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
11111nata11111 [884]
3 years ago
13

Determine the angular speed, in rad/s of:

Physics
1 answer:
ryzh [129]3 years ago
6 0

Answer:

Explanation:

A. The earth about its axis:

The earth makes one revolution in 24 hours. to know the number of revolutions per second it makes, we need to convert hours to seconds and the revolution to rad.

\frac{1 rev}{24hours}\times \frac{1 hr}{3600s}\times \frac{2\pi}{1}= 7.27 \times10^-5 rad/s

B. The minute hand of the clock makes one revolution in 60 minutes

To convert this to rad per second, we have

\frac{1 rev}{60mins}\times \frac{1 min}{60s}\times \frac{2\pi}{1}= 1.745 \times10^-3rad/s

C. The hour hand of  a clock completes one revolution in 12 hours

\frac{1 rev}{12hours}\times \frac{1 hr}{3600s}\times \frac{2\pi}{1}= 1.454 \times10^-4 rad/s

D. an egg beater turning at 300 rpm.

\frac{300 rev}{1minute}\times \frac{1 min}{60s}\times \frac{2\pi}{1}= 7.27 \times10^-5 rad/s=0.0218rad/s

You might be interested in
Can someone help me
cestrela7 [59]

Answer:

c

Explanation:

its because an atom needs more of the other particles than the number of electrons

7 0
3 years ago
U are asked to measure the amount of liquid held in a sports drink bottle.which is an appropriate unit of measurement? is grams,
saul85 [17]
Milliliters would be used to find the volume AKA amount of liquid
5 0
3 years ago
A transformer connected to a 110–(V) (rms) ac line is to supply 10.0 (V) (rms) to a portable electronic device. The load resista
spayn [35]

Answer:

Explanation:

a ) V( primary ) = 100 V

V( secondary ) = 10 V

No of turns ( secondary ) / No of turns ( primary ) = 10 / 100

= 1 / 10

b ) current in secondary

= volt ( secondary ) / resistance

= 10 /6 = 1.67 A

c )

Average power to secondary

= V  ( secondary ) x current ( secondary )

= 10 x 10 / 6

= 16.67 W

d )

Power in primary = power in secondary = 16.67 W

e ) current drawn by ac line ( primary )

Volt ( primary ) x current ( primary ) = power in primary

= 16.67

current ( primary )

= 16.67 / 100

= 0.167 A

5 0
3 years ago
The diagram below represents a flashlight that has been turned on. Which form of energy is being converted to electrical energy
Orlov [11]

Answer:

Chemical energy to electrical energy

Explanation:

In nature, there are several types of energy.

In this example (a flashlight being turned on), we have a conversion of energy from chemical energy to electrical energy. In fact:

- Chemical energy is the energy stored in the chemical bonds of the molecules of the substances used inside the battery. When the chemical reaction inside the battery occurs, this energy is liberated, and it is used to "push" the electrons along the circuit connected to the battery

- Electric energy is the energy associated to the motion of the electrons along the circuit of the flashlight; it is the energy associated to an electric current.

Moreover, in the flashlight the electric energy is then converted into two more types of energy: light energy (since the bulb in the flashlight produces light) and heat energy (because the flashlight also produces heat, so thermal energy).

3 0
3 years ago
A bare 4 AWG copper conductor Installed horizontally near the bottom or vertically, and within that portion of a concrete foun d
neonofarm [45]

Answer:

20 ft

Explanation:

This is the length where the direct contact could be used as ground electrode

4 0
3 years ago
Other questions:
  • If the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. What are
    11·1 answer
  • what is the electrical current in the conductor if it is connected to a voltage of 75V, with a current of 1A flowing through the
    5·1 answer
  • In Florida, the standard defined speed limit in a residential area is ____ mph.
    6·1 answer
  • A displacement vector is 34.0 m in length and is directed 60.0° east of north. What are the components of this vector? Northward
    15·1 answer
  • What is an ethical vacuum?
    8·2 answers
  • an airplane has a maximum velocity of 160km/h in still air. calculate its maximum velocity when it travels in air with a crosswi
    10·1 answer
  • Answer asap asap!<br><br><br><br> -----------------
    9·1 answer
  • An eraser is tied to a string swung in a horizontal circle. Identify the type of force which causes this object to travel along
    9·1 answer
  • The van accelerates at 2.2m/s^2. The force causing the acceleration is 5.5 kN. Calculate the mass of the van
    11·1 answer
  • A pendulum is lifted and released, causing the pendulum to oscillate in
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!