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
aniked [119]
3 years ago
11

A man travels 15 km east before turning around and heading 5 km west. What is his displacement?

Physics
2 answers:
dimaraw [331]3 years ago
8 0
The answer is C. 10Km east
navik [9.2K]3 years ago
6 0

Answer:

10 km East

Displacement is the shortest path between two points.

You might be interested in
What type of rays would you expect to be used frequently at a hospital to make medical diagnoses?
Bess [88]
X rays because to see your bones
7 0
3 years ago
A record turntable rotates through 5.0 rad in 2.8 s as it is accelerated uniformly from rest. What is the angular velocity at th
Usimov [2.4K]

Answer:

\omega_f = 3.584\ rad/s

Explanation:

given,

turntable rotate to, θ = 5 rad

time, t = 2.8 s

initial angular speed  = 0 rad/s

final angular speed = ?

now, using equation of rotational motion

\theta = \omega_i t + \dfrac{1}{2}\alpha t^2

5 = 0+ \dfrac{1}{2}\alpha\times 2.8^2

\alpha= \dfrac{10}{2.8^2}

       α = 1.28 rad/s²

now, calculation of angular velocity

\omega_f = \omega_i + \alpha t

\omega_f =0 +1.28\times 2.8

\omega_f = 3.584\ rad/s

hence, the angular velocity at the end is equal to 3.584 rad/s

4 0
3 years ago
Experiments using "optical tweezers" measure the elasticity of individual DNA molecules. For small enough changes in length, the
GalinKa [24]

Answer:

Spring constant, k = 0.3 N/m

Explanation:

It is given that,

Force acting on DNA molecule, F=1.5\ nN=1.5\times 10^{-9}\ N

The molecule got stretched by 5 nm, x=5\times 10^{-9}\ m

Let k is the spring constant of that DNA molecule. It can be calculated using the Hooke's law. It says that the force acting on the spring is directly proportional to the distance as :

F=-kx

k=\dfrac{F}{x}

k=\dfrac{1.5\times 10^{-9}\ N}{5\times 10^{-9}\ m}

k = 0.3 N/m

So, the spring constant of the DNA molecule is 0.3 N/m. Hence, this is the required solution.

8 0
3 years ago
Which is an example of how the body maintains homostasis
strojnjashka [21]

Answer:

lemme see

Explanation:

5 0
2 years ago
Read 2 more answers
O que é multifásicos?
Oksana_A [137]

Answer:

i would like to help you but I can't help you i don't understand the question and i don't speak Spanish

4 0
3 years ago
Other questions:
  • A 0.10kg hockey puck decreases it’s speed from 40m/s to 0m/s in 0.025s. Determine the force that it experiences
    8·1 answer
  • What is the velocity of a wave with a frequency of 760Hz and a wavelength of 0.45m?
    9·1 answer
  • In the equation for centripetal force, which expression represents the centripetal acceleration of the object? mv2 StartFraction
    14·2 answers
  • "A positively-charged particle is held at point A between two parallel metal plates. The plate on the left has a net positive ch
    7·1 answer
  • To understand the formula representing a traveling electromagnetic wave.Light, radiant heat (infrared radiation), X rays, and ra
    12·1 answer
  • in a Mercury thermometer the level of Mercury Rises when its bulb comes in contact with a hot object what is the reason for this
    11·1 answer
  • Please help me!!!.......​
    5·1 answer
  • Major storms get their energy from WATER VAPOR in the air. Which step of the water cycle would give energy to a storm
    6·1 answer
  • What is the stretch when you pull with a force of 2.3 N on a spring with a spring constant of 19 N/m?
    15·1 answer
  • Helpp I'll give brainliest smth
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!