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
juin [17]
3 years ago
9

an alligator crawls 25m to the left with an average velocity of -1.2m/s. how many seconds did the alligator crawl?

Physics
1 answer:
Crank3 years ago
5 0
It will take 21s for yhe alligator to crawl that distance. Reported answer contains 2 Significant Figures.

You might be interested in
Which statement describes what most likely occurs when a compass is placed next to a simple circuit made from a battery, a light
aleksley [76]
D. A magnetic field created by the electric current causes the compass needle to move.
6 0
2 years ago
Read 2 more answers
→15 points← Waiting for his new game to come in the mail, Billy races up the stairs in 3 seconds from the basement whenever he h
stich3 [128]

Answer:

500 Newton’s 3 meters high

Explanation:

3 0
2 years ago
PLEASE HELP ASAP!! <br><br> What do you think engineers could do to prevent sinkholes in Florida?
padilas [110]
I think they can use more durable materials.
8 0
2 years ago
Explain Rutherford's experiment?
Ipatiy [6.2K]

Answer:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

Explanation:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

When this alpha particles were made to strike the aluminum foil, some passed through the foil, some were reflected and speed others changed.

The ones reflected encountered heavier particle known as the nucleus, preventing them from passing through it. The whole observations indicated that atom is not is uniformly charged sphere as proposed by J.J Thomson.

Rutherford proposed new model known as the Planetary model of atom, which described atom as containing a nucleus which is revolved by electron, just like planets revolve round the sun. And this nucleus contains opposite charge to electron which is proton, to balance the motion.

7 0
3 years ago
g An astronaut must journey to a distant planet, which is 189 light-years from Earth. What speed will be necessary if the astron
Butoxors [25]

Answer:

The value is v  =  2.999 *10^{8} \  m/s

Explanation:

From the question we are told that

   The time taken to travel to the planet from earth is t = 189 \ light-years

    The  time to be spent on the ship is  t_{s} =  12 \  years

Generally speed can be obtained using the mathematical relation represented below

       t_s  =  2 * t *  \sqrt{1 -  \frac{v^2}{c^2 } }

The 2 in the equation show that the trip is a round trip i.e going and coming back

=>    12 =  2 * 189 *  \sqrt{1 -  \frac{v^2}{(3.0*10^{8})^2 } }

=>     v  =  2.999 *10^{8} \  m/s

5 0
3 years ago
Other questions:
  • How does the theory of natural selection explain the diversity of life?
    10·1 answer
  • I need to know what this means
    7·1 answer
  • How are the helium atoms in this model different from real helium atoms?
    14·2 answers
  • Which of the following values has the greatest number of significant figures? Justify your answer?
    8·1 answer
  • How to calculate kinetic energy of a projectile at the highest point of a projectile?
    10·2 answers
  • Which substance is a heterogeneous mixture?
    9·1 answer
  • How to calculate the average value of the indirect measurements of KE
    6·1 answer
  • which best describes the difference between speed and velocity? A) velocity is instantaneous ,B) speed is a vector quantity
    14·1 answer
  • Q/C An undersea earthquake or a landslide can produce an ocean wave of short duration carrying great energy, called a tsunami. W
    10·1 answer
  • Romeo and Juliet are sitting on a balcony 1.5 meters apart. If Romeo has a mass of 61.6 Kg and Juliet has a mass of 48.8 kg. Wha
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!