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
Eva8 [605]
3 years ago
14

A basketball referee tosses the ball straight up for the starting tipoff. at what velocity must a basketball player leave the gr

ound to rise 1.25 m above the floor in an attempt to get the ball?
Physics
1 answer:
sladkih [1.3K]3 years ago
5 0
Mgh=mv²/2

v=√2gh=√2·9.8·1.25=4.95m/s
You might be interested in
paula finds four unlabeled containers of clear, odorless liquid in her laboratory storage. one of the containers holds water. sh
aliya0001 [1]
The answer is c ............
5 0
3 years ago
Read 2 more answers
How did you manage to overcome the difficulties that arose?
Flauer [41]

Answer:

I just toughed it out and talked with friends

Explanation:

4 0
2 years ago
Question 2 10
ss7ja [257]
B Ik it all just know who they’ll you
8 0
3 years ago
A 70.0 kg astronaut is training for accelerations that he will experience upon reentry. He is placed in a centrifuge (r = 15.0 m
Levart [38]

Answer:

1.3823 rad/s

20.7345 m/s

28.66129935 m/s²

a=2.92164g

2006.29095 N radially outward

Explanation:

r = Radius = 15 m

m = Mass of person = 70 kg

g = Acceleration due to gravity = 9.81 m/s²

Angular velocity is given by

\omega=13.2\times \dfrac{2\pi}{60}\\\Rightarrow \omega=1.3823\ rad/s

Angular velocity is 1.3823 rad/s

Linear velocity is given by

v=r\omega\\\Rightarrow v=15\times 1.3823\\\Rightarrow v=20.7345\ m/s

The linear velocity is 20.7345 m/s

Centripetal acceleration is given by

a_c=r\omega^2\\\Rightarrow a_c=15\times 1.3823^2\\\Rightarrow a_c=28.66129935\ m/s^2

The centripetal acceleration is 28.66129935 m/s²

Acceleration in terms of g

\dfrac{a}{g}=\dfrac{28.66129935}{9.81}\\\Rightarrow a=2.92164g

a=2.92164g

Centripetal force is given by

F_c=ma_c\\\Rightarrow F_c=70\times 28.66129935\\\Rightarrow F_c=2006.29095\ N

The centripetal force is 2006.29095 N radially outward

The torque will be experienced when the centrifuge is speeding up of slowing down i.e., when it is accelerating and decelerating.

3 0
4 years ago
A person makes a cup of coffee by first placing a 200 W electric immersion heater in 0.32 kg
alexdok [17]

Answer:

Answer is D. 8.04 x 10^4 J

Explanation:

1. D

2. A

3. D

4. B

5. C

6. B

7. D

8. C

9. B

10. D

All correct i promise you that

8 0
3 years ago
Other questions:
  • A puddle of water has a thin film of gasoline floating on it. A beam of light is shining perpendicular on the film. If the wavel
    11·1 answer
  • The wavelengths of light emitted by a firefly span the visible spectrum but have maximum intensity near 550 nm. A typical flash
    5·1 answer
  • Do air bags increase pressure on the body during an accident
    5·1 answer
  • What do we call factors that control traits
    7·1 answer
  • The higher the value of the coefficient of friction, the _______ the resistance to sliding.
    6·2 answers
  • Why is an important to come up with a plan for how are you to respond to negative peer pressure before the situation happens
    11·1 answer
  • Someone pleaseeeee helppp
    15·1 answer
  • Help in physics please. Need asap :(((​
    5·1 answer
  • Can anyone help me???
    12·1 answer
  • At the Earth's surface, a projectile is launched straight up at a speed of 10.0km / s. To what height will it rise? Ignore air r
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!