1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ede4ka [16]
3 years ago
14

Which of the following is a unit of rotational speed?

Physics
1 answer:
gladu [14]3 years ago
3 0
C. Rotations per second
Or normally we'd use Radians Per second  

_Brainliest if helped!!
You might be interested in
A 15W fluorescent light bulb uses operates for 30 minutes and produces 20kJ of light energy, what is the percent efficiency of t
svlad2 [7]

Given that ;

Energy (work ) Produced by bulb =20 KJ = 20000 J

Input power = 15 KW

Output power given by the bulb  = Rate of doing work

                                                   = Work ÷ time

                                                   = 20000 ÷ 1800   <em>(since 1 min = 60 seconds)</em>

                                                   = 11.11 W

Noe, efficiency is the ratio of output power to input power

                                                   η = output power ÷ input power

                                                      = 11.11 ÷ 15

                                                      = 0.74

                                                      = 74%

<em>Efficiency of light bulb is 74%</em>

<em>If you liked the procedure, please give me brainliest</em>


8 0
3 years ago
Can someone please tell me the answer
Anna35 [415]
So here the red ball is initially stationary so V2=0m/s. Plus for the sake of rules the mass must be converted into kg. Initial momentum would equal the final momentum. Make an equation out of it and get the answer.

8 0
3 years ago
Who invented the assembly line what purpose does it serve
insens350 [35]

Answer:

Ransom E. Olds was the person who invented assembly line.

The assembly line method was the very first method to be used in automotive sector and was the prototype for which Henry Ford industries had developed his own.

Explanation:

Ransom E. Olds was the person who invented assembly line.

The assembly line method was the very first method to be used in automotive sector and was the prototype for which Henry Ford industries had developed his own. Henry Ford enhanced the design of assembly line through the use of a conveyor system's running platforms.

The assembly line has always been recognized as among the 20th century's greatest inventions. It so profoundly influenced the industrialized world that industries that didn't adopt the trend quickly became extinct and was one of the primary factors that helped to incorporate the automobile into American society.

6 0
3 years ago
Identifying Structures in Photosynthesis
n200080 [17]

Answer:

1

Explanation:

8 0
2 years ago
Read 2 more answers
How far east will the plane travel in 1 hour?
MaRussiya [10]
Let Vpa be the velocity of plane with respect to air and Vp and Va be the velocities of plane and air respectively with respect to ground. 
<span>Vpa = Vp - Va </span>
<span>Vp = Vpa + Va [all these quantities are vectors] </span>
<span>so by parallelogram law of vector addition </span>
<span>Vp = (Va^2 + Vpa^2 + 2*Va*Vpa*cos120)^(1/2) </span>
<span>Vp^2 = 33^2 + 140^2 - 33*140 </span>
<span>Vp^2 = 16096 </span>
<span>Vp = 126.763m/s </span>
<span>(2) tan b = (33*sin120)/(140+33/2) </span>
<span>b = 10.34 degrees North of East </span>
<span>(3) component of velocity of plane in east = Vp cos(10.34) = 126.763*1 = 126.7m/s </span>
<span>distance travelled by plane in east = 126.7 * 60*60=456120 m</span>
3 0
3 years ago
Other questions:
  • An electrically neutral model airplane is flying in a horizontal circle on a 2.0-m guideline, which is nearly parallel to the gr
    9·1 answer
  • Consider a semi-infinite (hollow) cylinder of radius R with uniform surface charge density. Find the electric field at a point o
    9·1 answer
  • PART ONE
    7·1 answer
  • What are some ways living things can be grouped
    10·1 answer
  • If the magnitude of the electric field in air exceeds roughly 3 ✕ 106 N/C, the air breaks down and a spark forms. For a two-disk
    6·1 answer
  • What does gravitational potential energy typically change into? Question 8 options: A-Electric energy B- Kinetic energy C- Radio
    13·2 answers
  • What is the only medium (not provided) that light would travel through even faster than air?
    7·2 answers
  • WILL MARK BRAINLIEST PLEASE HELP AND SHOW ALL WORK
    13·1 answer
  • Run Gizmo: Orbital velocity is the velocity needed to make a circular orbit. Use the Gizmo to find the orbital velocity of the b
    9·1 answer
  • Obtain a volume of 12.5 millimeters of liquid in the diagram
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!