Answer:
Answer:
Answer:
v = 609 m/s
Explanation:
mass of lead bullet, m = 55 g
T1 = 24°C
T2 = 327°C
Let v be the velocity
kinetic energy of bullet
K = 1/2 mv^2 = 0.5 x 0.055 x v^2
72 % of kinetic energy is used to melt the lead bullet .
Heat gained by lead = m x c x ΔT + m x L
where, c be the specific heat of lead and L be the latent heat of lead
c = 536 J/kg°C
L = 23000 J/kg
0.0275 x v^2 = 0.055 (536 x 303 + 23000)
v = 608.9 m/s
v = 609 m/s
Explanation:
<span>Distance = Speed x Time, we are going to derived our equation.
You can compute for the average speed using the equation: speed = distance ÷ time.
So plugging in our data, it will look like:
Speed = distance / time
= 100 m / 50 s
= 2 m/sec
Juan average speed is 2 m / sec. </span>
Answer:
<u><em>20 m/s.</em></u>
Explanation:
Mass of body m: 10kg
The kinetic energy of the body is given as; 
Value of Kinetic energy K.E = 2000 Joules
V is the body's velocity, and M is the body's mass.
Calculating the value of velocity; 
= 
Velocity maintained by the body having a kinetic energy of 2000J is
20 m/s.
Answer:
A force that resists motion between two objects that are in contact; rubbing together of two objects = <em>Friction</em>
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The tendency of an object to float = <em>Buoyancy</em>
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A push or pull; any quantity that produces or is capable of producing motion = <em>Force</em>
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A universal force that every mass exerts on every other mass; this keeps us down on earth = <em>Gravity</em>
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A free body diagram is a diagram that labels all the forces acting on an object. This allows us to find the net force on an object = <em>Free body diagram</em> (it literally says it in the definition lol)
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Answer: An exercise, activity, or workout that targets a specific training need Progression - Gradually increasing your skill level and ability over time Overload -Working your body harder than usual to improve how it functions Reversibility - Losing what you have gained by taking time off Tedium - getting bored by doing the same thing
Explanation:
