Questions by Jun HU

Questions by Jun HU

Briefly describe this setting in your own words

asked Oct 26, 2021

1 answer

3 votes

25.2k views

A solar flare is a very high energy event on the surface of the sun. Which wavelength is best to observe such an event? - visible light -microwaves -xray -infrared

asked May 15, 2021

1 answer

1 vote

70.8k views

Please help with this question ASAP! You are studying for the SAT and start the first week spending 2 hours studying. You plan to increase the amount you study by 10% each week. How many hours do you study

asked May 9, 2021

1 answer

1 vote

212k views

The sets E and A are given below. E={-2,3,8) A = {0,6,8) Find the intersection of E and A. Find the union of E and A. Write your answers using set notation in roster form).

asked Apr 9, 2021

1 answer

4 votes

99.2k views

What is the name of the process that develops reproductive cells in males?

asked Mar 10, 2021

1 answer

5 votes

106k views

Find the value of k so that the point A lies on the line given by equation. A(2, 2), kx+(k+1)y=2

asked Mar 4, 2021

2 answers

3 votes

133k views

A video game includes an asteroid that is programmed to move in a straight line across a 17-inch monitor according to the equation x=6.5t−2.3 t 3 x=6.5t−2.3t3 , where x is in inches and t is in seconds.

asked Feb 6, 2021

1 answer

0 votes

126k views

Compute the payback period for each of these two separate investments: (a) A new operating system for an existing machine is expected to cost $260,000 and have a useful life of four years. The system yields

asked May 13, 2020

1 answer

0 votes

139k views

Suppose that a car performs a uniform acceleration of 0.42 m/s from rest to 30.0 km/h in the first stage of its motion (From point A to point B). Then it moves at constant speed for half a minute (From

asked Jan 2, 2020

1 answer

0 votes

67.6k views

In a closed system, _____ energy is equal to potential energy plus kinetic energy.

asked Dec 8, 2019

2 answers

4 votes

13.8k views

The frequency of a given region of the electromagnetic spectrum ranges from 4 × 1014 to 7.5 × 1014 Hz. The speed of light is 2.998 × 108 m/s. Which waves are found in this region? A. microwaves B. infrared

asked May 14, 2019

2 answers

2 votes

138k views

Find the value of x.

asked May 12, 2019

2 answers

5 votes

78.8k views

Lucy told jim her house is for sale for $252,000. jim told lucy he is very interested but wanted his wife to see it first. that evening, jim's wife drives by the home. she calls jim and says she loves

asked Feb 15, 2019

1 answer

4 votes

105k views

How does free housing reduce poverty

asked Nov 21, 2018

2 answers

1 vote

115k views

What is the best sequence for this set of sentences? 1. A monstrous dog emerged from the bushes lining the fence. 2. From the living room, he heard a rustling sound in the shrubbery beyond the fence. 3.

asked Jun 4, 2018

2 answers

3 votes

112k views

What are the three Jewish diasporas and when did they happen?

asked May 2, 2018

2 answers

5 votes

211k views

Show that 6x^2+17x-39=0

asked Apr 19, 2017

1 answer

5 votes

175k views

Whats 36 divided by 540

asked Jul 22, 2015

2 answers

3 votes

80.9k views

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