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
Olenka [21]
3 years ago
7

A bicyclist travels 30 km in 2 hours, what is their average speed?

Physics
1 answer:
Mamont248 [21]3 years ago
3 0

Explanation:

average speed = total distance ÷ total time taken

=30÷2 = 15 km/h

You might be interested in
Need a little help here :(
Goshia [24]

Answer:

The output out be 200

Explanation:

Hope this helps :))

8 0
3 years ago
Read 2 more answers
What is -8,675,309.0 in scientific notation
Sindrei [870]
= 3.456 × 1011
(scientific notation)

= 3.456e11
(scientific e notation)

= 345.6 × 109
(engineering notation)
(billion; prefix giga- (G))

= 345600000000
(real number)
4 0
3 years ago
A potential difference of 53 mV is developed across the ends of a 12.0-cm-longwire as it moves through a 0.27 T uniform magnetic
Klio2033 [76]

Answer:

The angle between the magnetic field and the wire’s velocity is 19.08 degrees.                                            

Explanation:

Given that,

Potential difference, V = 53 mV

Length of the wire, l = 12 cm = 0.12 m

Magnetic field, B = 0.27 T

Speed of the wire, v = 5 m/s

Due to its motion, an emf is induced in the wire. It is given by :

\epsilon=Blv\sin\theta

Here,

\theta is the angle between magnetic field and the wire’s velocity

\sin\theta=\dfrac{\epsilon}{Blv}\\\\\sin\theta=\dfrac{53\times 10^{-3}}{0.27\times 0.12\times 5}\\\\\sin\theta=0.327\\\\\theta=19.08^{\circ}

So, the angle between the magnetic field and the wire’s velocity is 19.08 degrees.

8 0
3 years ago
The display of the aurora and the reflection of radio waves back to earth result from the _____.
Tasya [4]

The layer of electrically charged molecules and atoms which spans 40-250 miles above ground called ionosphere causes the display of the aurora and the reflection of radio waves back to earth.

8 0
3 years ago
Read 2 more answers
What is the distance to a star whose parallex is 0.1 sec?
Arte-miy333 [17]

Answer:

30.86\times 10^{13} km

Explanation:

Given the parallex of the star is 0.1 sec.

The distance is inversely related with the parallex of the star. Mathematically,

d=\frac{1}{P}

Here, d is the distance to a star which is measured in parsecs, and P is the parallex which is measured in arc seconds.

Now,

d=\frac{1}{0.1}\\d=10 parsec

And also know that,

1 parsec=3.086\times 10^{13} km

Therefore the distance of the star  is 30.86\times 10^{13} km away.

6 0
3 years ago
Other questions:
  • The Special Olympics raises money through "plane pull" events in which teams of 25 people compete to see who can pull a 74,000 k
    15·1 answer
  • After an eye examination, you put some eyedrops on your sensitive eyes. The cornea (the front part of the eye) has an index of r
    8·1 answer
  • You're riding a unicorn at 25 m/s and come to a uniform stop at a red light 20m away. What's your acceleration?
    5·2 answers
  • Which of the following is the most reasonable weight in units of newtons for an average adult?
    12·2 answers
  • If you stand on a bathroom scale,the spring inside the scale compresses 0.50 mm, and it tells you your weight is 700 N. Now if y
    10·1 answer
  • Match the following vocabulary terms to their definitions.1. the mass of a substance per unit volume density. 2. a proposed expl
    13·1 answer
  • A rope horizontally pulls a massive object lying on a surface with friction with a constant
    6·1 answer
  • How can I solve the following?
    14·1 answer
  • How are reflectivity and solubility related?
    12·2 answers
  • Suppose that a person gets hit by a bus moving at 30 mi/h with a 58,000 lbs of force in the direction of motion. If the mass of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!