shivani00002415883

3. Why did Cavendish use a telescope to observe the deflection of the rod?

He needed a way to magnify the rod.

He needed a way to make the rod look smaller.

He needed a way to observe the rod from a distance.

He needed a way to move the rod.

4. Magnetism was another potential source of error. The source of the magnetic field Cavendish
was concerned about was-

the enclosure around his apparatus.

Earth.

the metal balls and rods.

The air currents.

5. What did Cavendish discover with respect to the temperature of the balls in his experiment?

It had no effect.

It could be a source of error.

It was better to use balls at many different temperatures.

It was better to freeze balls before using them.

6. Experiments exploring sources of error-

were performed only by scientists working before 2000.

have been performed only by contemporary scientists.

are considered unimportant with modern instruments.

are important for most scientific studies.

Ammonium nitrite decomposes to give off nitrogen gas and liquid water. How many grams of ammonium nitrite must have reacted if 2.58 L of gas was collected over water in a gas collecting tube at 21.0°C and 97.8 kPa?

Balanced equation:

Will the volume of nitrogen (from the previous problem) INCREASE, DECREASE or remain the SAME if... *Explain briefly*

...the experiment is done at significantly higher temperature?

B. ...the amount of ammonium nitrite was increased?

C.

...the experiment was not collected over water?

How many milliters of carbon dioxide gas can be produced at 78°C at 45.5 psi pressure with 900.0 mL of 3.00M phosphoric acid and 235 grams of iron (III) carbonate?

How deep is the Mariana trench

what is wireshark?

How do we find where the light is reflected by a spherical mirror 

Describe the function of ovule

I need confimation that I have correctly balanced the equation,appropriate oxidation states, and corresponding losing/gainingelectrons. I appreciate your time & effort!

A.

Ox #:

0 +2 +5-2 +2 -1 0

2Mg + Zn(NO₃)₂ --> 2Mg(No₃) + Zn

Losing: Mg loseselectrons when it goes from 0 to a +2 charge.

Gaining: Zngains electrons when it goes from +2 to 0.

Ox #:

0 +2 +5 -2 +2 -1 0

2Mg + Cu (NO₃)₂ --> 2Mg(No₃) + Cu

Losing: Mg loseselectrons when it goes from 0 to a +2 charge.

Gaining: Cugains electrons when it goes from +2 to 0.

Ox #:

0 +2 +5-2 +2 -1 0

2Mg + Pb(NO₃)₂ --> 2Mg(No₃)+ Pb

Losing: Mg loseselectrons when it goes from 0 to a +2 charge.

Gaining: Pbgains electrons when it goes from +2 to 0.

Thank you! (:

can someone help me to figure out this problem?

I guess I didn't completely understand this lab, sorry. But here'sthe three critical thinking questions that I'm unable tosolve:

A) Explain what affect if any, each of the following would have onthe purity or yield of the crystals produced in a recrystallizationprocess: if the solution does not form crystals immediately, butafter sitting overnight the liquid has completely evaporated toleave solid.

B) If compound A is soluble in water and ethanol at roomtemperature and is insoluble in dichloromethane, petroleum etherand toluene at all temperatures describe how you wouldrecrystallize an impure sample of A if you only had these fivesolvents available to you.

C) How much solvent should be used to recrystallize 1.0g of anunknown sample?

Thanks!

3. As astronauts consider how to better study Excalibur, they reflect on some of the probes they have used in our own solar system. They recall a probe that they released from a spacecraft onto the moon. The probe sends signals to a transmitter on the spacecraft. Assuming that the probe and transmitter are 10m apart and they have no initial charge, what negative charge must be transferred to the probe to create an attractive force between them of 200N? (Show your work) (5 points)

4. Using your knowledge of Newton's Universal Law of Gravitation and Coulomb's Law, compare and contrast them. How are they similar? How are they different? (5 points)

Cells contain small organelles inside of them. Each organelle

What does the term nirvana mean in Buddhism

1. Make the chemical structures:
   
   a) triphenylacetic acid
   b) chlorophthalic acid
   c) 4-ethyl-2-propyloctanoic acid
   d) t-butyl benzoate
   
   

Explain the relationship between bias and machine learning for Alexa

Complete Denture Base Adjustment

What is physics?

Twelve principles of animation

An application server was recently upgraded to prefer TLS 1.3, and now users are unable to connect their clients to the server. Attempts to reproduce the error are confirmed, and clients are reporting the following:

ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Which of the following is MOST likely the root cause?

1. The client application is testing PFS.
2. The client application is configured to use ECDH
3. The client application is configured to use RC4.
4. The client application is configured to use AES-256 in GCM.

An organization is designing a network architecture that must meet the following requirements:

✑ Users will only be able to access predefined services.

✑ Each user will have a unique allow list defined for access.

✑ The system will construct one-to-one subject/object access paths dynamically.

Which of the following architectural designs should the organization use to meet these requirements?

1. Peer-to-peer secure communications enabled by mobile applications
2. Proxied application data connections enabled by API gateways
3. Microsegmentation enabled by software-defined networking
4. VLANs enabled by network infrastructure devices

A pharmaceutical company recently experienced a security breach within its customer-facing web portal. The attackers performed a SQL injection attack and exported tables from the company's managed database, exposing customer information.

The company hosts the application with a CSP utilizing the IaaS model. Which of the following parties is ultimately responsible for the breach?

1. The pharmaceutical company
2. The cloud software provider
3. The web portal software vendor
4. The database software vendor

A host on a company's network has been infected by a worm that appears to be spreading via SMB. A security analyst has been tasked with containing the incident while also maintaining evidence for a subsequent investigation and malware analysis.

Which of the following steps would be best to perform FIRST?

1. Turn off the infected host immediately.
2. Run a full anti-malware scan on the infected host.
3. Modify the smb.conf file of the host to prevent outgoing SMB connections.
4. Isolate the infected host from the network by removing all network connections.

A security engineer is hardening a company's multihomed SFTP server. When scanning a public-facing network interface, the engineer finds the following ports are open:

✑ 25

✑ 110

✑ 137

✑ 138

✑ 139

✑ 445

Internal Windows clients are used to transferring files to the server to stage them for customer download as part of the company's distribution process.

Which of the following would be the BEST solution to harden the system?

A. Close ports 110, 138, and 139. Bind ports 22, 25, and 137 to only the internal interface.

B. Close ports 25 and 110. Bind ports 137, 138, 139, and 445 to only the internal interface.

C. Close ports 22 and 139. Bind ports 137, 138, and 445 to only the internal interface.

D. Close ports 22, 137, and 138. Bind ports 110 and 445 to only the internal interface.

Got this question during an interview - Without putting a camera inside the fridge. How would you check to see if the light turns off when you close the door.

I found this one answer on the internet -put a thermometer on the bulb and leave the door shut for 10 minutes. Then open the door and check the thermometer immediately. If it is cold, then you know the bulb was off when the door was closed.

Are there any other answers or the one listed above is the only answer.

Didn't know what category to choose so I selected science.

Find the [OH-] for the following:

A 2.234 x 10-6 M solution of HI (hydroiodic acid).

When and where did HRM is said to be started in Ethiopia?

who is nelson mandela

por que la política peruana es el actual terror de la población

Which planet takes maximum time in one revolution around the Sun? 

Asteroids are small celestial bodies in the solar system, they are found between which two planets?

What is the name of the planet which is called ‘Earth’s twin sister’?

What is the unit of finding distance between stars? 

Which is the heaviest planet? 

Which is the largest mountain in the world?

which is the fastest means of communication?. 

What's the difference between electricity and the electronics?

What is science

कानून क्या है, यह क्यों ज़रूरी है, इसकी महत्ता को बताएं?

Where do I start off as a beginner artist?

I’m what ways can you increase volume of a gas?

Increase temperature

Lower temperature

Lower pressure

Increase pressure

What pressure is needed to compress 5.25 L of gas at 1.77 atm to a volume of 0.0100L? Temperature is held constant