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
IRINA_888 [86]
2 years ago
14

What is the displacement of the particle in the time interval 7 seconds to 8 seconds? A. 0 meters B. 1.5 meters C. 3 meters D. 7

meters
Physics
2 answers:
Dafna11 [192]2 years ago
7 0

Answer:

It's 1.5 meters

Explanation:

plato

Dmitrij [34]2 years ago
4 0

Answer: B. 1.5 meters

Explanation:

You might be interested in
A 0.25 kg ball is suspended from a light 0.65 m string as shown. The string makes an angle of 31° with the vertical. Let U = 0 w
steposvetlana [31]

Explanation:

a) The height of the ball h with respect to the reference line is

h = L - L\cos{31°} = L(1 - \cos{31°})

so its initial gravitational potential energy U_0 is

U = mgh = mgL(1 - \cos{31°})

\:\:\:\:\:=(0.25\:\text{kg})(9.8\:\text{m/s}^2)(0.65\:\text{m})(1 - \cos{31})

\:\:\:\:\:=0.23\:\text{J}

b) To find the speed of the ball at the reference point, let's use the conservation law of energy:

\Delta{K} + \Delta{U} = 0 \Rightarrow K_0 + U_0 = K + U

We know that the initial kinetic energy K_0, as well as its final gravitational potential energy U are zero so we can write the conservation law as

mgL(1 - \cos{31°}) = \frac{1}{2}mv^2

Note that the mass gets cancelled out and then we solve for the velocity v as

v = \sqrt{2gL(1 - \cos{31°})}

\:\:\:\:\:= \sqrt{2(9.8\:\text{m/s}^2)(0.65\:\text{m})(1 - \cos{31°})}

\:\:\:\:\:= 1.3\:\text{m/s}

5 0
3 years ago
Read 2 more answers
What does ice, liquid water and water vapor all <br> have in common?
NikAS [45]
They all included water.
8 0
3 years ago
Read 2 more answers
use the distributive property to express 16+48. please explain if you can or work it out so I can see how you got your answer. t
Rom4ik [11]
(40+10)+(8+6)
Hope I helped you
6 0
3 years ago
In a collision that is not perfectly elastic, what happens to the mechanical energy of the system?
joja [24]
C.

Thanks me later, that's my answer.
5 0
3 years ago
At height h above the surface of Earth, the gravitational acceleration is What is h? Note: The radius of Earth is 6380 km.
rusak2 [61]

The acceleration of gravity is inversely proportional to
the square of the distance from Earth's center.

The acceleration of gravity is 9.8 m/s² on the Earth's surface ...
6380 km from the center.

If the acceleration of gravity at 'h' is 4.9 m/s² ... 1/2 of what it is
on the surface, then the distance from the center is

                 (6380 x √2) =  9,023 km  (rounded) ,

and 'h' is the distance above the surface

                     = (9,023 - 6,380) =  2,643 km  (rounded) .

4 0
3 years ago
Other questions:
  • To investigate seed growth in different levels of light, Jarrod covers seeds with soil in three different containers. He places
    7·2 answers
  • Gold is used to make a super thin layer on the visors of astronauts' helmets because of which property in particular?
    6·1 answer
  • What is the purpose of the coagulation step in water treatment?
    8·1 answer
  • The international space station orbits the earth at a distance of 6,783 km from the center of the earth it travels at 7.66 km/s.
    10·1 answer
  • True or false, As the frequency of an energy wave increases , so does its wavelength
    10·1 answer
  • What force is supplied by a jet’s engines when 7 x 106 Joules of work is required to move the plane down a 450 meter runway?
    10·1 answer
  • What are three ways in which people use microwaves
    7·2 answers
  • Georgia drops a brick from the top of an 80.0 m building. What is the velocity of the brick when it hits the ground?
    11·1 answer
  • THE MASS AND WEIGHT OF A BOX IS 25 Kg &amp; 245 N RESPECTIVELY WHEN ON EARTH. what is the value of mass and weight of the box wh
    6·1 answer
  • when people walked on the moon, they found that they could jump higher than theu could back on earth. why is this true?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!