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
Rus_ich [418]
3 years ago
6

Help pls, see picture. Will mark Brainliest

Physics
1 answer:
Leno4ka [110]3 years ago
4 0

Answer:

B

Explanation:

the graph shows the line going up (accelerating) and it isn't curving like d so it doesn't stop accelerating

Hope this helps :)

You might be interested in
An experiment is performed to determine how bats capture insects in the dark. A pair of microphones are set up on either end of
Masteriza [31]

Answer:

Explanation:

We shall apply Doppler's effect here .

original frequency = 79.79 kHz

apparent frequency due to movement of source ( bat ) = 81.63 Hz

Let the velocity of bat be v .

expression for apparent frequency can be given as follows

n = \frac{n_0V}{V-v}

n is apparent frequency , n₀ is original frequency , V is velocity of light and v is velocity of source of sound

Putting the values

81.63 = \frac{79.79\times 340}{340-v}

340-v = 332.33

v = 7.67 m /s

velocity of bat is 7.67 m /s .

7 0
3 years ago
you cover 10 meters in a time of 1 second .Is your speed the same if you cover 20 meters in 2 seconds?
IrinaVladis [17]

Definition:
                 Speed = (distance covered) / (time to cover the distance).

Speed in the first example = (10 meters) / (1 second) = 10 m/s .

Speed in the second example = (20 meters) / (2 seconds) = 10 m/s.

Apparently, it is.  This little exercise demonstrates it.

8 0
3 years ago
What Grade will you give my One Pager so Far?
AnnZ [28]

Answer:

98

Explanation:

7 0
3 years ago
Read 2 more answers
A driver drives for 30.0 minutes at 80.0 km/h, then 45.0 minutes at 100 km/h. She then stops 30 minutes for lunch. She then trav
bija089 [108]

Answer:

b) 68,9 km/h a) picture

Explanation:

In this problem, since velocity is expressed in km/h and time in minutes, we have to convert either time to hours or velocity to km/min. It is easier to use hours.

Using this formula we pass time to hours:

t_{hours}=t_{min}*\frac{1 h}{60 min}\\30min*\frac{1 h}{60 min}=0,5h\\45min*\frac{1 h}{60 min}=0,75h

Now we can plot speed vs time (image 1). The problem says that the driver uses constant speed, so all lines have to be horizontal.

Using the values of the speed we calculate the distance in each interval

d=v*t\\80km/h*0.5h=40km\\100km/h*0.75h=75km

Using these values and the fact that she was having lunch in the third one (therefore stayed in the same position), we plot position vs time, using initial position zero (image 2, distance is in km, not meters).

Finally, we compute the average speed with the distance over time:

v_{average}=\frac{155km}{2.25h}=68.9km/h

6 0
3 years ago
A 2000kg suv accelerates from rest at a rate of 3.00m/s^2. The total amount of force resisting its motion 1500N. How much force
choli [55]

The total force that the SUV exerts is:

F = 2000 kg * 3 m/s^2

F = 6000 N

 

Since a resisting force amounting to 1500 N is exerted, then the force exerted by the SUV tires is:

F tire = 6000 N – 1500 N

F tire = 4500 N

7 0
3 years ago
Other questions:
  • Is intelligent design science
    5·1 answer
  • the lenses in a students eyes have arefractive power of 52. 0 diopters when she is able to focus on the board if the distance be
    7·1 answer
  • A ball is thrown into the air at an angle. What is the instantaneous velocity of this ball in the vertical direction at the top
    15·1 answer
  • What is a watt a unit of?<br> power<br><br> distance<br><br> time<br><br> light
    6·2 answers
  • Which statements accurately describe density? Check all that apply.
    13·1 answer
  • A slender rod 100.00cm long is used as a meter stick. Twoparallel axes which are perpendicular to the rod are considered.The fir
    15·1 answer
  • Can you find the density of water? How would you do it?
    11·1 answer
  • When only ________ acts on an object's mechanical energy is conserved.
    6·2 answers
  • The communications system has evolved greatly in the last 20 years. People are now able to communicate more quickly and easily u
    13·2 answers
  • Please help me out i'm so depressed and such a failure
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!