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
Lina20 [59]
2 years ago
9

A ball rolls horizontally off a table of height 0.6 m with a speed of 9 m/s. How long does it take the ball to reach the ground?

Physics
1 answer:
denis23 [38]2 years ago
4 0

Answer: 0.067 s

Explanation:s = Ut + 1/2at^2

0.6 = 9t + 0.5 *10 *t^2

Where a = g =10m/s/s

Solving the quadratic equation

5t^2 + 9t - 0.6=0,

t= 0.067 s and - 1.7 s

Of which 0.067 s is a valid time

You might be interested in
Will plane flat mirror will make a real or virtual image?<br> Real<br> Virtual
nikdorinn [45]
Image formed by a plane mirror is always virtual which means that the light rays do not actually come from the image but upright and these of the same shape and size are the object it is<span> reflecting.</span>
8 0
3 years ago
A water wave has a speed of 22.0 meters/second if the wave frequency is 0.0680 hertz what is the wavelength
serg [7]
V = f(wavelength)
22.0 = 0.0680 (wavelength)
wavelength = 323.52 m
8 0
3 years ago
Is the Earth bigger than the moon​
sesenic [268]
Yes the Earth is bigger than the Moon.
The moon is one-quarter the size of Earth.
4 0
1 year ago
Read 2 more answers
Consider two adjacent states, S1 and S2, that wish to control particulate emissions from power plants and cement plants; New Jer
natka813 [3]

Answer:

a. 7500

b. Yes

c. 2500

d. 7500

Explanation:

Please see attachment

7 0
3 years ago
Es muy urgente porfavor! ( solo me teneis que ayudar a sacar el apartado d,e y f porfavor!
Luba_88 [7]
I don’t know español
3 0
2 years ago
Other questions:
  • To understand the vector nature of momentum in the case in which two objects collide and stick together. In this problem we will
    7·2 answers
  • What can parents do if they find a mistake in the student records?      A. They can’t do anything B. Make a correction themselve
    11·2 answers
  • A ship sets out to sail to a point 120 km due north. an unexpected storm blows the ship to a point 100 km due east of its starti
    10·1 answer
  • A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
    9·1 answer
  • A boy wants use his slingshot to shoot a water balloon into the air. His
    7·1 answer
  • Ball's velocity be in a year? Assume there are no nearby planets.
    7·1 answer
  • Which statement is true regarding the formation of ionic bonds
    15·1 answer
  • There is up to 30 times more gold in a tons of old mobile phones than in a tons of gold ore. true or false
    11·1 answer
  • Ashley decides to enter her pet turtle in a race. She knows her turtle can travel at a rate of 2 meters per hour. The race track
    8·1 answer
  • A 60.0-kg skater begins a spin with an angular speed of 6.0 rad/s. By changing the position of her arms, the skater decreases he
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!