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
frez [133]
3 years ago
9

An elevator (mass 4850 kg) is to be designed so that the maximum acceleration is 0.0680g. What are the maximum and minimum force

s the motor should exert on the supporting cable?
Physics
1 answer:
pychu [463]3 years ago
7 0
Where T is the tension in the cable, m is the mass of the elevator, and a is the acceleration; remember that the accel can be either up or down
max tension is needed to accelerate the elevator up:
T - 4850g=4850(0.068g)
T=4850g(1+0.068)=50762N
min tension:
T-4850g=-4850(0.068)
T=4850g(1-0.068)
T=44,298N
You might be interested in
Power of an electric motor is 1 h.p. what does it mean ?​
const2013 [10]

Answer: HP = Horse Power.

Explanation: it is the unit given to tell the motor's particular power and 1hp = 746 watts.

8 0
3 years ago
A small particle starts from rest from the origin of an xy-coordinate system and travels in the xy-plane. Its acceleration in th
CaHeK987 [17]

Answer:

The x-coordinate of the particle is 24 m.

Explanation:

In order to obtain the x-coordinate of the particle, you have to apply the equations for Two Dimension Motion

Xf=Xo+Voxt+0.5axt²(I)

Yf=Yo+Voyt+0.5ayt² (II)

Where Xo, Yo are the initial positions, Xf and Yf are the final positions, Vox and Voy are the initial velocities, ax and ay are the accerelations in x and y directions, t is the time.

The particle starts from rest from the origin, therefore:

Vox=Voy=0

Xo=Yo=0

Replacing Yf=12, Yo=0 and Voy=0 in (I) and solving for t:

12=0+(0)t+ 0.5(1.0)t²

12=0.5t²

Dividing by 0.5 and extracting thr squareroot both sides:

t=√12/0.5

t=√24 = 2√6

Replacing t=2√6, ax=2.0,Xo=0 and Vox=0 in (I) to obain the x-coordinate:

Xf=0+0t+0.5(2.0)(2√6)²

Xf= 24 m

5 0
3 years ago
Hey there! I need help with this question, it's about electromagnets. No absurd answers, please. I will be flagging them. Thanks
lozanna [386]

Answer: D Moreecethadev get's 5 stars, Thanks.

Explanation:

Answer is D.

3 0
3 years ago
Read 2 more answers
A gamma knife is most likely to produce electromagnetic waves at which of
beks73 [17]

Answer:

The correct option is C

C) 1020 waves per second

Explanation:

The frequencies and waveslengths of all the electromagnetic waves can easily be found by looking at the diagram of the selectromagnetic spectrum. If we notice the electromagnetic spectrum, we come to know that gamma rays have the highest frequency, about 10²⁰ Hz and the shortest wavelengths.

Therefore, a gamma knife will produces rays of about 10²⁰ waves per seconds

8 0
3 years ago
During which two moon phases would the amount of light reflected from the moon appear to be equal from Earth? Why does this occu
shusha [124]

The moon phase shows that D. light reflected during the first quarter and third quarter moon phases appears equal because the sun, moon and Earth are at right angles.

<h3>What is a moon phase?</h3>

It should be noted that the <em>moon</em> phase simply means the portion of the moon that we can see from the Earth.

In this case, the light reflected during the first quarter and third quarter moon phases appears equal because the sun, moon and Earth are at right angles.

Learn more about moon on:

brainly.com/question/398659

6 0
3 years ago
Other questions:
  • You name binary ionic compounds by naming the first element or the ___ first,
    12·1 answer
  • You run to your girlfriends house announce that you were running a rate of 50 mph. She knows this is not true because she knows
    12·2 answers
  • A single piece of wire is bent into the shape of Texas, with a total area of 13.3 cm2 . This Texas shaped loop is perpendicular
    10·2 answers
  • The greater the mass of an object, the more __________ needed to move it.
    12·2 answers
  • In which scenario does radiation occur?
    15·2 answers
  • Sabe-se que um alqueire paulista equivale a 24200 metros quadrados. Uma chácara retangular tem um alqueire e mede 100m de frente
    11·1 answer
  • The multipoint grounded neutral is intended to reduce the _____ neutral voltage drop, assist in clearing _____ line-to-neutral f
    7·1 answer
  • Ashley, a psychology major, remarks that she has become interested in the study of intelligence. In other words, Ashley is inter
    11·1 answer
  • How much thermal energy is released when 4.85 kg of steam is completely<br> condensed?
    10·1 answer
  • Which of the following statements is falsifiable?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!