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
Vesnalui [34]
3 years ago
8

A bicycle travels 15 km in 30 minutes. What it's is average speed in km per hour

Physics
2 answers:
rjkz [21]3 years ago
6 0

Answer:

30 km/h

Explanation:

Anestetic [448]3 years ago
4 0
Average speed is 0.5 km per hour
You might be interested in
Question 9
Anastasy [175]

nAnswer:

uyui

Explanation:

4 0
3 years ago
PLEASE HELP ASAP BEST ANSWER WILL BE MARKED BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
pantera1 [17]

Answer:

It is the 3 one

Explanation:

3 0
3 years ago
Question 5 (2 points)
Radda [10]

Answer:

Increase the work being done or decrease the time in which the work is completed

Explanation:

I got it right on the quiz i just took :)

5 0
3 years ago
J.J. Thomson theorized that, if an atom had all of its negatively charged
Bumek [7]

Answer:

C. Positively charged

Explanation:

The plum pudding model of the atom proposes by J. J. Thomson consisted of electrons which lay embedded as the raisins within a dough or soup that was positively charged. The electron was discovered by J. J. Thomson in 1897 through cathode ray tube experiments.

Based on the plum pudding model, if all the negatively charge electrons contained in an atom are removed, the material remaining will be the <em>positively charged</em> soup

6 0
3 years ago
2. Two long parallel wires each carry a current of 5.0 A directed to the east. The two wires are separated by 8.0 cm. What is th
Gre4nikov [31]

Answer:

The magnitude of magnetic field at given point = 5.33 × 10^{-5} T

Explanation:

Given :

Current passing through both wires = 5.0 A

Separation between both wires = 8.0 cm

We have to find magnetic field at a point which is 5 cm from any of wires.

From biot savert law,

We know the magnetic field due to long parallel wires.

⇒ B = \frac{\mu_{0}i }{2\pi R}

Where B = magnetic field due to long wires, \mu_{0} = 4\pi \times10^{-7}, R = perpendicular distance from wire to given point

From any one wire R_{1}  = 5 cm, R_{2}  = 3 cm

so we write,

∴ B = B_{1} + B_{2}

 B = \frac{\mu_{0} i}{2\pi R_{1} } +  \frac{\mu_{0} i}{2\pi R_{2} }

 B =\frac{ 4\pi \times10^{-7} \times5}{2\pi } [\frac{1}{0.03} + \frac{1}{0.05} ]

 B = 5.33\times10^{-5}  T

Therefore, the magnitude of magnetic field at given point = 5.33\times10^{-5} T

3 0
3 years ago
Other questions:
  • When water freezes, the density decreases and the bonds between molecules become stronger. Do you expect the speed of sound to b
    6·1 answer
  • At the top of a roller coaster you have 90j of potential energy and 10 j of kinetic energy at the bottom of the roller coaster y
    13·1 answer
  • An electromagnet wave has a wavelengths of 9.4E2 m which can also be written as 9.4X10^2 m. What is the frequency of this wave?
    8·1 answer
  • 102) Consider massive gliders that slide friction- free along a horizontal air track Glider A has a mass of 1 kg, aspeed of 1 m/
    5·1 answer
  • A ________ is a rigid layer that surrounds a plant cell, providing structural support.
    8·2 answers
  • Technician A says that low pressure smoke installed in the fuel system can be used to check for leaks. Technicians B says that n
    15·1 answer
  • A net force of 500 N acts on a 100 kg cart. What is the acceleration of the cart if the mass is doubled?
    11·1 answer
  • 1. In a series circuit, if one bulb goes out the other blubs will stay lit.
    8·2 answers
  • Giving me the points are enough <br>​
    6·1 answer
  • Elizabeth has two different electromagnets. Both electromagnets are connected to the same power source and are made of the same
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!