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
Stells [14]
2 years ago
12

Answer all of these questions and you will get the brainlist

Physics
2 answers:
adelina 88 [10]2 years ago
6 0

Answer:

1. kinetic energy = ½mv²

m= 2.1 kg

v = 30m/s

Ek = ½ ×2.1×30×30

= 945J

2. potential energy = mgh

m = 190kg

g = 9.8

h = 45m

Ep = 190×9.8 × 45

= 83790J

3.potential energy = mgh

m= 75kg

g= 9.8

h = 300m

Ep = 75×9.8×300

= 220,500J

Gnoma [55]2 years ago
5 0

Answer:

2 ans : the bell has 8550 J energy

You might be interested in
Which of the following correctly describes the law of conservation of matter?
Tems11 [23]

Answer:

C

Explanation:

Tama Po yan don't worry

7 0
2 years ago
46 points :)
IgorC [24]

Answer:

Its is dividing by 2

Explanation:

It starts with 100 them it goes to 50, 25, 12.5 so its a cycle of dividing by 2

3 0
3 years ago
Read 2 more answers
If the action force is the swimmer pushing water in the leftward direction, what is the reaction force?
Sphinxa [80]
  • According to Newton's Third Law of Motion, to every action, there is an equal and opposite reaction; action and reaction act on different bodies.
  • Here, the action force is in the leftward direction, so the reaction will be in the opposite direction.
  • If the action force is the swimmer pushing water in the leftward direction, then the reaction force is in the rightward direction.
  • And the reaction force will be given by the water on the swimmer.

<u>Answer</u><u>:</u>

<u>The </u><u>reaction </u><u>force </u><u>is </u><u>the </u><u>water </u><u>pushing </u><u>the </u><u>swimmer </u><u>in </u><u>the </u><u>rightward </u><u>direction</u><u>.</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

3 0
2 years ago
Why must the Moon travel more than a full orbit around the Earth for the full moon to be complete?
kumpel [21]

Answer:

The difference between the sidereal and synodic months occurs becuase as our moon moves around the earth, the earth also moves around our sun. Our moon must travel a little farther in its path to make up for the added distance and complete the phase cycle.

Explanation:

Hope this helps.

3 0
2 years ago
What is parkour and how do you do it?
saw5 [17]

Answer:

Parkour is a type of sport or “Hobby”

Explanation:

Parkour is the activity or sport of running through an area, typically in an urban environment.

You can perform parkour by jumping over certain objects, leaping and turning, etc.

Hope this helped!

~Oreo!

4 0
2 years ago
Other questions:
  • Express fx and fy in terms of the length of the vector f and the angle θ in paired form
    13·1 answer
  • How does the ringing sound of a telephone travels from the phone to your ears?
    7·1 answer
  • An object of mass m slides down an incline with angle 0.
    6·2 answers
  • What are the three key points to seismic waves​
    11·1 answer
  • Calculate the impulse of a 0.140 kg baseball that starts at rest on a tee and reaches a final velocity of 20 m/s after being str
    12·2 answers
  • Ray runs 78 feet north, then 61 feet west. Calculate the total displacement traveled by in feet
    14·1 answer
  • Why are slow-twitch muscles more beneficial than fast-twitch muscles for cardiorespiratory fitness?
    14·2 answers
  • What are the major forces that drive patterns of atmospheric movement?<br>help plz i being timed
    12·1 answer
  • In lightning storms, the potential difference between the Earth and the bottom of the thunderclouds can be as high as 350MV . Th
    14·1 answer
  • Need help again PLEASE HELP!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!