statements that must be true.

asked Mar 22, 2021

2 answers

2 votes

222k views

What makes a narrative compelling?

asked Feb 27, 2021

2 answers

1 vote

94.8k views

What is the period of the graphed function? A. π B. 0.75 C. 2 π D. π/2 E. -0.75

asked Nov 12, 2020

1 answer

3 votes

223k views

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