Start with the equation:
Rearrange the equation for time to get:
Distance = 300
speed = 20
Insert into the new equation:
15 seconds is your answer
Isothermal process<span> is a </span>change<span> of a </span>system<span>, in which the </span>temperature<span> remains constant: Δ</span>T<span> = 0. So, if the thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged than this process is isothermal.
</span><span>The Joule's second Law states that the internal energy of a fixed amount of an ideal gas depends only on its temperature. So, isothermal processes are of great interest for ideal gasses.</span>
Answer:
Absolute magnitude
Explanation:
The brightness a star would have if it were at 10 pc from Earth is called Absolute magnitude.
The final velocity of the rocket is 77.5 m/s in the direction of motion
Explanation:
The given in the problem is:
1. The rocket travels 600 m
2. It starts from rest
3. It is being accelerated uniformly at rate 5 m/s²
We need to find the final velocity
We can use this rule to solve the problem
→ v² = u² + 2 a s
where v is the final velocity, u is the initial velocity, s is the distance
and a is the acceleration
→ u = 0 m/s , a = 5 m/s² , s = 600 m
Substitute these values in the rule above
→ v² = (0)² + 2 (5)(600)
→ v² = 6000
Take √ for both sides
→ v = 77.5 m/s in the direction of motion
The final velocity of the rocket is 77.5 m/s in the direction of motion
Learn more:
You can learn more about the change in velocity in brainly.com/question/12639288
#LearnwithBrainly
Answer:
-14.2m/s
Explanation:
Given parameters:
Initial velocity of the ball = 25m/s
Time = 4s
Unknown:
Final velocity of the ball = ?
Solution:
To solve this problem, we use the expression below;
v = u - gt
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity
t is the time
v = 25 - (9.8 x 4) = -14.2m/s