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
sasho [114]
3 years ago
9

9. A car accelerates from 3.5 m/s to 17 m/s in 4.5 seconds. Find the acceleration of the car in m/s2.

Physics
1 answer:
Citrus2011 [14]3 years ago
8 0
The answer is -3 m/s2
You might be interested in
Marcia flew her ultralight plane to a nearby town against a head wind of 15 km/h in 2h 20 min. the return trip under the same wi
insens350 [35]

Let the distance between the towns be d and the speed of the air be s.

distance = speed * time

convert the minutes time into hours.

When flying into the wind, ground speed will be air speed MINUS wind speed, hence the against the wind trip is described by:

d

s−15

=

7

3

return trip is then :

d

s+15

=

7

5

Cross-multiplying both we get the two-variable system:

3d=7∗(s−15)5d=7∗(s+15)

3d=7s−1055d=7s+105

subtract first equation from second equation we get

2d=210d=105km

Substitute the value of d in the above equations for s.

5∗105=7s+1057s=420s=60km/hr

8 0
3 years ago
Read 2 more answers
The amount of water on earth now is the same as when dinosaurs existed. True or false? PLEASEEEEE HELPPPPPP
Mnenie [13.5K]

Answer: True

Explanation: Because of the way this water cycle has always circulated our planet, there is indeed a chance that the water in your glass is the same water that thirsty dinosaurs were drinking about 65 million years ago

5 0
2 years ago
Read 2 more answers
Which term, taken from the celestial sphere, gives its name to a.m. and p.m.?
DaniilM [7]

Options are. Zenith, Great circle, Equinox, or Meridan
3 0
2 years ago
A small flashlight bulb provides a resistance of 3 Ω to the 300 mA current that runs through it. Determine the voltage of the ba
Contact [7]

V=IR

V= 0.3 x 3

V= 0.9V

3 0
3 years ago
With speeds up to 90 miles per hour, what is the fastest sport on ice?.
Eddi Din [679]

Answer:

Luge

Explanation:

8 0
2 years ago
Other questions:
  • Calculate the Force of Gravity acting on an object that has a mass of 1.3 kg. The object is on Earth so use 9.8m/s2 for the acce
    6·1 answer
  • Technician A says that low compression on a single cylinder will cause an engine not to start. Technician B says that low compre
    14·1 answer
  • Which of the following describes electric change?
    14·2 answers
  • Efficiency is the ratio of output work to input work, expressed as a percentage. Light bulbs put out less light energy than the
    8·2 answers
  • Which statement BEST explains the model?
    13·1 answer
  • (ANSWER NOW PLS) A diver with a mass of 90kg is at a height of 10m, and he has not jumped off of the board yet (v=0m/s) what's h
    12·1 answer
  • Explains this: a light source can emit more than one type of light
    8·1 answer
  • Answer the attached question.<br>No Spam!<br>⚔️⚔️⚔️​
    13·1 answer
  • Please help I need this fast
    10·2 answers
  • A large stone block is to be part of a harbour wall. The block is supported beneath the surface of the sea by a cable from a cra
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!