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
andrew11 [14]
3 years ago
9

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the

distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?
Physics
1 answer:
pychu [463]3 years ago
3 0

Answer:

109.385m

Explanation:

In 1 day, the hour hand travels 2 circles, or 4π rad in angular. The distance it travels is its angle times the radius

7.4 * 4π = 93 mm

In 1 day, the minute hand travels 24*60 = 1440 circles, or 1440 * 2π = 2880π rad in angular. The distance it travels is

12.1 * 2880π = 109478 mm

So the distance traveled by the tip of the minute hand that exceed the distance traveled by the tip of the hour hand is

109478 - 93 = 109385 mm or 109.385 m

You might be interested in
Mention & reasons why the ability to adapt to change is
s2008m [1.1K]

Answer:

The ability to adapt is important because :

1) It helps in the survival of human beings.

2) It brings more variation to the human kind.

3) It helps the species from getting endangered or extinct.

4) It brings transformation in the adapting kind.

Hope this helps you☺️☺️

5 0
3 years ago
If a piece of iron is placed in pure nitrogen, nothing happens. If the in is exposed to air, it begins to rust. What conclusion
kari74 [83]
Based on this, you can tell that Iron(Fe) does not react with Nitrogen(N), but does with something in normal air. The element the Iron is reacting with Oxygen(O), and the compound that is formed is called iron oxide.
6 0
3 years ago
Satellites can focus on specific latitudes using:
Fittoniya [83]
B- east west orbits
4 0
2 years ago
A student solving a physics problem for the range of a projectile has obtained the expression r= v20sin(2θ)g where v0=37.2meter/
DedPeter [7]

Formula of range is given by

R = \frac{v_o^2 sin2\theta}{g}

here given that

v_0=37.2m/s

θ=14.1∘

g=9.80m/s^2

now by above equation

R = \frac{37.2^2 sin2*14.1}{9.80}

R = 66.7 m

so range will be 66.1 m

5 0
3 years ago
Read 2 more answers
A particular conductor has 3.0 × 10^27 mobile electrons per cubic meter. The material is in the shape of a cylinder of length 6.
irina1246 [14]

Answer:

Explanation:

Given

Length of cylinder L=6 cm

diameter of cylinder d=1 cm

Area of cross-section A=\frac{\pi\times d^2}{4}

A=\frac{\pi \times 10^{-4}}{4}=7.855\times 10^{-5} m^2

Emf =2.5 V

current I=5 mA

Resistance=\frac{V}{I}=\frac{2.5}{5\times 10^{-3}}

R=500 \Omega

R is also given by

R=\rho \frac{L}{A}

where \rho =resistivity

\rho =\frac{RA}{L}=\frac{500\times 7.85\times 10^{-3}}{6}

\rho =0.654 \Omega -m        

6 0
3 years ago
Read 2 more answers
Other questions:
  • An object with 274 J of GPE is 140cm above the ground. What is its mass?
    12·1 answer
  • What causes a solar eclipse? Select all that apply.
    5·2 answers
  • A long, straight wire of radius R carries a steady current I that is uniformly distributed through the cross section of the wire
    11·1 answer
  • I NEED HELP SOLVING THIS!!!!!!!!!!!!
    8·1 answer
  • It took 3.5 hours for a train to travel the distance between two cities at a velocity
    5·1 answer
  • What's the name of first planet closest to the Sun?
    7·2 answers
  • Question 9 of 20
    10·1 answer
  • Write a message to Mr. Chang explaining why the groundwater heating system will warm the school more than the water heater syste
    11·2 answers
  • Cherise sets identical magnetic carts on two tracks. At the end of each track is a blue magnet that cannot move. Cherise can mov
    13·1 answer
  • An 80-kg football player travels to the right at 8 m/s and a 120-kg player on the opposite team travels to the left at 4.0 m/s.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!