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
drek231 [11]
3 years ago
14

An ant travels 2.78 cm [W] and then turns and travels 6.25 cm [S 40 degrees E]. What is the ant's total displacement?

Physics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0
Answer is 6.84 approx
reason:-
            (2.78^2+6.25^2)^1/2=6.84 approx
You might be interested in
How dose the hypothesis and observations connect
gavmur [86]

Answer:

<em>In the observational method, the hypothesis is constructed to explain the observations. A simple one may be a generalization of the observations. A more complex hypothesis may postulate a relationship between the events, and may even be used to predict other observations.</em>

7 0
2 years ago
How do I conduct electricity
slavikrds [6]

Every material in the world can be defined in terms of how well it conducts electricity.   Certain things, such as cold glass, never conduct electricity. They're known as insulators.  Materials which do conduct electricity, like copper, are called conductors.  In the middle are materials known as semiconductors, which don't conduct as well as conductors, but can carry current.  Last, are materials called superconductors, which when brought down to very low temperatures  turn into superhighways of current -- they conduct electricity without any resistance whatsoever.



6 0
3 years ago
If a ball is thrown In the air with a velocity 48 ft/s. Its height in feet t seconds later is given by y =48t-16t2. (Round your
Marizza181 [45]

Answer:

(a)-24 ft/s

(b)-16.8 ft/s

(c)-16.16 ft/s

(d) -16 ft/s

Explanation:

The initial velocity, v=48 ft/s

(a)

The average velocity when t=2 and 0.5 seconds later hence t=2.5 is given by

\frac {f(2)-f(2.5)}{2-2.5}=\frac {[48(2)-16(2)^{2}]-[48(2.5)-16(2.5)^{2}]}{2-2.5}=\frac {32-20}{-0.5}=-24 ft/s

(b)

The average velocity when t lasts 0.05 second then

t=2 and t=2.05 is given by

\frac {f(2)-f(2.05)}{2-2.05}=\frac {[48(2)-16(2)^{2}]-[48(2.05)-16(2.05)^{2}]}{2-2.5}=\frac {32-31.16}{-0.05}=-16.8 ft/s

(c)

The average velocity when t=2 and lasts 0.01 s then t=2.01 then is determined by

\frac {f(2)-f(2.01)}{2-2.01}=\frac {[48(2)-16(2)^{2}]-[48(2.01)-16(2.01)^{2}]}{2-2.01}=\frac {32-31.8384}{-0.01}=-16.16 ft/s

(d)

As the intervals get small, that is to imply from 0.05 s later to 0.01 s later as seen in parts a to c, the values are getting small and closer to 16 hence the instantaneous velocity at t=2 is -16 ft/s

6 0
3 years ago
Henrietta is going off to her physics class, jogging down the sidewalk at a speed of 2.55 m/s . Her husband Bruce suddenly reali
adoni [48]

Answer:

u = 9.2 m/s

Explanation:

Second equation of motion:

s = u t + 0.5 a t²

The time in which book would fall 35.4 m downwards is:

Initial velocity is zero in vertical direction.

35.4  = 0 + 0.5 (9.8)t²

⇒ t² = 7.22 ⇒t = 2.68 s

The horizontal distance covered by Henrietta in (7.00 s+ 2.68 s):

x = 2.55 m/s × 9.68 s = 24.684 m

The initial velocity with which the book must be thrown in order for Henrietta to catch.

24.684 m = u ( 2.68 s)

u = 9.2 m/s

5 0
3 years ago
A sample of Hydrogen-3 has a half-life of 12 years and contains 2400 atoms. Calculate the number of atoms that was present in th
HACTEHA [7]

Answer:

38400 atoms

Explanation:

The half - life is the time taken for a radioactive material to decay by half. When the half-life time elapses, a material becomes halved.  

  Since the half-life is 12yrs;

    number of atoms  now = 2400atoms

Unknown:

Number of atoms in the sample 48yrs ago;

Solution:

   In 48yrs, we have 4 half-life counts:

         Last 12yrs;

                     2(2400) = 4800atoms

       Last 24yrs

                       2(4800) = 9600 atoms

      Last 36yrs

                    2(9600) = 19200 atoms

       Last 48yrs

                    2(19200) = 38400 atoms

8 0
2 years ago
Other questions:
  • At the end of a bike ride up a mountain, Chris was at an elevation of 500 meters above where he started. If Chris's mass is 60kg
    8·1 answer
  • Newton began his academic career in 1667 for how long was he a working scientists was he a very productive scientist
    5·1 answer
  • The 480 g bar is rotating as shown what is the angular momentum of the bar about the axle?
    10·1 answer
  • A mass m = 75 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 19.2 m and finally
    8·1 answer
  • What factors would change the force of friction?​
    8·1 answer
  • what does being diplomatic mean? *complying with instructions *having biased feelings or opinions created without adequate knowl
    9·2 answers
  • Compute the kinetic energy of a proton (mass 1.67×10−27kg ) using both the nonrelativistic and relativistic expressions for spee
    14·1 answer
  • a net force of 1,800 N is applied to a boat causing it to accelerate at 1.5 m/s^2. what is the mass of the boat?
    7·1 answer
  • Getyour pointsssssssssssssssssssssss
    9·2 answers
  • 3.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!