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
g100num [7]
3 years ago
12

*EXTRA PTS* How much weight is needed for a 10 m high ball to achieve 400 J of potential energy?

Biology
2 answers:
mafiozo [28]3 years ago
7 0

Answer:

,Mass of the Body = 10 kg.

Height = 10 m.

Acceleration due to gravity = 9.8 m/s².

Using the Formula,Potential Energy = mgh

= 10 × 9.8 × 10 = 980 J.

(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

∴ Kinetic Energy = 980 J.

(c). Kinetic Energy = 980 J.

Mass of the ball = 10 kg.

∵ K.E. = 1/2 × mv²

∴ 980 = 1/2 × 10 × v²

∴ v² = 980/5

⇒ v² = 196

∴ v = 14 m/s.

ivanzaharov [21]3 years ago
3 0

3. Yes - At maximum stretch the ball stops. The ball is now 2 meters plus x below the starting point where x is the stretch distance down. The total energy is all potential in the springs and gravitational and is m g (2 + x)

Explanation:

<h2 />
You might be interested in
7. What is a layout of chromosomes in humans in order from largest to smallest with the
hodyreva [135]

Answer:

Look down!!! ;)

Explanation:

In a human karyotype, autosomes or “body chromosomes” (all of the non–sex chromosomes) are generally organized in approximate order of size from largest (chromosome 1) to smallest (chromosome 22). However, chromosome 21 is actually shorter than chromosome 22.

Hope this helps!! ;)

5 0
3 years ago
PLEASE HELP!!
kkurt [141]

These changes can be natural, such as through variations in the solar cycle.

<h3>Climate history</h3>

Clam shells

2. 800,000 years ago

Ice cores

1. 150 million years ago

Oldest rocks in the world

5. 3.8 billion years ago

Tree cores

3. 10,000 years ago

Ocean sediments

4. 200 million years ago

With this information we can conclude that these changes may be natural, such as through variations in the solar cycle. But since 1800, human activities have been the main driver of climate change, mainly due to the burning of fossil fuels like coal, oil and gas.

Learn more about Climate in brainly.com/question/885982

5 0
2 years ago
Local farmers think that a commonly used pesticide is responsible for the increase in appearance of frogs with an additional app
stira [4]

Answer:

D.-

Explanation:

A control group is needed to carry out the experiment, that control group is the one that is not injected with anything.  Ethanol and pesticide need to be injected into separated groups to document whether it is one or the other that is harmful

4 0
3 years ago
Why do the cellular processes necessary for life take place in a watery environment?
mestny [16]
<span> water is a solvent. It helps to break waste and nutrients down in the </span>cell so <span>that they can be moved through the various membranes. this is necessary in a cell </span><span />
3 0
3 years ago
A marine ecosystem off the California coast consists of leatherback turtles that feed on jellyfish, and killer whales that prey
True [87]
The population of jellyfish would increase and the population of killer whales would decrease
8 0
3 years ago
Read 2 more answers
Other questions:
  • The nursing instructor is talking with their students about botulism. The instructor tells the students that when caring for a c
    8·1 answer
  • Match each muscle term with weather they are Smooth Muscle and or Cardiac Muscle
    5·2 answers
  • You've made the hypothesis that the higher the density of a rock, the higher the temperature at which it will melt, because a de
    14·2 answers
  • Through what process can special interest groups and businesses influence the government? A. protests B. lobbying C. tax payment
    9·2 answers
  • What is the definition of light-dependent reactions and light independent reactions?
    12·1 answer
  • The lobe of the brain with primary responsibility for processing bodily sensations is the ______________.
    11·1 answer
  • Three body cells in the human body which is attacked by the plasmodium parasite​
    15·1 answer
  • How many oxygen atoms are present
    13·2 answers
  • 5. What is the meaning of heterozygous?
    13·1 answer
  • Discuss why choosing wrong friends may subject you to unrealistic life expectations resulting in conflict with your families.​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!