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
sveticcg [70]
2 years ago
8

A weight suspended from a spring is seen to bob up and down over a total distance of 20 centimeters twice each second.

Physics
1 answer:
Zielflug [23.3K]2 years ago
5 0

<u>Answer</u>

8. 2 Hz

9. 0.5 seconds

10. 20 cm


<u>Explanation</u>

<u>Q 8</u>

Frequency is the number of oscillation in a unit time. It is the rate at which something repeats itself in a second.

In this case, the spring bob up and down 2 times per second.

∴ Frequency = 2 Hz

<u>Q 9</u>

Period is the time taken to complete one oscillation.

2 oscillations takes 1 second

1 oscillation = 1/2 seconds.

∴ Period = 0.5 seconds


<u>Q 10</u>

Amplitude is the the maximum displacement of the spring.

In this case the spring bob up 20 cm. This is it's displacement.

∴ Amplitude = 20 cm

You might be interested in
There is strong evidence that Europa, a satellite of Jupiter, has a liquid ocean beneath its icy surface. Many scientists think
dangina [55]

Answer:

4.44 rpm

Explanation:

\omega = Angular speed

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

r = Radius of Europa = \frac{3138000}{2}\ m

R = Radius of arm = 6 m

The acceleration due to gravity is given by

g=\frac{GM}{r^2}\\\Rightarrow g=\frac{6.67\times 10^{-11}\times 4.8\times 10^{22}}{\left(\frac{3138000}{2}\right)^2}\\\Rightarrow g=1.3\ m/s^2

Here the centripetal acceleration of the arm and acceleration due to gravity are equal

a_c=\omega^2R

a_c=g\\\Rightarrow \omega^2R=1.3\\\Rightarrow \omega^2\times 6=1.3\\\Rightarrow \omega=\sqrt{\frac{1.3}{6}}\\\Rightarrow \omega=0.46547\ rad/s

Converting to rpm

1\ rad/s=\frac{60}{2\pi}\ rpm

0.46547\ rad/s=0.46547\times \frac{60}{2\pi}\ rpm=4.44\ rpm

The angular speed of the arm is 4.44 rpm

8 0
3 years ago
True or false : In crystalline solids the particles are not arranged in a regular pattern
IrinaK [193]
False. They are arranged in a structure called a crystal lattice
3 0
2 years ago
Read 2 more answers
For metalloids on the periodic table, how do the group number and the period number relate?
lapo4ka [179]
Im guessing it's (a) since the numbers go in chronological order and you read the periodic table left to right
3 0
3 years ago
Read 2 more answers
Use the drop-down menu to complete the statement. One difference between prokaryotic cells and eukaryotic cells is that a eukary
Ahat [919]

Answer:

Nucleus

Explanation: I did the quiz and got it right. Have an amazing day!

8 0
2 years ago
Suppose that a rectangular toroid has 1,500 windings and a self-inductance of 0.060 H. If the height of the rectangular toroid i
V125BC [204]

Answer:

Current in the toroid will be I=17.32\times 10^{-3}A

Explanation:

We have given number of winding in rectangular toroid N = 1500

Self inductance of toroid L = 0.06 H

Magnetic energy stored in toroid E=9\times 10^{-16}J

We have to find the current in the toroid

Magnetic energy stored is equal to E=\frac{1}{2}Li^2

9\times 10^{-6}=\frac{1}{2}\times 0.06\times I^2

I=17.32\times 10^{-3}A

So current in the toroid will be I=17.32\times 10^{-3}A

5 0
3 years ago
Other questions:
  • The molar mass of a gas
    7·2 answers
  • What's the steady state theory
    11·2 answers
  • A student initially at rest on a frictionless frozen pond throws a 1 kg hammer in one direction. After the throw, the hammer mov
    8·1 answer
  • engineers who design battery operated devices suck as sell phones and MP3 players try to make them as efficient as possible. An
    5·1 answer
  • As it heats, does fluid rise or compact<br> s
    8·2 answers
  • Why do hurricanes rotate counterclockwise in the northern hemisphere
    11·1 answer
  • Please help, thank you to anyone who answers! Will mark brainliest, give a thanks and a 5 star.
    12·1 answer
  • Hannah drove 360 mi in 5.2 hours. What was her average speed?
    10·1 answer
  • 2. Think about the energy that was needed to form the wave in the pool. Where did the energy come from? ​
    9·1 answer
  • &gt;
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!