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
Snezhnost [94]
3 years ago
6

A basketball player jumps straight up for a ball. To do this, he lowers his body 0.260 m and then accelerates through this dista

nce by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.920 m above the floor. (a) Calculate his velocity (in m/s) when he leaves the floor.
Physics
1 answer:
Stels [109]3 years ago
3 0

Answer:

u = 4.25 m/s

Explanation:

The kinematic expression is as follows:

v² = u² - 2as

where

u = initial velocity

v = final velocity

s = distance

g = acceleration due to gravity .

when he reaches a height of 0.920 m above the floor the final velocity  = 0

acceleration due to gravity act opposite the initial direction of motion. So, -9.81 m/s.

v² = u² + 2as

0² - u² = 2 (- 9.81) × 0.920

- u² = 2 × - 9.81 × 0.920

multiply both sides by -1

u² = 2 × 9.81 × 0.920

u² = 18.0504

u = √18.0504

u = 4.2485762321

u = 4.25 m/s

You might be interested in
When atoms of an element are excited, they emit specific wavelengths of light. How is this similar to a fingerprint when Fraunho
Anika [276]

Answer:

As you may know, each element has a "fixed" number of protons and electrons.

These electrons live in elliptical orbits around the nucleus, called valence levels or energy levels.

We know that as further away are the orbits from the nucleus, the more energy has the electrons in it. (And those energies are fixed)

Now, when an electron jumps from a level to another, there is also a jump in energy, and that jump depends only on the levels, then the jump in energy is fixed.

Particularly, when an electron jumps from a more energetic level to a less energetic one, that change in energy must be compensated in some way, and that way is by radiating a photon whose energy is exactly the same as the energy of the jump.

And the energy of a photon is related to the wavelength of the photon, then we can conclude that for a given element, the possible jumps of energy levels are known, meaning that the possible "jumps in energy" are known, which means that the wavelengths of the radiated photons also are known. Then by looking at the colors of the bands (whose depend on the wavelength of the radiated photons) we can know almost exactly what elements are radiating them.

7 0
3 years ago
What cause-and-effect relationship is described in this
nydimaria [60]

The term cause and effect relationship relates to a situation where an effect is directly traceable to a cause.

<h3>What is cause and effect relationship?</h3>

The term cause and effect relationship relates to a situation where an effect is directly traceable to a cause. The question is incomplete and the article was not mentioned.

A typical example of cause and effect relationship is that increased fossil  fuel use is leading to a rise in the average temperature of the planet.

Learn more about cause and effect: brainly.com/question/3302065

8 0
2 years ago
An electric current is flowing through a long cylindrical conductor with radius a. The current density J is uniform in the cylin
RUDIKE [14]

Answer:

Check the explanation

Explanation:

Kindly check the attached images below to see the step by step explanation to the question above.

4 0
3 years ago
Paleobotany is the study of fossil insects. True False
alexira [117]

Answer:

False

Explanation:

Paleobotany is the study of fossil plants.

6 0
3 years ago
Read 2 more answers
Motion is always compared to something called
HACTEHA [7]

Movement can be without change in positions. As only a part of it can be made to move. If you move there is a motion and if there is a motion there is a movement so they're same thing. In motion whole of body moves, but in movements only the parts of body moves.

7 0
3 years ago
Other questions:
  • Find the fundamental frequency and the next three frequencies that could cause standing-wave patterns on a string that is 30.0 m
    9·1 answer
  • A cd has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, the cd starts from rest and accelerates to an angul
    12·1 answer
  • -g With what tension must a rope with length 2.50 m and mass 0.120 kg be stretched for transverse waves of frequency 40.0 Hz to
    6·1 answer
  • Using a slotted line, the following results were obtained:
    9·1 answer
  • (MICROWAVE) <br><br><br>Describe the device and its function.
    8·1 answer
  • 1.- Al aplicar una fuerza de 60 Newtons sobre un cuerpo, se produce una aceleración de 4 m/s2 calcula el valor de su masa.
    7·1 answer
  • A scientist is using an objective lens with 40X magnification on his microscope. If the ocular lens magnifies 10X, what is the t
    7·1 answer
  • A solid keeps its shape due to which of the following factors?
    6·2 answers
  • During which step of the scientific method does a scientist determine
    15·1 answer
  • Suppose a shrimp has been put on the ground that has just been taken out of water.Now touch the shrimp from a distance by a stic
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!