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
34kurt
3 years ago
5

A particle is acted on by two torques about the origin: vector tau1 has a magnitude of 1.8 N · m and is directed in the positive

direction of the x axis, and vector tau2 has a magnitude of 4.8 N · m and is directed in the negative direction of the y axis. What are the magnitude and direction of dl with arrow/dt, where l with arrow is the angular momentum of the particle about the origin?
Physics
1 answer:
Helga [31]3 years ago
3 0

Answer:

5,126 N*m

Explanation:

Since the magnitudes are vectors, the Pythagoras theorem can be used to find the resulting vector ((1,8^2 + 4,8^2)^1/2). The direction of this vector will be contained in the X-Y plane, specifically in the fourth quadrant in Cartesian coordinates.

You might be interested in
Which planet has a rotational period closest to that of Earth?
frosja888 [35]
The answer is Mars
 Mars has a rotational period closest to that of Earth. Mars is roughly longer than a day on Earth. This is by far the closest by over a hundred hours. Other than Jupiter which rotates less than 10 hours. Mars has a rotation of 24.75 hours or 1.03 Earth days. 

4 0
4 years ago
4. Suppose the observed motion of a moving airplane, illustrated by a distance vs. time graph, is nearly a straight line with ze
jekas [21]
It shows that the airplane covers equal distance in equal time interval, that's it has a straight line from the origin.

The plane is moving at uniform speed.
7 0
3 years ago
When two or more forces act on an object at the same time what are they called
Vilka [71]

Unbalanced forces is what they are called

7 0
3 years ago
Morgan does 50 J of work with a lever
Vikentia [17]

Answer:

46 J

Explanation:

Simply calculate the 92% of 50 Joules as:

0.92 * 50 J = 46 J

8 0
3 years ago
An engine extracts 452.8kJ of heat from the burning of fuel each cycle, but rejects 266.7 kJ of heat (exhaust, friction,etc) dur
Svetlanka [38]

Answer: The thermal efficiency of the engine is 41.09 %.

Explanation:

Efficiency is the ratio of the useful work performed to the total energy expended or heat taken in.

Formula for thermal efficiency of engine is

\eta=1- \frac{Q_2}{Q_1}\times 100

\eta = efficiency

{Q_2} = heat rejected = 266.7 kJ

{Q_1} = heat extracted = 452.8 kJ

Putting in the values we get:

\eta=1- \frac{266.7 kJ}{452.8 kJ }\times 100

\eta=0.41\times 100

\eta =41.09\%

The thermal efficiency of the engine is 41.09 %.

7 0
4 years ago
Other questions:
  • A 0.330-kg volleyball is thrown vertically downward with a speed of 0.150 m/s in a place where g = 9.81 m/s2. It takes it 0.0655
    12·1 answer
  • Which of the following formulas represents an olefin (aka alkaline)
    8·1 answer
  • A bat, flying at 7.00 m/s toward a wall, emits a chirp at 50.0 kHz. If the wall reflects this sound pulse, what is the frequency
    8·1 answer
  • The overall charge of the nucleus is _____<br> a. positive <br> b. negative <br> c. neutral
    15·2 answers
  • Describe the four fundamental forces in nature. Rate them in order from greatest force to least force
    5·1 answer
  • a ball weighing 100 n is shown suspended from a system of cords. what is the tension in the horizontal and angled cords at 50 de
    12·1 answer
  • An 92-kg football player traveling 5.0m/s in stopped in 10s by a tackler. What is the original kinetic energy of the player? Exp
    6·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    9·2 answers
  • If love is the answer then what is the answer
    13·2 answers
  • Two disks are rotating about the same axis Disk A has a moment of inertia of 9.99 kg m2 and an angular velocity of 4.51 rad s Di
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!