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
Klio2033 [76]
3 years ago
6

A rock is thrown downward from the top of a cliff If the rock hits the ground after 2.0 s, with a velocity of 12 m/s what is the

height of the cliff?
Physics
1 answer:
expeople1 [14]3 years ago
8 0

Explanation:

v = u + a t

12 = 0 + 2a

a= 12/2

a=6 m/s2

v^2 - u ^2 = 2 as

12 ^2 - 0 ^2 = 2 * 6 * s

144 = 12 s

s = 144/12

s = 12 m

You might be interested in
What do you do when ur dog is running away?
Alexxx [7]

Answer:

Try to chase it or try to put up missing posters if you cant him/her, i never had a dog but i would do that and ask neighbors if they know where the dog is at.

Explanation:

7 0
3 years ago
Read 2 more answers
The last multiple choice answer is
N76 [4]

Answer:

Answer: C

Explanation:

The closer the city is by the ocean, the cooler it will get because of the winds it is created from the ocean. Meanwhile, Atlanta is slightly away from the ocean but wont be as cool as the Tybee Island. So the heat will hit more to the city away from the ocean.

5 0
3 years ago
if lightning is 3 times hotter than the sun and the sun can kill you instantly than why does a lighting strike not kill you inst
Mkey [24]
A lightning strike happens so fast, and only hits a point of your body, but if you've noticed that it still completely melts the part of your body that it has stuck? Also the sun is a large mass of that heat, that will melts you the same way as lightning would if it were to continuously strike you all over your body. <span />
5 0
3 years ago
Read 2 more answers
Estimate the average force that a baseball pitcher's hand exerts on a 0.145-kg baseball as he throws a 40-m/s pitch. Assume the
Kitty [74]

Answer:

38.67 N

Explanation:

v = Final velocity = 40 m/s

u = Initial velocity

m = Mass of ball = 0.145kg

s = Displacement of ball = 3 m

Equation of motion

v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{40^2-0^2}{2\times 3}=\frac{800}{3}\ m/s^2

F=ma

\\\Rightarrow F=0.145\times \frac{800}{3}\\\Rightarrow F=38.67\ N

∴ Average force that a baseball pitcher's hand exerts on the ball is 38.67 N

6 0
3 years ago
Read 2 more answers
On a distance vs. time graph of an object's motion, distance is usually
sveta [45]
<span>the dependent variable 
<span>a variable (often denoted by y ) whose value depends on that of another.</span>

</span>
3 0
3 years ago
Other questions:
  • Please answer i need help asap!!!
    5·1 answer
  • In which of the following examples does the object have both kinetic and potential energy? Select all that apply.
    11·2 answers
  • Explain why streets and highways have speed limits and not velocity limits.
    6·1 answer
  • How are red dwarf stars and yellow dwarf stars alike?
    10·1 answer
  • How does energy relate to force?
    5·1 answer
  • An atom with the expected number of neutrons, protons, and electrons is called a(n)
    5·1 answer
  • How much heat is needed to boil 200g of water from 30 degrees:
    11·1 answer
  • Jenise is buying a car for $13,085. She wants $9,400 in upgrades to the car.
    14·2 answers
  • given a circuit powered at 12V with R1, R2, R3 respectively of 10,20,30 Ohm, determine R4 in such a way that the Wheatstone brid
    6·1 answer
  • What tool would you use for Volume
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!