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
nasty-shy [4]
3 years ago
15

An initially motionless test car is accelerated uniformly to 120 km/h in 8.28 s before striking a simulated deer. The car is in

contact with the faux fawn for 0.815 s, after which the car is measured to be traveling at 71.0 km/h. What is the magnitude of the acceleration of the car before the collision
Physics
1 answer:
Anestetic [448]3 years ago
4 0

Answer:

The value is   a =  4.0 \ m/s^2

Explanation:

From the question we are told that  

  The velocity  is  a =  120 \  km/h =  [tex]\frac{120 *  1000}{3600} =  33.3 \  m/s[/tex]

  The time taken is t  =  8.28 \  s

    The  time taken for contact is  t_c  =  0.815 \  s

     The  velocity of the of the car after contact is v_c =  71.0 \  km/h = [tex]\frac{71 *1000}{3600} =  19.7 2 \  m/s[/tex]

From the equation of kinematics we have that  

       v =  u  + at

Here   u =  0 \ m/s  since the car is initially motionless

=>    33.3 =  0  + a *  8.28

=>    a =  4.0 \ m/s^2

You might be interested in
You take a trip to Oklahoma City. The turnpike between Tulsa and OKC
laiz [17]

speed_{avg} =  \frac{Σ\:distance}{ total\: time}

So, according to the question:

distance = 90 miles

time = 1h 45min + 15 min + 1h = 3h

Therefore:\\ speed_{avg} =  \frac{90}{3} mph \\  = \boxed {30 \: mph}

7 0
2 years ago
At what distance from a 1.00*10^-5 C charge will the electric potential be 10000 V? (Unit = m)​
OlgaM077 [116]

Answer:

9.0 m

Explanation:

Applying

V = kq/r......................... Equation 1

Where V = Electric potential, q = charge, r = distance, k = Coulomb's constant.

make r the subject of the equation

r = kq/V................... Equation 2

From the question,

Given: q = 1.00×10⁻⁵ C, V = 10000 V

Constant: k = 9.0×10⁹ N⋅m²/C²

Substitute these values into equation 2

r = (9.0×10⁹×1.00×10⁻⁵)/10000

r = 9.0 m

7 0
3 years ago
Read 2 more answers
Nanosecond and microsecond, which one is greater? ​
german
Microsecond is greater

A microsecond is 0.000 001 second and one thousand times longer than 1 nanosecond, which is 0.000 000 001 second.
3 0
3 years ago
Read 2 more answers
if it is known that the toggle clamp is a machine, what assumptions can be made about it? check all that apply. (you must provid
muminat

A toggle clamp is a device that you employ, often but not exclusively as part of a production process, to firmly place components or parts in place.

Explain about toggle clamp.

A toggle clamp's main characteristics are its rapid action and ability to be easily turned on and off by an operator. Toggle clamps also lock in place firmly. Because of this, toggle clamps are frequently employed in production lines where components need to be held firmly and quickly removed during routine manufacturing procedures.

Toggle clamps with standard or light action are often constructed from components of pressed steel that have been zinc-plated.

Depending on the setting in which you work, Stainless Steel is another alternative for Toggle Clamp production. Stainless steel toggle clamps are frequently used in regulated areas where hygiene is crucial, such as the food industry and the pharmaceutical business.

To know more about toggle clamps use link below:

brainly.com/question/20729246

#SPJ4

7 0
2 years ago
Electrical energy in motion is what type of energy ?
Aleonysh [2.5K]

Answer:

kinetic energy

Explanation:

Electrical energy is a type of kinetic energy caused by moving electric charges. The amount of energy depends on the speed of the charges – the faster they move, the more electrical energy they carry.

7 0
3 years ago
Read 2 more answers
Other questions:
  • When force is measured in newtons and distance is measured in meters, the work done is measured in
    9·2 answers
  • What is the momentum of a bowling ball with mass 5 kg and velocity 10 m/s
    12·2 answers
  • What is the smallest unit of a substance that keeps all of the physical and chemical properties of that substance?
    10·1 answer
  • Does anyone know what Base jump is?
    14·1 answer
  • David is driving a steady 30 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2
    9·1 answer
  • Define infer in science.
    12·1 answer
  • You walk 12 meters north, then 10 meters west. What is your displacement
    6·1 answer
  • How is Momentum Calculated ??​
    5·2 answers
  • 5. average A body sets off from rest with a constant acceleration of 8.0 m/s? What distance will it have covered after 3.0 s? 6.
    10·1 answer
  • What force causes an automobile to move.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!