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
3241004551 [841]
2 years ago
8

A 0.5kg ball falls from a building that Is 50m high. how much kinetic energy will it have when it has fallen half way to the gro

und?
Physics
1 answer:
castortr0y [4]2 years ago
4 0
Calculate velocity at halfway to the ground.

vfinal = root 2ad

v = root (2*9.81m/s^2*25)

v = 69.367175234 m/s

Kinetic energy = 1/2mv^2

Kinetic energy = 1/2 * (69.367175234 m/s^s^2

Ek = 2405.9025 Joules
You might be interested in
A car was at a 30km marker and began to drive. The car passed a 90km marker and the time had changed 30
dolphi86 [110]

Answer:

i think it's 2km pm

Explanation:

2km x 30 60.. start was 30, and now your at 90.. we had to determine how much time it took.. so 2 is the average.. or atleast per minute and sorry it i still didnt answer ur question lol im just trynna help

7 0
2 years ago
How do icebergs form
pishuonlain [190]

Answer:

They break off large ice sheets found at the North and South poles.

5 0
2 years ago
What must be true about a surface in order for diffuse reflection to occur?
balu736 [363]

Answer:

carpet

Explanation:

Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection.

The structure of carpet's surface is as shown. Thus it shows large amount of diffuse reflection.

4 0
3 years ago
What Is one of many factors that can determine the rate of alcohol absorption
Alla [95]
The percentage of the drink that finds the target and lands in your mouth.
5 0
3 years ago
The diagram shows the movement of air as a result of convection currents. At which point is the air at its highest density?
stellarik [79]

When you bring two objects of different temperature together, energy will always be transferred from the hotter to the cooler object.  The objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal.  We say that heat flows from the hotter to the cooler object.  Heat is energy on the move.  

Units of heat are units of energy.  The SI unit of energy is Joule.  Other often encountered units of energy are 1 Cal = 1 kcal = 4186 J, 1 cal = 4.186 J, 1 Btu = 1054 J.

Without an external agent doing work, heat will always flow from a hotter to a cooler object.  Two objects of different temperature always interact.  There are three different ways for heat to flow from one object to another.  They are conduction, convection, and radiation.

 

6 0
3 years ago
Read 2 more answers
Other questions:
  • A hill that has a 33.9% grade is one that rises 33.9 m vertically for every 100.0m of distance in the horizontal direction. At w
    10·2 answers
  • Please help me with these 3 questions!!
    6·1 answer
  • Last month, Sarah documented how her city suffered from acid rain. What type of pollution should the people in Sarah’s city try
    12·2 answers
  • You have landed on an unknown planet, newtonia, and want to know what objects will weigh there. you find that when a certain too
    13·1 answer
  • Consider a particle launched at a horizontal velocity v0 from a height h above the ground. 1. Derive an expression for the time
    14·1 answer
  • Electrical wire with a diameter of .5 cm is wound on a spool with a radius of 30 cm and a height of 24 cm.
    14·1 answer
  • A rope has one end tied to a vertical support. You hold the other end so that the rope is horizontal. If you move the end of the
    15·2 answers
  • Calculate the electric current that flows through a electric heater of power 1000watt when collected with 220 volt ac supply
    11·1 answer
  • The strongest known magnetic field is that of _____.
    10·1 answer
  • 12,3,14,10,13,8 step 3 of 3 : determine if the data set is unimodal, bimodal, multimodal, or has no mode. identify the mode(s),
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!