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If a capillary tube is not plugged, it must be filled with a special clay before centrifugation A.True B.False

Marcel Gwerder asked Dec 25, 2024

by Marcel Gwerder

8.3k points

1 answer

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43.6k views

What does a negative number in the net-force equation mean?

Nikjohn asked Dec 25, 2024

by Nikjohn

8.6k points

1 answer

5 votes

10.2k views

Which units express specific heat capacity?a. j/Â°c, j/k, cal/Â°c, cal/k b. j/(giÂ°c), j/(gik), cal/(giÂ°c), cal/(gik)c. j, cal Âd. °c, k

Mark He asked Dec 25, 2024

by Mark He

8.0k points

1 answer

1 vote

162k views

A 2 kg laptop sits on the floor near a 4 kg jar of pennies. If the force of gravity between them is 3.42 x 10-10 N, how far apart are they? OA. 1.25 m OB. 1.68 m OC. 2.12 m OD. 1.81 m

Hekmat asked Dec 25, 2024

by Hekmat

8.1k points

2 answers

5 votes

227k views

A bus leaves Station Tegucigalpa TEG and travels via stations Comayagua COM and Siguatepeque SIG to San Pedro Sula SPS The times the bus passes the various Honduran cities are as shown: City TEG COM SIG

JamieSee asked Dec 25, 2024

by JamieSee

8.3k points

1 answer

4 votes

171k views

The relative humidity (for a given volume of air), expressed as a decimal fraction, is A) Pressure humidity B) Specific humidity C) Dew point D) Mixing ratio

Singpolyma asked Dec 25, 2024

by Singpolyma

8.7k points

1 answer

1 vote

41.4k views

A dolphin is able to tell in the dark that the ultrasound echoes received from two sharks come from two different objects only if the sharks are separated by 3.50 m. (a) If the ultrasound has a frequency

Egonzal asked Dec 25, 2024

by Egonzal

7.8k points

1 answer

2 votes

51.3k views

At what speed does a 1000 kg compact car have the same kinetic energy as a 17000 kg truck going 21 km/h? Express your answer in kilometers per hour.

Rickythefox asked Dec 25, 2024

by Rickythefox

7.5k points

1 answer

0 votes

149k views

Satellite J takes 20 weeks to orbit the earth. The position of satellite J is 4 times further from the earth than satellite K. How long does satellite K orbit the earth?

RonTLV asked Dec 25, 2024

by RonTLV

7.2k points

1 answer

4 votes

15.2k views

A woman of mass 50 kg runs up a 300m high hill in 5 min. Her power is: a) 150 W b) 500 W c) 100 W d) 50 W e) 300 J

Blakcat asked Dec 25, 2024

by Blakcat

8.1k points

2 answers

1 vote

182k views

Is dot density more or less precise than _______? 1) Choropleth maps 2) Cartograms 3) Isoline maps 4) Proportional symbol maps

Dale Anderson asked Dec 25, 2024

by Dale Anderson

8.3k points

1 answer

4 votes

66.0k views

In view of the small currents that cause shock hazards and the larger currents that circuit breakers and fuses interrupt, how do they play a role in preventing shock hazards? a) By reducing voltage. b)

SHANK asked Dec 25, 2024

by SHANK

7.5k points

1 answer

4 votes

40.8k views

An 8.75 kg point mass and a 14.0 kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 17.0 cm from the 8.75 kg mass along the lines connecting

Theprojectabot asked Dec 25, 2024

by Theprojectabot

8.1k points

1 answer

5 votes

233k views

A closely wound rectangular coil of 80 turns has dimensions 25.0student submitted image, transcription available belowby 40.0student submitted image, transcription available below. The plane of the coil

Dibs asked Dec 25, 2024

by Dibs

8.4k points

1 answer

3 votes

39.8k views

A diverging lens has a focal length of 20 cm. Its power in diopters is: A) 0.20 B) -0.20 C) 0.05 D) 20 E) -5 F) -20 G) 5 H) -0.05

Lee Davis asked Dec 25, 2024

by Lee Davis

8.1k points

1 answer

3 votes

223k views

A ball flies at 9.030 m/s. What is its speed in ft/min? Note, 1 inch = 2.54 cm exactly.

Will Sargent asked Dec 25, 2024

by Will Sargent

8.0k points

1 answer

0 votes

220k views

A solar panel can supply 5 W of power on Earth. How much power can it supply on Mars? (Hints: AM1 of the Earth and the Mars)

Pdavis asked Dec 25, 2024

by Pdavis

9.1k points

1 answer

3 votes

36.0k views

A 9.0-V battery is connected to a bulb whose resistance is 1.9 Ω. Part A: How many electrons leave the battery per minute? Express your answer using two significant figures.

Ritesh Adulkar asked Dec 25, 2024

by Ritesh Adulkar

8.8k points

1 answer

2 votes

115k views

What is the transfer time for a hard drive rotating at 7,200 rpm or 120 revolutions per second?assume there are 30 sectors per track. (give your answer in milliseconds) Option 1: 2 milliseconds Option

Londonfed asked Dec 25, 2024

by Londonfed

8.3k points

1 answer

2 votes

106k views

What are we infering when we measure the redshift-distance relation with supernovae?

Sjf asked Dec 25, 2024

by Sjf

8.2k points

1 answer

2 votes

98.4k views

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