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
frozen [14]
3 years ago
7

A ball is thrown upward. At a height of 10 meters above the ground, the ball has a potential energy of 50 joules (with the poten

tial energy equal to zero at ground level) and is moving upward with a kinetic energy of 50 joules. Air friction is negligible. The maximum height reached by the ball is most nearly_________.
Physics
1 answer:
lions [1.4K]3 years ago
5 0

Answer:

 h = 20 m

Explanation:

given.

height, h = 10 m

Potential energy at 10 m = 50 J

Kinetic energy at 10 m = 50 J

maximum height the ball will reach, H = ?

Total energy of the system

T E = 50 J + 50 J

T E = 100 J

now,

A h = 10 m

P E = m g h

50 = m g x 10

mg = 5 ..............(1)

at the top most Point the only Potential energy will be acting on the body.

now, TE = Potential energy

 100 = m g h

5 h = 100

 h = 20 m

hence, the maximum height reached by the ball is equal to 20 m.

You might be interested in
Help ME QUICK PLEASE QUESTION 2 AND 4 PLEASE 58 POINTS
monitta

Answer:

For number 4: A vector pointing to the right with a magnitude of 2.0

Explanation:

Very simple- just subtract 6-2

I am not sure how to do #2- sorry!

6 0
3 years ago
What is one advantage of using electromagnets instead of permanent magnets
zimovet [89]
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.
5 0
3 years ago
Read 2 more answers
A value with magnitude only is a ?​
harkovskaia [24]
Scalar quantities have only a magnitude. So the answer is scalar quantities.
4 0
2 years ago
What is the relationship between the normal force and weight
GalinKa [24]

Answer: they have the same magnitude.

Explanation:

normal force = mg

weight = mg

4 0
2 years ago
A ball is thrown vertically up from the edge of a cliff with a speed of 8 m/s, how high is
anygoal [31]

Explanation:

s=d/t

d=s×t

d=8×16.4

d=131.2

distance is 131.2m.

7 0
2 years ago
Other questions:
  • Which statement is not true?
    13·2 answers
  • A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. At this time, the driver suddenly realizes that she m
    10·1 answer
  • Which statement about moons is true?
    5·1 answer
  • A grey wolf is chasing a deer through a forest. The deer's muscle cells eventually begin to run out of oxygen.
    9·1 answer
  • Suppose you are in an elevator. As the elevator starts upward, its speed will increase. During this time when the elevator is mo
    7·1 answer
  • Which wave has a higher frequency than microwaves but lower frequency than UV waves?
    10·1 answer
  • Why are states in the mid-central United States more likely to have tornados than other areas?
    12·1 answer
  • What is the speed of a car traveling 31,450 meters in 68450 seconds?
    8·1 answer
  • A 60 kg person runs up a set of stairs in B-Building 6 meters high, in a time of 8 seconds.
    14·1 answer
  • 17 points
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!