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
salantis [7]
3 years ago
14

Help Please! a lot of points for 3 questions

Physics
1 answer:
s344n2d4d5 [400]3 years ago
4 0

Answer:

1. Point 2.

2. Either #1 or #4 (sorry, I'm not 100% sure).

3. I'm pretty sure #3.

I hope this helps!

You might be interested in
A party shop delivers helium-filled balloons to homes and businesses. The owners realize from experience that on hot summer days
kvasek [131]

Answer:As the temperature increases, the helium in the ballon expands.

Explanation:

I took the quiz already

6 0
2 years ago
Read 2 more answers
A mass hanging from a spring oscillates with a period of 0.35 s. Suppose the mass and spring are swung in a horizontal circle, w
Annette [7]

Answer:

66 rpm

Explanation:

The period of oscillation is given by

T=2\pi \sqrt{\frac {m}{k}}

\frac {k}{m}=\frac {4\pi^{2}}{T^{2}} where  T is time period of oscillation which is given as 0.35 s, k s spring constant and m is the mass of the object attached to the spring.

Also, net force is given by

Net force=m\omega^{2} L

\omega=\sqrt{\frac {k\triangle L}{mL}} where \triangle L is the elongation, L is original length, \omega is the angular velocity

Substituting the equation of \frac {k}{m} into the above we obtain

\omega=\sqrt {\frac {4\pi^{2}\triangle L}{T^{2} L}}

\omega=\sqrt {4\pi^{2}\times 0.15L}{0.35^{2}\times L}}=6.952763\approx 6.95 rad/s

6.95\times\frac {60 s}{2\pi rad}\approx 66 rpm

6 0
3 years ago
Is being a plat 2 in rainbow 6 siege a good rank?
icang [17]

Answer:

In a way it does, but overall, there are many factors that affect your rank. In general, and talking about the average Platinum II, they are pretty decent according to casual player standards.

Explanation:

6 0
3 years ago
Where is heat transferred by radiation in a lava lamp
GuDViN [60]

Answer:

Explanation:

A lava lamp consists of oil, and wax in a glass, and a heat source (a light bulb) placed underneath the glass. When the lamp is turned on the bulb gets hot. As the bulb heats up some of the heat from the bulb is transferred to the glass by radiation.

6 0
3 years ago
Una bola de acero rueda y cae por el borde de una mesa desde 4ft por encima del piso. Si golpea el suelo a 5ft de la base de la
ycow [4]

Answer:

     \large\boxed{\large\boxed{10ft/s}}

Explanation:

The question, translated, is:

  • <em>A steel ball rolls and falls off the edge of a table from 4ft above the floor. If you hit the ground 5ft from the base of the table, what was your initial horizontal velocity?</em>

<em />

<h2>Solution</h2>

<em />

This is a projectile motion, for which, the equations that you will need are:

    V_x_0= V_x=x\cdot t

     y=y_0+Vy_o\cdot t-g\cdot t^2/2

<u />

<u>1. Calculate the time that it takes the ball to fall 4ft</u>

    0=4ft-g\cdot t^2/2\\\\t^2=2\times 4ft/( 32.174ft/s^2)=0.24865s^2\\\\t=0.4986s

<u />

<u>2. Calculate the horizontal velocity:</u>

     V_x_0= V_x=x\cdot t\\\\V_x_0=5ft/0.4986s=10.027ft/s\approx 10ft/s

3 0
3 years ago
Other questions:
  • Orange Juice mass = 18 G Volume = ??  Density 6 g/ ML <br><br>What is the Volume?
    6·2 answers
  • Jennifer regularly instructs her students to avoid believing age-old theories about the differences between men and women. “As i
    6·2 answers
  • The mass density of an object is 16.3 g/cc, and its volume is determined to be 16.7 cc. what is the mass of the object?
    14·1 answer
  • Alexander calders mobiles, like untitled, move when air currents move through them, making them_____________
    12·1 answer
  • Describe why it was possible for a paperclip to ‘float’ on water
    8·1 answer
  • You stretch a spring ball system 0.552 m away from its equilibrium point and watch it oscillate. You find that the system's angu
    12·1 answer
  • Action and reaction forces will cancel because they are pushing on the same object toward each other. True or False
    8·2 answers
  • Need help with my science quiz
    7·1 answer
  • What happens to a species if the death rate is higher then the birthrate?
    11·1 answer
  • Colulate the wavelength of i)a ball moving of 40m/s i i)A proton moving at 40 ms i i i) An election moving at 40m/s​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!