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
Darya [45]
3 years ago
7

What is the frequency of a wave that has a wavelength of 2000 meters and is traveling at 20 m/s?

Physics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

freqiency=velocity/wavelength

ief=20/2000=0.01hz

You might be interested in
Rogan claims that he can run 8 miles per hour. Use the speed formula to determine how many minutes it would take him to run one
MAXImum [283]

Answer:

he would have to run at a 7 and a half mile to get 8 miles in an hour

Explanation:

8 0
3 years ago
Read 2 more answers
A spring balance attempts to drag an object across a table, but the object does not move because of the force of friction acting
Luda [366]
Moving
.................................................
4 0
3 years ago
Human-Powered Flight Human-powered aircraft require a pilot to pedal, as in a bicycle, and produce a sustained power output of a
alukav5142 [94]

Answer:

# of Snickers bars 2

Explanation:

Power output= 0.30 HP

=0.3*746

= 0.30 HP (746 W=1.00 HP)

= 224 W

time required 2 h 49 m = 10140 seconds

Since power is work divided by time, then work is:

Work done by the jet = P*t

= 224 *(10140)

= 2.3 MJ (2.3 x 10^{6} J)

Converting MJ to Cal

2.3 MJ=549 Cal

# of Snickers bars = 549 Cal / 280 Cal

= 2.0 bars (rounded from 1.96)

8 0
3 years ago
Describe the earth's rotation on it axis
Lisa [10]
<span>Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.</span>
3 0
3 years ago
Read 2 more answers
A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil cont
EastWind [94]

Answer:

The number of turns in secondary coil is 4000

Explanation:

Given:

Current in primary coil I_{P} = 500 A

Current in secondary coil I_{S} = 25 A

Number of turns in primary coil N_{P} = 200

In case of transformer the relation between current and number of turns is given by,

     \frac{N_{S} }{N_{P}  } = \frac{I_{P} }{I_{S} }

For finding number of turns in secondary coil,

     N_{S} = \frac{I_{P} }{I_{S} }  N_{P}

     N_{S} = \frac{500}{25} \times 200

     N_{S} = 4000

Therefore, the number of turns in secondary coil is 4000

5 0
3 years ago
Other questions:
  • Select the best terms from the drop-down menus that fit the nuclear medicine descriptions.
    9·2 answers
  • "a grindstone of radius 4.0 m is initially spinning with an angular speed of 8.0 rad/s. the angular speed is then increased to 1
    5·2 answers
  • What are you experiencing if you close your eyes and feel as if you are not moving
    15·1 answer
  • A box slides down a frictionless plane inclined at an angle θ above the horizontal. The gravitational force on the box is direct
    11·1 answer
  • How do magnetic forces repel or attract?<br> Plz make it as simple as possible
    9·1 answer
  • If planet A is three times as far from planet C, then the period of its orbit will be __ times as long
    15·1 answer
  • Once out in space, the space shuttle needs to ________________ to keep going in the same direction at the same speed.
    12·2 answers
  • A 20.0-kg rock is sliding on a rough, horizontal surface at 8.00 m/s and eventually stops due to friction. The coefficient of ki
    8·2 answers
  • he "escape velocity from Earth (the speed required to escape Earth's gravity) is 2.5 x 10 miles per hour. What is this speed in
    14·1 answer
  • Help????????????????
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!