Examlex
Dust particles are pulverized rock,which has density 2500 kg/m3.They are approximately spheres 20 μm in diameter.Treating dust as an ideal gas,what is the root-mean-square speed (thermal speed) of a dust particle at (The Boltzmann constant is
Contact Group
A collection of email addresses grouped under a single name, allowing for easy distribution of messages to multiple recipients.
Navigation Pane
A user interface component that allows users to easily move between different sections or levels of information within an application or document.
Notes Pane
A section in presentation software that allows users to add notes to their slides, intended for the presenter's reference.
Contact Record
An entry in a database or software application that contains information about an individual or organization, such as name, address, and phone numbers.
Q2: A negatively charged particle is moving to
Q3: You are driving along a highway at
Q5: A 20.0-kg uniform plank is supported by
Q13: The root-mean-square speed (thermal speed)for a certain
Q14: A 4.0-μF capacitor that is initially uncharged
Q28: The compressor in a certain Carnot refrigerator
Q37: A 500-g particle is located at the
Q42: A steel rod 55 cm long has
Q46: A Carnot engine operates between a high
Q47: A planet has two small satellites in