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
dangina [55]
2 years ago
5

NEED ASAP PLEASE !!

Physics
2 answers:
Ilia_Sergeevich [38]2 years ago
8 0

Answer: The correct answer is option (A).

Explanation:

Initial velocity of the balloon = 0 m/s

let the distance covered by the balloon from roof to the ground= h

Time taken by the balloon to reach the ground = t = 2.5 seconds

Acceleration due to  gravity = g =9.8 m/s^2

Using confuse equation of the motion:

h=ut+\frac{1}{2}gt^2

h=0 m/s\times 2.5 s+\frac{1}{2}\times9.8 m/s^2\times (2.5 s)^2=30.625 m\approx 30.6 m

Hence, the correct answer is option (A).

Svetllana [295]2 years ago
3 0
The balloon was 30.65 meters above ground.

ANSWER: A
You might be interested in
A student environmental group is creating a campaign for locally sourced energy resources.What would be best for them to feature
Ivenika [448]

Answer:

<em>A farmer with a field of solar panels.</em>

Explanation:

The closest to a locally sources energy would have been

A coal mine located in their county.

But coal as an energy source is not environmentally friendly due to carbon emission, and should not be what the group should advocate for.

<em>The best bet for them is </em>

<em>A farmer with a field of solar panels.</em>

As solar panels are a source of green energy and green energy is what the environmental group should often and always advocate for

3 0
3 years ago
If you place 1 C of positive charge on Earth and 1 C of negative charge on the moon, 384,500 km away, how much force would the p
ivolga24 [154]

Answer:

6.1 x 10^-8 newtons

Explanation:

F = 8.98 *109 *1*1/3845000002

4 0
2 years ago
A horse travels 80 meters south in 20 seconds. What is its average velocity?
AURORKA [14]

Average velocity is a vector unit (i.e. includes magnitude <em>and </em>direction) calculated by working out distance ÷ time:

80 metres ÷ 20 seconds = 4 metres/seconds (m/s)

Therefore, your final answer is C. 4 m/s south.

7 0
2 years ago
When an object travels a large distance in a small amount of time, the object's speed is
Kisachek [45]
If I were to go from the United States to China in one second, that's a large distance in an incredibly short time. I'd say that's pretty fast.

If I were to go from my room to the door of my room in a year, then that would be unbearably slow.
8 0
3 years ago
Why cant halleys comet be seen from earth only for about one year of its 76-year orbit
AlexFokin [52]

Answer:

Halley's comet will next appear in the night sky in the year 2062. It orbits the sun every 75-76 years, so this is the time between appearances.

4 0
2 years ago
Other questions:
  • A 4 kg kitten is sliding at 12 m/s on a horizontal frictionless surface. A constant force is applied that slows it with an accel
    14·1 answer
  • Why does the density of a substance remain the same for different amount of the substance
    11·1 answer
  • If the color red has a wavelength of 7.0 107 m. its frequency is
    12·2 answers
  • A boy throws a stone straight upward with an initial speed of 15m/s. What maximum height will the stone reach before falling bac
    5·1 answer
  • Adjacent antinodes of a standing wave on a string are 15.0 cm apart. A particle at an antinode oscillates in simple harmonic mot
    5·1 answer
  • A Blu-ray disc is approximately 8 centimeters in diameter. The drive motor of the Blu-ray player is able to rotate up to 10,000
    6·2 answers
  • Could You Take 2 Elements From The Periodic Table Of Elements, and possibly make one of other 116 elements that are on the table
    14·2 answers
  • By what factor would your weight increase if you could stand on the sun? (never mind that you can't.)
    9·1 answer
  • A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight dur
    10·1 answer
  • H H H O H O N C C N C C H O H H O H H C H H H ALANINE GLYCINE
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!