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
schepotkina [342]
3 years ago
5

Determine the mechanical energy of this object a 1-kg ball rolls on the ground at m/s

Physics
1 answer:
dedylja [7]3 years ago
8 0
Mechanical energy = potential energy + kinetic energy
The ball is on the ground so it has no potential energy. that's all i know.
You might be interested in
How do you think a graph of deceleration would differ from a graph showing acceleration
zloy xaker [14]
A graph of acceleration would have to be a graph with an increasing slope, since you're going faster and faster

a graph of deceleration would have to be a graph with a negative slope since you are slowing down over time
6 0
3 years ago
Read 2 more answers
In the experiment, a meter is hooked up to a speaker to monitor the amplitude of the received sound. Suppose the background sign
FrozenT [24]

Answer:

The answer is "15.38\%"

Explanation:

Background= 13 \ mv\\\\

corrected signal= 91 \ mv-13\ mv= 78\ mv\\\\

with attenuator=25\ mv-13\ mv= 12\ mv\\\\

\to \frac{p_t}{p_i}=\frac{12}{78}\times 100= 15.38\%

4 0
3 years ago
When a rope is wrapped around a wheel (or pulley) and pulled, the lever arm is the ________ Blank 1 of the wheel and the angle b
m_a_m_a [10]

Answer:

the DISTANCE between the lever arm and the force is always 90º

Explanation:

In this exercise, you are asked to complete the missing words so that the phrase makes sense.

note that the torque is

              τ = F x r

where bold indicates vectors

When the rope is pulled, the DISTANCE between the lever arm and the force is always 90º

3 0
3 years ago
What is one common electrostatic phenomenon​
Mademuasel [1]

Answer:

There are many examples of electrostatic phenomena, from those as simple as the attraction of the plastic wrap to one's hand after it is removed from a package to the apparently spontaneous explosion of grain silos, the damage of electronic components during manufacturing, and photocopier & laser printer operation

6 0
3 years ago
A thin double convex glass lens with an index of 1.56 while surrounded by air has a 10 cm focal length. If it is placed under wa
bearhunter [10]

Explanation:

Formula which holds true for a leans with radii R_{1} and R_{2} and index refraction n is given as follows.

          \frac{1}{f} = (n - 1) [\frac{1}{R_{1}} - \frac{1}{R_{2}}]

Since, the lens is immersed in liquid with index of refraction n_{1}. Therefore, focal length obeys the following.  

            \frac{1}{f_{1}} = \frac{n - n_{1}}{n_{1}} [\frac{1}{R_{1}} - \frac{1}{R_{2}}]  

             \frac{1}{f(n - 1)} = [\frac{1}{R_{1}} - \frac{1}{R_{2}}]

and,       \frac{n_{1}}{f(n - n_{1})} = \frac{1}{R_{1}} - \frac{1}{R_{2}}

or,          f_{1} = \frac{fn_{1}(n - 1)}{(n - n_{1})}

              f_{w} = \frac{10 \times 1.33 \times (1.56 - 1)}{(1.56 - 1.33)}

                          = 32.4 cm

Using thin lens equation, we will find the focal length as follows.

             \frac{1}{f} = \frac{1}{s_{o}} + \frac{1}{s_{i}}

Hence, image distance can be calculated as follows.

       \frac{1}{s_{i}} = \frac{1}{f} - \frac{1}{s_{o}} = \frac{s_{o} - f}{fs_{o}}

              s_{i} = \frac{fs_{o}}{s_{o} - f}

             s_{i} = \frac{32.4 \times 100}{100 - 32.4}

                       = 47.9 cm

Therefore, we can conclude that the focal length of the lens in water is 47.9 cm.

4 0
3 years ago
Other questions:
  • Substance a is a solid ionic compound substance b solid covalent compound what would happen if you put them both in the same con
    11·1 answer
  • Jacques and Georgette meet in the middle of a lake while paddling in their canoes. They come to a complete stop and talk for a w
    11·1 answer
  • Which jet stream flows around the sub-tropical high pressure systems and advects moisture along its poleward periphery?
    7·1 answer
  • A particle (charge = 40 μC) moves directly toward a second particle (charge = 80 μC) which is held in a fixed position. At an in
    6·1 answer
  • This waterbottle has a mass of .5 kg. If the net force acting on the bottle is five and to the right what is the bottles acceler
    12·1 answer
  • When NASA's Skylab reentered the Earth's atmosphere on July 11, 1979, it broke into a myriad of pieces. One of the largest fragm
    11·1 answer
  • In the sum of 54.34 and 45.66, the number of significant figure for the<br>answer is​
    5·1 answer
  • Cylinder A has a mass of 2kg and cylinder B has a mass of 10kg. Determinethe velocity of A after it has displaced 2m from its or
    11·1 answer
  • What % of an object’s mass is below the water line if the object’s density is 0.63g/ml?
    13·1 answer
  • GIVING BRAINLIEST PLEASE HELP!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!