This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the ... (Read 225 times)

futuristic

  • Hero Member
  • *****
  • Posts: 638
on: Jul 29, 2018
A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the square of its speed. The object falls with an acceleration of 4.00 m/s2 downward when it is falling downward at 70.0 m/s.
 
  What is its terminal speed?
  A) 172 m/s B) 108 m/s C) 110 m/s D) 157 m/s E) 91.0 m/s

Question 2

The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W.
 
  Assume the resistance of the filament of the bulb is constant and is independent of operating conditions. If the light bulb is operated with a current that is 50 of the current rating of the bulb, what is the actual power drawn by the bulb?
  A) 15 W B) 10 W C) 30 W D) 20 W E) 25 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zogaridan

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

A


futuristic

  • Member
  • Posts: 638
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

kusterl

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Spot the hidden object Spot the hidden object
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
These photos show a rat burying a test object from which it has just received a single mild shock. These photos show a rat burying a test object from which it has just received a single mild shock.
When both sides of the back have been massaged, redrape the back. With light to moderate force, use ... When both sides of the back have been massaged, redrape the back. With light to moderate force, use ...
Statistics Canada, Labour Force Survey Statistics Canada, Labour Force Survey
Find the magnitude and the direction of the resultant vector of the two vectors below: Find the magnitude and the direction of the resultant vector of the two vectors below:
Video: Alzheimer's Disease

For a complete list of videos, visit our video library