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What are the advantages and disavantages of fluoropolymer vs PMMA?

Sangil asked Oct 19, 2024

by Sangil

8.5k points

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199k views

a hole in a copper plate has the diameter of 1.325 cm at 21 C what is the diameter of the hole at 224C

Mahesh Meniya asked Oct 19, 2024

by Mahesh Meniya

8.6k points

1 answer

4 votes

49.3k views

observe the apperance of these six elements. create two or three categories that group the elemtns by similar properties below each element write the name of the category in which the element belongs

Harish Gadiya asked Oct 19, 2024

by Harish Gadiya

7.7k points

1 answer

5 votes

198k views

A gas mixture at 20°C and 2 atm contains 0.4 mol of H₂. What is the volume of the gas? A. 10 L B. 8 L C. 5 L D. 2 L

SLearner asked Oct 19, 2024

by SLearner

8.1k points

1 answer

5 votes

220k views

In any jet propelled vehicle the thrust that propels it forward? a) Fuel combustion b) Ailerons c) Landing gear d) Radar system

Tabriz Atayi asked Oct 19, 2024

by Tabriz Atayi

8.1k points

1 answer

1 vote

209k views

In a hydraulic lift, used at a service station the radius of the large and small piston are in the ratio of 20 : 1. what weight placed on the small piston will be sufficient to lift a car of mass 1500

Jeevanandhan asked Oct 19, 2024

by Jeevanandhan

8.5k points

1 answer

4 votes

49.4k views

what is the magnitude of bouyant force that a 2.1 kg solid gold ball would expereince when fully submerged

Predictor asked Oct 19, 2024

by Predictor

8.2k points

1 answer

5 votes

41.1k views

A very small sphere with a positive charge q = 8.00 microcoulombs is released from rest.What happens to the sphere as it moves due to its positive charge? A) The sphere moves towards the negative charges.

TheUndeadFish asked Oct 19, 2024

by TheUndeadFish

8.8k points

1 answer

0 votes

47.2k views

Bob the Bear is driving a 60,000 [Ibs] (27,200 [kg]) 18-wheeler, going 35 miles per hour (15.6 [m/s]) down a country road. Wilmer the Watermelon is at the firing range, shoot his sniper rifle, which has

Tener asked Oct 19, 2024

by Tener

8.2k points

1 answer

5 votes

102k views

At a speed of 50 m.p.h. how many car lengths should you stay behind the vehicle in front of you?

Tomas Bjerre asked Oct 19, 2024

by Tomas Bjerre

8.9k points

1 answer

5 votes

7.6k views

What is the optimal angle and what is the actual angle that is used? a) Optimal: 45 degrees, Actual: 60 degrees. b) Optimal: 30 degrees, Actual: 45 degrees. c) Optimal: 90 degrees, Actual: 90 degrees.

Der Vampyr asked Oct 19, 2024

by Der Vampyr

8.3k points

1 answer

0 votes

196k views

What does an object’s kinetic energy depend on ? it’s mass and speed it’s weight and speed it’s potential energy it’s speed and trajectory Two city buses are traveling at 24 miles per hour. The buses are

Vagoberto asked Oct 19, 2024

by Vagoberto

7.5k points

2 answers

3 votes

34.0k views

What is the measurement of mass in motion called? It is also another names for Newton's 2nd Law. A. Physics B. Inertia C. Momentum

Danny Van Der Kraan asked Oct 19, 2024

by Danny Van Der Kraan

8.3k points

1 answer

4 votes

27.5k views

Which of the following is not an S.I. base unit? 1) meter 2) ampere 3) second 4) gram 5) kelvin

Mythic asked Oct 19, 2024

by Mythic

8.2k points

1 answer

1 vote

184k views

Calculate the peak flow rate for 400 acres of asphalt (C=0.70) when the intensity of the rainfall is 1in/hr. A. 280 cfs B. 28000 cfs C. 571.43 cfs D. 680 cfs

Peter Eisentraut asked Oct 19, 2024

by Peter Eisentraut

7.9k points

1 answer

2 votes

166k views

What are the three interactions that can happen when a photon intercepts vegetation?

Taliek asked Oct 19, 2024

by Taliek

7.8k points

1 answer

2 votes

21.0k views

The radius of a circle is increased from 10 to 10.06 m. Estimate the resulting change in area. a) 0.012 m² b) 0.024 m² c) 0.048 m² d) 0.096 m²

Apandit asked Oct 19, 2024

by Apandit

7.9k points

1 answer

0 votes

22.1k views

A simple compass can be made by placing a small bar magnet on a cork floating in water. What fraction of a plain cork will be submerged when floating in water? a) 1/2 b) 1/3 c) 1/4 d) 1/5

Ken Bekov asked Oct 19, 2024

by Ken Bekov

8.1k points

1 answer

0 votes

221k views

in this problem take the speed of sound to be 343 m/ fast, in meters per second, does an observer need to approach a stationary sound source in order to observe a 5.4 % increase in the emitted frequency?

Hj David Kearns asked Oct 19, 2024

by Hj David Kearns

9.5k points

1 answer

5 votes

187k views

n-Octane gas (C8H18) is burned with 90% excess air in a constant-pressure burner. The air and fuel enter this burner steadily at standard conditions. Calculate the adiabatic flame temperature in Kelvin.

Michael Fromin asked Oct 19, 2024

by Michael Fromin

8.6k points

1 answer

3 votes

212k views

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