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
PilotLPTM [1.2K]
4 years ago
12

A stone dropped from the root of a high buliding . A second stone is dropped 1.30 s later How far apart are the stones when the

second one has reached a speed of 14.0 m/s
Physics
1 answer:
oksian1 [2.3K]4 years ago
6 0

Answer:

The stones are apart one each the other 26.37 meters when the second one has reached a speed of 14 m/s.

Explanation:

<u>Second Stone:</u>

Vb= g*t

tb (14m/s)= Vb/g

tb (14m/s)= (14 m/s) / (9.8 m/s²)

tb (14m/s)= 1.42 sec

Hb= (g * tb²)/2

Hb= 9.88m

<u>First Stone:</u>

ta= tb + 1.3 sec

ta= 2.72 sec

Ha= (g*ta²)/2

Ha= 36.25m

Distance between Stones:

Ha-Hb= 36.25m - 9.88m

Ha-Hb= 26.37m

You might be interested in
The elastic portion of the downward-sloping straight-line demand curve lies:_______
zepelin [54]

Answer:

c. above the point of unit elasticity.

Explanation:

The elastic portion of the downward-sloping straight-line demand curve lies above the point of unit elasticity. Supply and demand are fundamental concept in economics. The demand curve shows how much of a good people will want at a different prices. The demands curves illustrates the intuition why people purchase a good for a lower price. For the demand curve, the price is always shown on the vertical axis and the demand curve is shown on the horizontal axis. Thus , the quantity demanded increases as the price gets lower. However, the price elasticity of the demand curve varies along the demand curve. This is because there is a key distinction between the gradient and the elasticity. The gradient which is the slope of the line is always the same in the demand curve but elasticity of the demand changes in the percentage of the quantity demand. Therefore, elasticity will vary along the downward-sloping straight - line demand curve. So,  in a downward-sloping straight-line demand curve, the elastic portion is usually above the  point of unit elasticity

7 0
3 years ago
Which symbol and unit of measurement are used for electric current?
Burka [1]

Answer: Symbol is I and unit A

Explanation: A represents Amperes

HOPE THIS HELPS!!!!!!!!

4 0
3 years ago
Why is CO2 in the atmosphere a problem
leva [86]

This is a problem because due to human actions, we have produced so much of it, it has become dangerous.

Hope this helped!

IF YOU LIKE MY ANSWER PLS GIVE ME BRAINLIEST!!

4 0
4 years ago
Read 2 more answers
Why are plants generally green?
e-lub [12.9K]

The correct answer is option D, "The pigment chlorophyll reflects green light waves"

The chloroplast with in the plants consists of chlorophyll (green colour pigment) which is highly absorbent to the long and short wavelengths such as red and blue wavelength of visible spectrum and reflects green wavelengths thereby producing green colour visualizations to the viewer. The two common chlorophyll usually found in the leaves are chlorophyll A and B. Chlorophyll A is majorly responsible for reflecting the green light

7 0
3 years ago
an object has a velocity of 0.12 rad/s. how many revolutions will the object make after traveling for 30 seconds?
Basile [38]

Answer:

We can write   S = v * t    where S is the distance traveled in time t

S = .12 rad/sec * 30 sec = 3.6 rad     distance traveled

Also 2 * pi * N = S   since there are 2 * pi rad / revolution

So 2 * pi * N = 3.6

N = 3.6 / (2 * pi) = .573 revolutions

7 0
3 years ago
Other questions:
  • after an investigation kuri determines that her hypothesis was wrong what is the best thing for kuri to do next​
    10·2 answers
  • You put two ice cubes in a glass and fill the glass to the rim with water. As the ice melts, the water level
    10·1 answer
  • If a ball rolls off a 4m high table at 7m/s, how long will it take until it hits the floor
    11·1 answer
  • PLEASE HELP
    9·1 answer
  • Please help me again , im sorry I keep asking but please help me please
    5·1 answer
  • Steam enters a one-inlet, two-exit control volume at location (1) at 360°C, 100 bar, with a mass flow rate of 2 kg/s. The inlet
    7·1 answer
  • A plane monochromatic radio wave (? = 0.3 m) travels in vacuum along the positive x-axis, with a time-averaged intensity I = 45.
    11·1 answer
  • How does a rilling can work
    11·1 answer
  • A 15 kg cart is pushed on a frictionless surface from rest horizontally by a 30 N force. What is the cart's acceleration?
    15·1 answer
  • When equipment or motors need to be operated momentarily for inching, what's the ideal circuit to use?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!