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
Margaret [11]
3 years ago
7

The towline exerts a force of p = 4 kn at the end of the 20-m-long crane boom. if u = 30, determine the placement x of the hook

at a so that this force creates a maximum moment about point o . what is this moment?
Physics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

The answer is 80 kN . m (clockwise)

Explanation:

As,

M = P x L

Here, the towline exerts a force is P.

Substituting P for 4000N.

M = -4000N x 20m

   = -80000N.m

   = 80kN.m

Maximum moment about the point O is 80kN.m (Clockwise)

You might be interested in
Answer the questions by using de imagine
julia-pushkina [17]

Answer:

Please make image clearer

Explanation:

You are too far back please move closer to the paper

6 0
2 years ago
For several reasons you should only use hospital aproved lotions two of the reasons are because they cause breakdown of latex gl
ASHA 777 [7]
Besides that, non hospital approved lotions make your skin very dry
8 0
3 years ago
The average power dissipated in a 47 ω resistor is 2.0 w. what is the peak value i 0 of the ac current in the resistor?
pishuonlain [190]
The average dissipated power in a resistor in a ac circuit is:
P=I_{rms}^2 R
where R is the resistance, and I_{rms} is the root mean square current, defined as
I_{rms} =  \frac{I_0}{\sqrt{2}}
where I_0 is the peak value of the current. Substituting the second formula into the first one, we find
P=( \frac{I_0}{\sqrt{2} } )^2 R =  \frac{1}{2} I_0^2 R
and if we re-arrange this formula and use the data of the problem, we can find the value of the peak current I0:
I_0 =  \sqrt{ \frac{2 P}{R} }=  \sqrt{ \frac{2 \cdot 2.0 W}{47 \Omega} }=0.29 A
4 0
3 years ago
Statements best explains why a scientific theory can be revised?
Vadim26 [7]

Answer: Because new theories can come out that better explain observations and experimental results can replace old theories.

Explanation: Theories more than ten years old are usually out of date. Scientists want to prove that the work of other scientists is wrong. New evidence that supports a change prompts scientists to modify earlier theories.

4 0
2 years ago
Identify the energy transformations in the following actions.
Artemon [7]
According to the Law of Conservation of Energy, energy is neither created nor destroyed. It is only transferred through different forms of energy. For the following situations, the conversion of energy is as follows:

*Turning on a space heater = electrical energy⇒heat energy
*Dropping an apple core into the garbage =  potential energy⇒kinetic energy
*Climbing up a rope ladder = kinetic energy⇒potential energy
*Starting a car = chemical energy⇒mechanical energy
<span>*Turning on a flashlight = chemical energy</span>⇒electrical energy
4 0
3 years ago
Read 2 more answers
Other questions:
  • What If? Fluoride ions (which have the same charge as an electron) are initially moving with the same speed as the electrons fro
    14·1 answer
  • How do you answer this. Need help ASAP. Offering 20 points !!!
    12·1 answer
  • Suppose your vehicle is moving 12m/s as it crosses the 7m line. It took 6 seconds to get to the 7m line. What was its accelerati
    11·1 answer
  • A. A cook leaves a plastic spoon and a wooden spoon in a pot of hot water for the same length of time. The spoons have the same
    14·2 answers
  • If it takes 150N of force to move a box 10 meters. what is the work done on the box?
    5·2 answers
  • QUICK HELP PLEASE!
    13·1 answer
  • How do sports play a role in American Culture? Is this different from how sports play a role in other cultures?
    11·1 answer
  • Which of the following is an example of heat transfer by convection?
    13·1 answer
  • A circular loop of radius 13 cm carries a current of 13 A. A flat coil of radius 0.94 cm, having 58 turns and a current of 1.9 A
    5·1 answer
  • All objects in our solar system orbit the Sun. How is the movement of planets like
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!