Answer:
90,000 J
Explanation:
Kinetic energy can be found using the following formula. 

where <em>m </em>is the mass in kilograms and <em>v</em> is the velocity in m/s. 
We know the object has a mass of 50 kilograms. We also know it is a traveling at a rate of 60 m/s. Velocity is the speed of something, so the velocity of the object is 60 m/s. 
<em>m</em>=50 
<em>v</em>=60 
Substitute these values into the formula. 

First, evaluate the exponent: 60^2. 60^2 is the same as multiplying 60, 2 times.
60^2=60*60=3,600 

Multiply 50 and 3,600 

Multiply 1/2 and 3,600, or divide 3,600 by 2. 

Add appropriate units. Kinetic energy uses Joules, or J. 

The kinetic energy of the object is 90,000 Joules
 
        
             
        
        
        
Answer:
a counterclaim
Explanation:
authors purpose is what an author wrote somthing for 
opinion is someones thoughts or "side" on a argument 
an arguement is a battle of opinions if that makes sense
 
        
             
        
        
        
Answer:
<h2>Ultraviolet Waves.</h2>
Explanation:
The Sun emits waves called "Solar Waves", which have a wavelengths between 160 and 400 nanometers. According to the electromagnetic spectrum, these waves are defined as Ultraviolet, which have a frequency around the order of  , which is really intense and high energy.
, which is really intense and high energy.
Therefore, the answer is Ultraviolet Waves.
 
        
             
        
        
        
Answer
given,
length of slender rod =80 cm = 0.8 m
mass of rod = 0.39 Kg
mass of small sphere = 0.0200 kg
mass of another sphere weld = 0.0500 Kg
calculating the moment of inertia of the system



using conservation of energy 




we know,
v = r ω


v = 1.084 m/s