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
denpristay [2]
3 years ago
5

A wall clock has a minute hand with a length of 0.53 m and an hour hand with a length of 0.26 m. Take the center of the clock as

the origin, and use a Cartesian coordinate system with the positive x axis pointing to 3 o'clock and the positive y axis pointing to 12 o'clock. What is the magnitude of the acceleration of the tip of the minute hand of the clock?
Physics
1 answer:
ollegr [7]3 years ago
3 0

Answer:

a  =1.61 × 10⁻⁶ m/s²

Explanation:

given,

length of minute hand = 0.53 m

length of hour hand = 0.26 m

the time taken by the minute hand to complete one revolution is T=3600 s

the angular frequency is

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

                         \omega =\dfrac{2\pi }{3600}

                         \omega=0.001745 rad/sec

the acceleration is  

                                a = r \omega^2

                                a = (0.53) \times (0.001745)^2

                                       a  =1.61 × 10⁻⁶ m/s²

You might be interested in
A teacher explains that a scientist named Boyle did many experiments to determine what the relationship is between the volume an
lina2011 [118]
<span>Boyle's Law, because it describes what will happen in the relationship between the pressure and volume of the gas.</span>
4 0
3 years ago
Acoustics is the study of sound. In large rooms, such as theaters where large orchestras perform, cushioned seats and carpeted f
stiv31 [10]

Answer:

soundproofing or absorbing

Explanation:

Acoustics is the study of waves, vibrations and sound and its most common applications lie in the sound and noise control industries. Acoustic protection is the application of soft and porous material to protect individuals against undesirable sounds and noises.

cushioned seats and carpeted floors are used in soundproofing to block the unwanted noise and sound.

The Cheapest Ways To Soundproof A Room

1. Rugs:

Rugs make excellent vibration dampeners.

2. Weather Stripping:

If you know that sound is getting into your room via the door or the windows then a very cheap and effective solution can be to use weather stripping.

3. Blankets.

4. Curtains.

5. Egg Cartons.

Homemade Soundproofing Panels

8 0
3 years ago
How are molecule shapes determined by electrons
il63 [147K]

Answer:

Using the VSEPR theory, the electron bond pairs and lone pairs on the center atom will help us predict the shape of a molecule. The shape of a molecule is determined by the location of the nuclei and its electrons. The electrons and the nuclei settle into positions that minimize repulsion and maximize attraction.Explanation:

3 0
3 years ago
Read 2 more answers
A device known as an optical resonator is used in lasers. An optical resonator consists of an arrangement of mirrors that reflec
polet [3.4K]

Answer:

A. The resonator behaves as a wave guide (a hollow pipe used as a transmission line). The characteristics of the pipe depend on the type of the wave to be transmitted.

4 0
2 years ago
Built an atom of Krypton which has an atomic number of 36?
gogolik [260]

Answer:

what's the question exactly because what you said was true but what's the question

7 0
3 years ago
Other questions:
  • The mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. If a rock weighs 75.0 N on earth, compu
    11·1 answer
  • As a 2-kg ball rolls down a ramp, the net force on it is 10 N. What is the acceleration?
    9·1 answer
  • Projectile motion physics question 11 please​
    11·1 answer
  • 5) Choose the correct statement about the waves shown below.
    13·1 answer
  • Science fiction movies that include explosion sound effects for battles in space are not scientifically correct. Why is this?
    15·1 answer
  • Why does a bowling ball have more<br> gravity than a soccer ball?
    11·2 answers
  • A 4 m^3 metal block is suspended using a cable in salt water with density 1030 kg/m^3. Tension on the cable is 42600N. What is t
    15·1 answer
  • Why does a revolving stone tied in a string flies away when the string breaks??
    8·1 answer
  • The bold type sa matanda​
    9·1 answer
  • van object moving with uniform acceleration has a velocity of 10.0 cm/s in the positive x-direction when its x-coordinate is 3.0
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!