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
liraira [26]
3 years ago
15

A marble rolling at a speed of 2 meters per second falls off the end of a 1-meter high table. How long will the marble be in the

air.?
Physics
1 answer:
irga5000 [103]3 years ago
8 0

<span>t^2 = 1/4.9 </span>
<span>t = 0.45 sec 
 answer:</span><span>1 - 4.9t^2 = 0 </span>
You might be interested in
A projectile has an initial horizontal velocity of 34.0 M/s at the edge of a roof top. Find the horizontal and vertical componen
Sveta_85 [38]

Answer:

v_x=34 m/s

v_y=53.9\ m/s

Explanation:

<u>Horizontal Launch</u>

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

vx=v

The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:

v_y=g.t

The horizontal component of the velocity is always the same:

v_x=34 m/s

The vertical component at t=5.5 s is:

v_y=9.8*5.5=53.9

v_y=53.9\ m/s

8 0
3 years ago
Kelly is riding a bicycle, moves with an initial velocity of 5 m/s. Ten seconds later, she is moving at 15 m/s. What is her acce
sladkih [1.3K]

Answer:

her acceleration is 1 m/sec

Explanation:

The following information is given in the question

The initial velocity is 5 m/s

After 10 seconds, she would be moved at 15 m/s

We need to find the acceleration

As we know that

Acceleration = Change in speed ÷ time

Acceleration = (15 - 5) ÷ (10)

= 1 m/sec

Hence, her acceleration is 1 m/sec

The same would be considered  

3 0
3 years ago
If the resistance is not changed but the voltage is increased, what happens to the current
julsineya [31]

We know that According to Ohm's Law :

Current passing through a Conductor is directly proportional to the Voltage over a given Resistance.

⇒ V ∝ I

⇒ V = I × R

If Resistance is not changed and Voltage is increased, Based on Ohm's law we can conclude that Current flowing will also increase, because Voltage is directly proportional to Current.

6 0
3 years ago
5)
miskamm [114]
B . I hope this is right
4 0
3 years ago
The pitch of a sound wave is its _________. <br> A.speed B.amplitude C.frequency D.wavelength
Artyom0805 [142]
Hi there my friend :)


Your answer is C. frequency


Hope this helps :)

-xxAnsxx-
8 0
3 years ago
Other questions:
  • A certain shade of blue has a frequency of 7.24 × 1014 Hz. What is the energy of exactly one photon of this light?
    12·2 answers
  • What minimum speed is required for the ball to clear the 0.90-m-high net about 15.0 m from the server if the ball is "launched"
    6·1 answer
  • Why can beta particles pass through materials more easily than alpha particles? (2 points)
    6·2 answers
  • If a 2-kg ball is thrown through the air at 20 m/s what is the momentum of the ball?
    14·1 answer
  • A closed system contains 30g of gas. How much heat(in joules) is added to or rejected by the system to produce 5000 N-m of work
    15·1 answer
  • How long does it take to freeze ice cubes?
    5·1 answer
  • Choose the correct option
    6·1 answer
  • Ayudaaa no se como resolverlo con procedimiento :(
    5·1 answer
  • Consider two closely spaced and oppositely charged parallel metal plates. The plates are square with sides of length L and carry
    7·1 answer
  • A car has a uniform velocity of 108km/h. How far does it travel in 30 seconds?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!