Questions by David Alpert

Questions by David Alpert

When a race car drives around a circular path, it must accelerate toward the center of the track so it doesn’t hit the outer wall due to what? a. centripetal force b. gravitational force c. friction force

asked Jun 20, 2021

1 answer

4 votes

11.9k views

When Danielle came home from school, she asked her dad to autograph her report card. Danielle’s dad took one look at the report card, smiled, and gladly handed the autographed report card to Danielle.

asked May 25, 2021

2 answers

2 votes

198k views

Segment addition postulate What’s the answer?

asked May 4, 2021

1 answer

4 votes

109k views

At 25 oC, the vapor pressure of water is 23.8 torr and the heat of vaporization is 43.9 kJ/mol. Calculate the vapor pressure of water at 50. oC

asked Apr 22, 2021

1 answer

0 votes

226k views

What is the reciprocal of 1 and 2/3?

asked Mar 25, 2021

1 answer

3 votes

108k views

I need help please I would really appreciate it

asked Mar 1, 2021

1 answer

0 votes

45.9k views

Is -5,-1,1,5 an arithmetic sequence? If it is what are the next three terms

asked Aug 4, 2020

1 answer

2 votes

203k views

This trait of a successful entrepreneur would include being intelligent, compassionate, organized, and fun.

asked May 15, 2020

1 answer

0 votes

149k views

A 2,000 kg car is moving at 15m/s when it collides with a 1200kg car sitting still. Briefly compare the impulse imparted on the 1200kg car by the 2000 kg car to the impulse on the 2000 kg car by the 1200

asked Dec 15, 2019

2 answers

4 votes

245 views

Subtract. 7 3/4 − 3 1/8= (A) 4 7/8 (B) 4 2/4 (C) 4 1/4 (D) 4 5/8

asked Dec 13, 2019

1 answer

3 votes

8.2k views

The modern era came about in part because of which historical event

asked Oct 9, 2019

1 answer

1 vote

172k views

How many Yanomamo men die from violence or warfare? One tenth One fifth One third* One half

asked Sep 20, 2019

1 answer

1 vote

158k views

HELLLLPPPPPPPPP! How did Bob’s murder affect the relationship between the Socs and the Greaser in the book The Outsiders?

asked Aug 21, 2019

1 answer

2 votes

189k views

3. Why is it true that finding a square root is the inverse of squaring?

asked Jan 14, 2019

2 answers

5 votes

33.9k views

heather allen works for the public works department as an electrical inspector. she earns $17.60 per hour for a 36 hour week. Her overtime rate is 1.5 times her regular hourly rate. this week she worked

asked Nov 1, 2018

2 answers

0 votes

222k views

What terrorist group claimed credit for the 9/11 hijackings and attacks? A. ISIS B. Al-Qaeda C. The Taliban D. The IRA

asked Jun 12, 2018

2 answers

2 votes

141k views

True or false: proteins that help to stimulate the cell cycle are coded for my tumour suppressor genes

asked Nov 18, 2017

1 answer

1 vote

77.6k views

What is the value of y?130"Answer:

asked Jun 6, 2017

2 answers

3 votes

185k views

What is the best way to solve this system of equations: 5a+3x=452 a+x=108 Any help is much appreciated!

asked May 3, 2016

1 answer

3 votes

149k views

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