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
Irina18 [472]
3 years ago
5

If it takes a ball dropped from rest 2.069 s to fall to the ground, from what height h was it released?

Physics
1 answer:
Ganezh [65]3 years ago
6 0
I dont know the answer im sorry
You might be interested in
5p - 14 = 8 p + 4 find p
Digiron [165]

Answer:

Explanation:

5p - 14 = 8p + 4

5p = 8p + 18 <-- Moving constants to one side; add the same number of +14 to both sides.

-3p = 18. <-- The same thing with the variable itself.

p = -6 <-- Divide both sides by negative 3.

6 0
3 years ago
A garage door opener has a power rating of 350 watts.
Lelechka [254]
We Know, Power = Energy/Time
Substitute the known value. which is P = 350 watt, & T = 30 sec
350 = E/30 
E = 350 * 30
E = 1050 Joules.

So, your answer is 1050 Joules.
Hope this helps! Keep studying! 
6 0
3 years ago
Read 2 more answers
A 20.0-kg rock is dropped and hits the ground at a speed of 90.0 m/s. Calculate the rock’s gravitational potential energy before
KonstantinChe [14]
Answer:

<span>GPE=81000J or 81kJ</span>

Explanation

Potential Energy = mgh = 20 x 9.8 x ? 

<span>To find H use one of the equation of motion </span>

<span>= [(90)^2 - 0 ] / 2(9.8) </span>

<span>Potential Energy = mgh = 20 x 9.8 x 8100 /2(9.8) = 81000 J</span>

5 0
3 years ago
Read 2 more answers
Cellular telephone use
m_a_m_a [10]
A- Radio waves, is the answer
5 0
3 years ago
Read 2 more answers
Why are chemical changes considered “unseen”?
jeka57 [31]
<span>Because they occur at an atomic level, changing the actual structure of the thing.

</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which example best represents an object with balanced forces acting upon it? A) A boat moving through the water. B) A book sitti
    15·2 answers
  • A horizontal spring with spring constant 130 N/m is compressed 17 cm and used to launch a 2.8 kg box across a frictionless, hori
    14·1 answer
  • A model airplane has momentum given by p=[(-0.75kg.m/s3)t2 + (3.0kg.m/s)] i + (0.25kg.m/s2)t j. Find the components Fx, Fy, and
    5·1 answer
  • An 1,820 W toaster, a 1,420 W electric frying pan, and a 55 W lamp are plugged into the same outlet in a 15 A, 120 V circuit. (T
    11·2 answers
  • A rock weighs 30 n on earth and another rock weighs 30 n on the moon. which rock has the greater mass?
    15·1 answer
  • Difference between calorimeter and thermometer ?
    8·2 answers
  • What is the kinetic energy of a 478 kg object that is moving with the speed of 15 m/s
    11·1 answer
  • A system of ideal gas at 22°C undergoes an ischoric process with an internal energy decrease of 4.30 × 10 3 4.30×103 J to a fina
    7·1 answer
  • How much time is needed to push a 5,000 N car 50 meters if you are using a machine with a power of 4,500 W?
    7·1 answer
  • NEED THE ANSWER ASAP When an object is not in motion, it can still have a form of energy. What form of energy does an object hav
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!