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
Elenna [48]
3 years ago
11

A student in gym class swings from a rope and they are moving 5 m/s at the bottom of their swing. What is the height they reach

above the floor before swinging back down?
1/2v^2=gh g = 9.8 m/s^2
A 2.55 m
B. 1.28 m
c. 5m
D. 12.5 m​
Physics
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

A

Explanation:

You might be interested in
The frequency of the applied RF signal used to excite spins is directly proportional to the magnitude of the static magnetic fie
telo118 [61]

Complete Question

The complete question is shown on the first uploaded image  

Answer:

The uncertainty in inverse frequency is  \Delta  [\frac{1}{w} ]=  \frac{3}{2000} \ s

Explanation:

From the question we are told that

   The value of the proportionality constant is  k  = 5  \frac{Hz }{T}

   The strength of the magnetic field is  B = 20 \ T

   The change in this strength of magnetic field is  \Delta B = 3  \ T

The magnetic field is given as

           B  =  \frac{k}{\frac{1}{w} }

Where w is frequency

The uncertainty or error of the field is given as

         \Delta  B  =  \frac{k }{[\frac{1}{w}^]^2 }  \Delta [\frac{1}{w} ]

The uncertainty in inverse frequency is given  as

           \Delta  [\frac{1}{w} ]  = \frac{\Delta B}{k [\frac{1}{w^2} ]}

                    \Delta  [\frac{1}{w} ]=  \frac{\Delta B}{k (B)^2 }

substituting values

                  \Delta  [\frac{1}{w} ]=  \frac{3}{5 (20)^2 }

               \Delta  [\frac{1}{w} ]=  \frac{3}{2000} \ s

6 0
3 years ago
How can you increase the torque you are putting on a lever, without exerting any more force?
Mariana [72]

Answer:

See below

Explanation:

Torgue = f * distance    basically ...so if you want to increase torque with same  f   then the distance ( lever arm)  must be increased

4 0
3 years ago
Fill in the blank: An object is most likely to sink in water if _________________.
drek231 [11]
High density
random words to fill up 20 character minimum for answering questions :P
4 0
3 years ago
Read 2 more answers
How are speed and velocity similar ?
Serhud [2]
I agree with you the answer is A

3 0
3 years ago
Read 2 more answers
What is escape velocity​
Bogdan [553]
The minimum speed needed a non-propelled object to escape from the gravitational influence of a massive body, that is to achieve an infinite distance from it. I think
3 0
4 years ago
Read 2 more answers
Other questions:
  • Tierra is playing in her backyard when she hears her friend calling out to her. She can't see her friend but can hear her friend
    10·2 answers
  • Given the distance from the through of one wave to the next wave you can determine the HELP FAST!!!!!
    15·1 answer
  • Which factor affects the force of gravity between objects? Select two options.
    7·2 answers
  • Explain the advantages of using parallel circuits to series circuits in wiring rooms
    9·1 answer
  • M moon = 7.35 times 10 to the 25 grams
    6·1 answer
  • How many atoms of Oxygen (O) are in 3CO2
    6·1 answer
  • While calculating electric field should we include the sign of the charge in the formula?
    6·1 answer
  • HELP: I’ve been stuck on this problem for a while now.
    5·1 answer
  • Fish are not able to regulate their body temperature by producing heat.
    7·2 answers
  • Distinguish between basic and derived units
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!