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
spin [16.1K]
2 years ago
9

A pendulum is made by tying a 75 g ball to a 130-cm-long string. the ball is pulled 5.0∘ to the side and released.

SAT
1 answer:
Maslowich2 years ago
6 0

The ball’s speed and direction at the lowest point of trajectory are; 3.1 m/s and swing to the same angle on the other side

<h3>What is the speed at the lowest point?</h3>

We will assume that all of the motion will transfer to Kinetic Energy at the lowest point. Now, the difference in height will be;

Δh = (130 – 130*cos °5) = 0.49 cm

The change in PE is;

ΔP.E = mgΔh

ΔP.E = 9.8m/s² × 0.75kg × 0.049 m

ΔP.E = 0.36015 J

Formula for kinetic energy is;

K.E = ¹/₂*m*v²

From conservation of energy;

K.E = P.E

Thus;

¹/₂* 0.075 * v² = 0.36015

v = √[(0.36015 * 2)/0.075]

v = 3.1 m/s

Thus, the pendulum will swing to the same angle on the other side.

Read more about Speed of Pendulum at; brainly.com/question/17054952

You might be interested in
Can anyone help me make sentences for these words
mojhsa [17]

Answer:

Explanation:

Both ranges <em>ABUT </em> at their <em>eastern </em>or E.N.E

I'd like to follow up with an <em>ANTECEDENT </em>question for the reporter

It is his sacred duty and his private interest to <em>BEGET</em> children and to train them to take his place

When you use a baseball bat to beat someone until he is unconscious, this is an example of when you <em>BLUDGEON</em> him.

Her thoughts were interrupted by a <em>CACOPHONY </em>of a sound, I heard a voice call out in agony.

The harbour is <em>CAPACIOUS</em> and secure, with a sufficient depth of water for the largest vessels.

Music is a means of <em>CATHARSIS</em> for her.

Her <em>COTERIE</em> of fellow musicians His films are admired by a small <em>COTERIE</em>  of critics.

Only a <em>DEMAGOGUE </em>could persuade so many people to rebel against authority.

Even his misanthropy is only an inverted form of social solicitude.  Her books are a sovereign remedy for depression and misanthropy.  

8 0
3 years ago
Hey peeps! Whose bored! Meeeeeeee!
nordsb [41]
I AM TOTAALLY BORED WITH SCHOOL
5 0
3 years ago
Read 2 more answers
When eleanor roosevelt says, "there is such a thing as going through the world blindfolded. i have known people who were quite u
Leokris [45]

When Eleanor Roosevelt says, "There is such a thing as going through the world blindfolded. I have known people who were quite unconscious of the play of the sun and shadow on the hills," she means people can fail to recognize the beauty in the world. This means that these people rarely take advantage of opportunities in life.

The wife of President Franklin D. Roosevelt, Eleanor Roosevelt was the first lady of the United States of America from 1933 to 1945. During this tenure, Roosevelt championed poverty alleviation, access to education and civil rights  as well as travelled to the European and Pacific front lines, when the world was engaged in World War II.

To learn more about Eleanor Roosevelt, click

brainly.com/question/370460

#SPJ4

4 0
1 year ago
Read 2 more answers
patient who is admitted to the hospital after a stroke suffers from the following symptoms: episodes of intense, unexplainable f
Alja [10]

The fear is caused by the restriction of blood flow to the reticular system of the brainstem. This affects the amygdala that is connected to the hypothalamus, which are part of the diencephalon. The difficulty in speaking is caused by damage to Borca's area in the frontal lobe. Blindes in the right visual field is caused by damage to the right occipital lobe.

6 0
3 years ago
The mean salary of 5 employees is 41000 the medium is 39200 the lowest paid employee salary is 30000 if the lowest paid employee
xxTIMURxx [149]

Answer:

                 

Explanation:

7 0
3 years ago
Other questions:
  • A merging traffic sign is an example of a ... sign
    5·1 answer
  • Which of the following processes cause minerals to crystallize?
    11·1 answer
  • what element was poisonous to the first forms of life on Earth until they evolved to take advantage of it by using cellular resp
    5·1 answer
  • How can I be perfect at sat ?
    11·2 answers
  • ________________ is an important quality to possess as a boxer but you must sometimes know when not to pick a fight.
    12·1 answer
  • GPA Scale:
    8·1 answer
  • belinda works at a leading restaurant. she is worried about making mistakes at her workplace, so she pays attention to details.
    11·1 answer
  • How did the officer feel about himself​
    5·2 answers
  • It is important to know the difference between atoms, ions, and isotopes. Choose all of the correct answers.
    15·1 answer
  • If you don’t have time to conduct thorough research about your target audience’s preferred channels, what is a helpful way to ga
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!