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
natulia [17]
3 years ago
6

The head of a rattlesnake can accelerate at 40 m/s2 in striking a victim. If a car could do as well, how long would it take to r

each a speed of 73 km/h from rest?
Physics
1 answer:
kvv77 [185]3 years ago
3 0

Answer:

Time taken will be 0.5069 sec    

Explanation:

Acceleration of the car is given a=40m/sec^2

Let the car starts from the rest so initial velocity of the car u=0m/sec

Final velocity v = 73 km/hr

So 7km/hr=\frac{73\times 5}{18}=20.277m/sec

From first equation of motion v = u+at

So 20.277=0+40\times t

t = 0.5069 sec

You might be interested in
Explain the difference between what Isaac Newton and Louis de Broglie would have to say about the momentum of a particle that is
pishuonlain [190]

Answer:

Explained

Explanation:

Newton would resort to the classical mechanics and say that the momentum of the particle that is moving with a constant velocity will be given by: momentum = mass x velocity

this approach will highlight the particle nature and will not be relativistic.

De-Broglie will say that the momentum of the particle is related to its associated matter wave and the relation between them is given by:

p = \frac{h}{\lambda}

where \lambda = wavelength of the matter wave associated to the particle, h = planck's constant

andp = \gamma\times mv

thus, this highlights the wave nature of the particle and is also relativistic.

6 0
3 years ago
Which of these has the greatest influence over how big a baby elephant will grow?
lina2011 [118]
Is this a multiple choice question? Or would you just like me to state generally the greatest influence over how big a baby elephant will grow ?
4 0
3 years ago
Suppose that the velocity (in meters per second) of a sky diver falling near the Earth's surface is given by the following expon
Mice21 [21]

Answer:

4.7 s

Explanation:

The complete question is presented in the attached image to this solution.

v(t) = 61 - 61e⁻⁰•²⁶ᵗ

At what time will v(t) = 43 m/s?

We just substitute 43 m/s into the equation for the velocity of the diver and solve for t.

43 = 61 - 61e⁻⁰•²⁶ᵗ

- 61e⁻⁰•²⁶ᵗ = 43 - 61 = -18

e⁻⁰•²⁶ᵗ = (18/61) = 0.2951

In e⁻⁰•²⁶ᵗ = In 0.2951 = -1.2205

-0.26t = -1.2205

t = (1.2205/0.26) = 4.694 s = 4.7 s to the nearest tenth.

Hope this Helps!!!

6 0
2 years ago
Which letter represents the location of the<br> resister in this diagram?<br> A<br> B<br> C<br> D
ololo11 [35]

Answer:

The letter B is the letter that represents the location of the resister in the diagram.

Explanation:

I hope it helped!Please mark brainliest and have a wonderful night! and day!!!!

5 0
3 years ago
Read 2 more answers
Describe the motion of the car as it moved across the floor
jok3333 [9.3K]
It moves horizontally across the floor.
6 0
3 years ago
Other questions:
  • How can people who live near rivers control flodding
    15·2 answers
  • What is the ratio of escape speed from earth to circular orbital speed? ignore air resistance.
    11·2 answers
  • On an ice rink, two skaters of equal mass grab hands and spin in a mutual circle once every 2.3 s . if we assume their arms are
    13·2 answers
  • Push-and-pull factors contribute to _____.<br> economics<br> politics<br> migration<br> education
    15·1 answer
  • What are scientific units for describing an object that is acclerating
    14·2 answers
  • The color of light emitted by a hot, solid object depends on ______.
    12·1 answer
  • A golf ball is sitting on a tee. The ball is struck with a golf club and flies
    15·2 answers
  • PLZ HELP 20 POINTS If you aimed all the various colored spot lights at the actor on a stage, the combined light would appear to
    7·2 answers
  • An astronaut is said to be weightless when he/she travels in a satellite. Does it mean that the earth does not attract him/her?​
    5·1 answer
  • “Which type of paper, construction paper or notebook paper, will make a paper airplane travel farther?”
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!