Answer:
It have 1.359 joule kinetic energy.
Explanation:
- Kinetic energy is defined as the energy of any object due to its state of motion.
- Mathematically kinetic energy can be calculated as:
K.E = 
...........................equation 1
where,
m= mass of object
v= velocity of that moving object
mass= 2500 lbs = 
kg.
velocity= 80mph= 
= 
.
- Substituting the values in equation 1, we get;
K.E= * * 
K.E= 
Answer:
brightness that we observe from a star is related to the energy produced and the distance to the Earth
Explanation:
In stars, the color that we observe is directly related to the temperature of the star by the y of the Wien displacement.
λ_{max} T = 2,898 10³
the brightness that we observe from a star is related to the energy produced and the distance to the Earth
Answer:
a:it speed up
b:it should be positive since final
velocity is larger than initial velocity
c:acceleration is approximately 4.5
m/s^2
Explanation:
initial velocity=u=4.47m/s
Final velocity=v=17.9m/s
Time=t=3 seconds
a:the car speed up since the velocity
increased
b:change in velocity is positive
because final velocity is larger than
initial velocity
17.9-4.47=13.43 m/s
c: acceleration=(v-u)/t
acceleration=(17.9-4.47)/3
acceleration=13.43/3
acceleration=4.5 m/s^2
Answer:
Thread.
Explanation:
The most common form consists of a cylindrical shaft with helical grooves or ridges called threads around the outside.
