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
Ray Of Light [21]
3 years ago
12

How much Tim in minutes will it take a car driving at 90km/hr to travel 27 kilometers

Physics
1 answer:
astraxan [27]3 years ago
6 0

Answer:

18min

Explanation:

v=d/t

t=d/v= 27/90 =0.3hrs =18min

You might be interested in
Nuclear power plants produce useful energy by controlling the process of?
Mandarinka [93]
Nuclear fusion is thed answer

5 0
3 years ago
Read 2 more answers
Two remote control cars with masses of 1.16 kilograms and 1.98 kilograms travel toward each other at speeds of 8.64 meters per s
Black_prince [1.1K]

The initial momentum of the system can be expressed as,

p_i=m_1u_1+m_{2_{}}u_2

The final momentum of the system can be given as,

p_f=m_1v_1+m_{2_{}}v_2

According to conservation of momentum,

p_i=p_f

Plug in the known expressions,

\begin{gathered} m_1u_1+m_2u_2=m_1v_1+m_2v_2 \\ m_2v_2=m_1u_1+m_2u_2-m_1v_1 \\ v_2=\frac{m_1u_1+m_2u_2-m_1v_1}{m_2} \end{gathered}

Initially, the second mass move towards the first mass therefore the initial speed of second mass will be taken as negative and the recoil velocity of first mass is also taken as negative.

Plug in the known values,

\begin{gathered} v_2=\frac{(1.16\text{ kg)(8.64 m/s)+(1.98 kg)(-3.34 m/s)-(1.16 kg)(-2.16 m/s)}}{1.98\text{ kg}} \\ =\frac{10.02\text{ kgm/s-}6.61\text{ kgm/s+}2.51\text{ kgm/s}}{1.98\text{ kg}} \\ =\frac{5.92\text{ kgm/s}}{1.98\text{ kg}} \\ \approx2.99\text{ m/s} \end{gathered}

Thus, the final velocity of second mass is 2.99 m/s.

3 0
1 year ago
Greg is boiling water on the stove for some noodles. what object can he safely hold while draining the water from the noodles af
zmey [24]
In order for Greg to safely drain the water out of the noodles, he should use potholders or any thing that is does not conduct heat or transfer heat. Some pots are also equipped with handles that are made of plastics for safely transferring of its content to another container. 
5 0
3 years ago
Hold a pencil in front of your eye at a position where its blunt end just blocks out the Moon.
Valentin [98]

Answer:

D = 3.55 \times 10^6 m

Explanation:

Light rays coming from moon is blocked by the pencil

so as per figure we know that angle subtended by pencil and angle subtended by moon must be same

so we have

Angle = \frac{Arc}{Radius}

so we have

\frac{D}{3.8 \times 10^8 m} = \frac{0.7 cm}{75 cm}

so we have

D = 3.55 \times 10^6 m

4 0
3 years ago
SOMEONE HELP PLEASE ASAP I BELIEVE THE ANSWER IS C OR D
Serhud [2]
You are correct the answer would be C

hope i helps
4 0
3 years ago
Other questions:
  • You are the pilot of a spaceship (9.1835 × 104 kg) and you enter into elliptical orbit around an uncharted planet, Rosseforp. At
    14·1 answer
  • Here the file attached
    10·2 answers
  • What causes air to become less dense and rise?
    5·1 answer
  • What is a GOOD AND DETAILED introduction on a thermos. will be awarded 25 points im desperate
    11·1 answer
  • I have been given this question
    9·1 answer
  • A 55 year old woman is awakened by an excruciating pain that radiates from her right abdomen to her flank on the same side
    9·1 answer
  • A force Ě = F, î + Fy h acts on a particle
    11·1 answer
  • Anybody from India ?​
    7·2 answers
  • How long does it take light to reach Earth from an object on light-year away?
    5·1 answer
  • Q3, A ball of mass 5.0 kg moving with a Velocity of 10.0 ms collides
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!