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
larisa [96]
3 years ago
8

Please !!! I really need help !!! How do I understand these ?!!!!

Physics
2 answers:
trasher [3.6K]3 years ago
8 0

Answer

The answer for the first one I think is false.

The second one would be true i think. I hope i got it right and have a wonderful day

Ymorist [56]3 years ago
5 0

Answer:

True

False

Explanation:

From 0 to E, the train moves a distance of 55 m.

From F to J, the train moves a distance of 59 m.

The total distance is 55 + 59 = 114 m.

The displacement is the difference between the final position and initial position.  Here, the distance between J and 0 is -4 m.

You might be interested in
Brainlist nd 20 points
nadezda [96]

Answer:

I'm not sure but I think it's 35-39

4 0
2 years ago
Read 2 more answers
What is an indicator?
valkas [14]
The answer is A because An Indicator" changes color when it comes in contact with an acid or a base

An indicator could be anything like:
1) Litmus paper
2) Bromothymol blue
3) Phenolphthalein
4 0
2 years ago
A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equ
DochEvi [55]

Answer:

a)  k=19.6N/m

b)  V_m=0.81m/s

c)  a_m=6.561m/s^2

d)  K.E=0.096J

e)  T=0.78sec &F=1.29sec

f)   mx'' + kx' =0

Explanation:

From the question we are told that:

Stretch Length L=0.150m

Mass m=0.30kg

Total stretch lengthL_t=0.150+0.100=>0.25

a)

Generally the equation for Force F on the spring is mathematically given by

F=-km\\\\k=F/m\\\\k=\frac{m*g}{x}\\\\k=\frac{0.30*9.8}{0.15}

k=19.6N/m

b)Generally the equation for Max Velocity of Mass on the spring is mathematically given by

V_m=A\omega

Where

A=Amplitude

A=0.100m

And

\omega=angulat Velocity\\\\\omega=\sqrt{\frac{k}{m}}\\\\\omega=\sqrt{\frac{19.6}{0.3}}\\\\\omega=8.1rad/s

Therefore

V_m=A\omega\\\\V_m=8.1*0.1

V_m=0.81m/s

c)

Generally the equation for Max Acceleration of Mass on the spring is mathematically given by

a_m=\omega^2A

a_m=8.1^2*0.1

a_m=6.561m/s^2

d)

Generally the equation for Total mechanical energy of Mass on the spring is mathematically given by

K.E=\frac{1}{2}mv^2

K.E=\frac{1}{2}*0.3*0.8^2

K.E=0.096J

e)

Generally the equation for  the period T is mathematically given by

\omega=\frac{2\pi}{T}

T=\frac{2*3.142}{8.1}

T=0.78sec

Generally the equation for  the Frequency is mathematically given by

F=\frac{1}{T}

F=1.29sec

f)

Generally the Equation of time-dependent vertical position of the mass is mathematically given by

mx'' + kx' =0

Where

'= signify order of differentiation

7 0
3 years ago
Sound can travel through a medium, but it does not require a medium.<br> a. True.<br> b. False
attashe74 [19]

That's false.  No medium = no sound.
7 0
3 years ago
Which of these processes in the water cycle occur at a very high rate, to cause a hurricane?
Pavel [41]
Answer: d. evaporation and condensation

Water vapor is known as the main fuel that moves the hurricane. The evaporation will cause the water vapor to move upward carrying the latent heat of condensation. The vapor will cause condensation later. If both happen at a very high rate, the wind produced can become a hurricane. 
5 0
3 years ago
Other questions:
  • The velocity of the block at the bottom of the incline at point B
    8·1 answer
  • What factors in Earth's relationship to the Sun make life on Earth possible?
    9·2 answers
  • How has the use of computer and advance in technology changed healthcare industry
    13·1 answer
  • How many mL of beakers u need in separating salt, sand, iron filings, and beads
    9·1 answer
  • Two red blood cells each have a mass of 9.0 × 10 − 14 kg and carry a negative charge spread uniformly over their surfaces. The r
    9·1 answer
  • describe at least 2 reasons (pieces of evidence) for why we know that the continents were once joined together and have since dr
    6·2 answers
  • A brick moves across a rough surface at constant velocity. Which of the following are forces that should be included in a free b
    6·1 answer
  • Which of the following colors are part of the visible spectrum?
    6·2 answers
  • Explain how an iron needle can become magnetized...
    12·1 answer
  • Which actions are essential to active participation? Check all that apply.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!