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
alina1380 [7]
2 years ago
14

Jason while driving on Kukum highway at 70 m.s – 1 seeing the traffic light turn red, he applies the brake and comes to rest in

a time of 2 seconds. What is his deceleration?
Physics
1 answer:
strojnjashka [21]2 years ago
6 0

Answer:

35 m/s^2

Explanation:

Decceleration =   change in velocity / change in time

                        =  ( 70 m/s ) / 2 seconds = 35 m/s^2

   DEcceleration = 35 m/s^2

       Jason's speed changes by  - 35 m/s^2

You might be interested in
How many pounds is a 1 pound rock?
RideAnS [48]

Answer: 1 pound.

Explanation:

6 0
2 years ago
Read 2 more answers
In a vacuum, two particles have charges of q1 and q2, where q1 = +3.11 μC. They are separated by a distance of 0.241 m, and part
lesya [120]

Answer:

Charge of particle 2, q_2=-7.13\ \mu C

Explanation:

Given that,

Charge 1, q_1=3.11\ \mu C=3.11\times 10^{-6}\ C

The distance between charges, r = 0.241 m

Force experienced by particle 1, F = 3.44 N

We need to find the magnitude of electric charge 2. It can be calculated using formula of electrostatic force. It is given by :

F=k\dfrac{q_1q_2}{r^2}

q_2=\dfrac{Fr^2}{kq_1}

q_2=\dfrac{3.44\times (0.241)^2}{9\times 10^9\times 3.11\times 10^{-6}}

q_2=7.13\times 10^{-6}\ C

or

q_2=7.13\ \mu C

So, the magnitude of electric charge 2 is q_2=7.13\ \mu C. Since, the force is attractive then the magnitude of charge 2 must be negative.

5 0
3 years ago
Solar winds have an influence all the way to about 160 AU from the Sun. About how many kilometers is that?
Mumz [18]

Answer: A. 24,000,000,000 km

Explanation: An Astronomical Unit  commonly abbreviated as AU is the average distance between Earth and the Sun and is about 150 million kilometers.

Astronomical unit is mainly used to measure distances within our solar system.

1 AU is equal to  150\times 10^6 km

Thus 160 AU  is equal to \frac{150\times 10^6}{1}\times 160=24000\times 10^6km=24000000000km

4 0
2 years ago
Read 2 more answers
A lamp in a child's Halloween costume flashes based on an RC discharge of a capacitor through its resistance. The effective dura
Genrish500 [490]

Power of the lamp = (voltage) x (current)

0.62 watt = (3.0 v) x (current)

Current = (0.62 watt) / (3.0 volt)

Current = 0.207 Ampere

Charge = (current) x (time)

Charge = (0.207 Amp) x (0.32 sec)

<em>a).  Charge = 0.066 Coulomb</em>

Energy discharge through the lamp = (charge) x (voltage)

Energy = (0.66 C) x (3.0 volt)

Energy = 0.1984 Joule

Energy stored in a capacitor = (1/2) (Capacitance) (voltage²)

0.1984 Joule = (1/2) (Cap) (3.0 v)²

Cap = 2 x 0.1984 / 9

<em>b).  Cap = 0.044 Farad</em> (yikes !)

Resistance of the lamo = (voltage) / (current)

Resistance = (3.0 volt) / (0.207 Amp)

<em>c).  Resistance = 14.49 Ω</em>

All of this feels OK except for that ridiculous 44,000 μF, 3v capacitor.  Sadly, I have checked my work without finding an error, and I am too lazy to check it again.  So I'll call this my final answer, and leave it to some better Brainly person to find where I went wrong.

6 0
3 years ago
In your own words, explain why light can travel with or without a medium
Darya [45]
I'm not really sure if it's completely right but I was taught that light can travel without a medium because light is composed of quanta called photons, and since it is a property of photons that they don't require a medium of transmission
( sorry if that doesn't make sense )
7 0
3 years ago
Other questions:
  • If different groups of scientist have access to the same data, how can they draw different conclusions?
    14·2 answers
  • How much work is done when you push a crate horizontally with 150 N across a 13-m floor
    7·1 answer
  • Which three of these statements about current and voltage in a series circuit are true ?
    7·1 answer
  • a pillow , a textbook and a paper airplane are dropped from the top of a tall building at the same time. consider what you have
    13·2 answers
  • Two concrete spans of a 380 m long bridge are
    15·1 answer
  • You serve a volley ball with a mass of 1.5 kg. The ball leaves your hand at 15m/s. The ball has how much kinetic energy?
    8·1 answer
  • Pls help I’m being timed!!
    9·2 answers
  • Susan is quite nearsighted; without her glasses, her far point is 34 cm and her near point is 17 cm . Her glasses allow her to v
    14·1 answer
  • A 17Kg sitting on a shelf has a potential energy of 350J. How high is the shelf? Round your number to the nearest whole number
    8·1 answer
  • 3. Two fans blow at 5 ms^-1 in a easterly direction and 8ms^-1 in a Northerly
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!