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
uysha [10]
3 years ago
15

Hyperkinetic means too little movement true or false?

Physics
1 answer:
jarptica [38.1K]3 years ago
4 0

Answer:

false

Explanation:

You might be interested in
Explain what physicists mean when they say that the de Broglie wavelength relates to the probability distribution wave function.
Ksju [112]

Answer:

Because it unites particle and wave nature.

Explanation:

De Broglie wavelength can be defined as the,

\lambda =\frac{h}{mv}

Here, h is planks constant, m is the mass of electron, v is the velocity of electron.

Since the de Broglie wavelength can behave like the photon wavelength with respect to the  momentum

It unites particles and waves nature ,so De Broglie wavelengths is probability waves associated with the wave function according to physicists.

7 0
3 years ago
Velocity and acceleration are both vectors; they have a direction. What is thedirection of the velocity and acceleration vectors
just olya [345]

Answer:

d. Both A & C

Explanation:

- The velocity of the ball is a vector, whose magnitude indicates its rate of change of position, and it has a direction. In this case, the ball is moving upward, therefore the direction of motion is upward, so the direction of the velocity is upward as well.

- The acceleration of the ball is a vector, whose magnitude indicates the rate of change of the velocity. The direction of the acceleration is:

-- positive if the the magnitude of the velocity is increasing

-- negative if the magnitude of the velocity is decreasing

For a ball thrown upward, the acceleration is given by the acceleration of gravity, g=9.8 m/s^2. This acceleration points downward, and it is constant during the entire motion. In particular, it does not change direction, as it is always directed downward. Therefore, the acceleration of the ball is downward.

So, the correct answer is

d.Both A & C

Since A and C are both true:

a.The velocity vector is directed upward.

c.The acceleration is directed downward.

3 0
3 years ago
A ball is launched at an angle of 10 degrees from a 20 meter tall building with a speed of 4 m/s. How long is the ball in the ai
shutvik [7]

Answer:

d) None of the above

Explanation:

v_{o} = inituial velocity of launch = 4 m/s

θ = angle of launch = 10 deg

Consider the motion along the vertical direction

v_{oy} = initial velocity along vertical direction = 4 Sin10 = 0.695

m/s

a_{y} = acceleration along the vertical direction = - 9.8 m/s²

y = vertical displacement = - 20 m  

t = time of travel

using the equation

y=v_{oy} t+(0.5)a_{y} t^{2}

- 20 = (0.695) t + (0.5) (- 9.8) t²

t = 2.1 sec

consider the motion along the horizontal direction

x = horizontal displacement

v_{ox} = initial velocity along horizontal direction = 4 Cos10 = 3.94 m/s

a_{x} = acceleration along the horizontal direction = 0 m/s²

t = time of travel =  2.1 s

Using the kinematics equation

x =v_{ox} t+(0.5)a_{x} t^{2}

x = (3.94) (2.1) + (0.5) (0) (2.1)²

x = 8.3 m

Consider the motion along the vertical direction

v_{oy} = initial velocity along vertical direction = 4 Sin10 = 0.695

m/s

a_{y} = acceleration along the vertical direction = - 9.8 m/s²

y_{o} =initial vertical position at the time of launch = 20 m  

y = vertical position at the maximum height = 20 m

v_{fy} = final velocity along vertical direction at highest point = 0 m/s

using the equation

{v_{fy}}^{2}= {v_{oy}}^{2} + 2 a_{y}(y - y_{o})

0^{2}= 0.695^{2} + 2 (- 9.8)(y - 20)

y = 20.02 m

h = height above the starting height

h = y - y_{o}

h = 20.02 - 20

h = 0.02 m

7 0
3 years ago
Preston goes on a camel safari. There, he travels 5 km north, then 3 km east.
sammy [17]

7777Answer:

Explanation:

6 0
3 years ago
Read 2 more answers
Which approach would be the most interested in studying Phineas Gage
viva [34]
Biological because its studies the function of the brain’s lobes
7 0
3 years ago
Other questions:
  • 3. A 75kg man sits at one end of a uniform seesaw pivoted at its center, and his 24kg son sits at the
    11·1 answer
  • A 10 kg box rests on the ground. What is the weight of the box? __ N
    10·2 answers
  • How did Rutherford change the model of the atom?
    6·1 answer
  • Which of electromagnetic radiation has the shortest wavelength?
    8·1 answer
  • To understand the concept of intensity; the relationship between the power of the source and the intensity of the wave; and the
    11·1 answer
  • Sail's size and material can make a difference in the effectiveness of how it works because?
    5·1 answer
  • If the car traveled 754 meters in a straight line between 0 and 36 seconds, what was the
    5·1 answer
  • What type of medium (solids, liquids, or gases) do sound waves travel fastest in?
    9·1 answer
  • Forces at a Distance
    14·1 answer
  • A wave oscillates 5.0 times a second and has a speed of 8.0 m/s .What is the frequency of this wave?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!