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
Alex
3 years ago
12

Please help! Average speed. Show work!

Physics
2 answers:
Licemer1 [7]3 years ago
8 0

Answer:

<h2>3.78 m/s</h2>

Option D is the right option.

solution,

Distance travelled=340 metre

Time taken= 1.5 minutes ( 1 minute=60 seconds)

=1.5* 60

=90 seconds

Now,

Average speed:

\ \frac{distance \: travelled \: }{time \: taken}  \\  =  \frac{340 \: m}{90 \: s}  \\  = 3.78 \: metre \: per \: second

Hope this helps...

Good luck on your assignment..

KiRa [710]3 years ago
3 0

Answer:

3.78 m/s

Explanation:

Recall that the formula for average speed is given by

Speed = Distance ÷ Time taken

Where,

Speed = we are asked to find this

Distance = given as 340m

Time taken = 1.5 min = 1.5 x 60 = 90 seconds

Substituting the values into the equation:

Speed = Distance ÷ Time taken

= 340 meters  ÷ 90 seconds

= 3.777777 m/s

= 3.78 m/s (round to nearest hundredth)

You might be interested in
Ferdinand the frog is hopping from lily pad to lily pad in search of a good fly
loris [4]

Answer: 36.86\°

Explanation:

According to the described situation we have the following data:

Horizontal distance between lily pads: d=2.4 m

Ferdinand's initial velocity: V_{o}=5 m/s

Time it takes a jump: t=0.6 s

We need to find the angle \theta at which Ferdinand jumps.

In order to do this, we first have to find the <u>horizontal component (or x-component)</u> of this initial velocity. Since we are dealing with parabolic movement, where velocity has x-component and y-component, and in this case we will choose the x-component to find the angle:

V_{x}=\frac{d}{t} (1)

V_{x}=\frac{2.4 m}{0.6 s} (2)

V_{x}=4 m/s (3)

On the other hand, the x-component of the velocity is expressed as:

V_{x}=V_{o}cos\theta (4)

Substituting (3) in (4):

4 m/s=5 m/s cos\theta (5)

Clearing \theta:

\theta=cos^{-1} (\frac{4 m/s}{5 m/s})

\theta=36.86\° This is the angle at which Ferdinand the frog jumps between lily pads

4 0
3 years ago
Explain why the direction of the south equatorial current changes
Allisa [31]
One scientist believe that the ozone layers of the earth had been weakening and waters current changes directly over 5 to 7 months.    hope that helped
8 0
3 years ago
What is the ratio of the intensities of an earthquake P wave passing through the Earth and detected at two points 14 km and 49 k
Molodets [167]

Answer:

\dfrac{I_1}{I_2}=12.25

Explanation:

r_1 = 14 km

r_2 = 49 km

Intensity of a wave is inversely proportional to distance

I\propto \dfrac{1}{r^2}

So,

\dfrac{I_1}{I_2}=\dfrac{r_2^2}{r_1^2}\\\Rightarrow \dfrac{I_1}{I_2}=\dfrac{49^2}{14^2}\\\Rightarrow \dfrac{I_1}{I_2}=12.25

The ratio of the intensities is \dfrac{I_1}{I_2}=12.25

6 0
3 years ago
Hydroelectric power plants can generate huge amounts of electricity. Which of these statements best describes the impact of a hy
Zarrin [17]
The best answer is that it reduces the level of ground water
7 0
3 years ago
Read 2 more answers
If an insulator replaces a conductor in an electrical circuit, the flow of electrons in the circuit will be
Degger [83]
The flow of electrons in the circuit will be less.
6 0
3 years ago
Other questions:
  • The ocean helps absorb: hydrogen carbon dioxide nitrogen sulfur dioxide
    7·2 answers
  • Litmus paper is made from water-soluble dyes which are extracted from lichens. This paper is used as an acid-base indicator. Whi
    6·2 answers
  • Which statement is true about the force of gravity?
    9·2 answers
  • From left to right across a period in the periodic table, elements become less and more in their properties
    13·1 answer
  • The "lead" in pencils is a graphite composition with a Young’s modulus of about 1×1010N/m21×1010⁢N/m2. Calculate the change in l
    5·1 answer
  • A bullet of mass 11.1 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.01 kg,
    5·1 answer
  • why is a person who lives in the city able to sleep through the sounds of traffic but awaken to the soft sound of bird singing
    5·2 answers
  • HEY CAN ANYONE PLS ANSWER DIS!!!!!!
    6·1 answer
  • Which element has a full valence shell of electrons
    13·1 answer
  • How does electric force affect an atom?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!