Answer:
yes
Explanation:
we can clearly say that our ancestor are our guide.
Because of they give us different knowledge about evolution of life and etc.
Answer:
262.5Pa
Explanation:
Given parameters:
P1 = 175Pa
T1 = 300K
T2 = 450K
Unknown:
P2 = ?
Solution:
To solve this problem, we are going to use an adaptation of the combined gas law.
=
Insert the parameters and solve;
=
P2 = 262.5Pa
1).
Time = (distance) / (speed)
Time = (1000 meters) / (331 m/s)
<em>Time = 3.02 seconds</em>
2).
Acceleration = (change in speed) / (time for the change)
Change in speed = (second speed) - (first speed)
Change in speed = (50 m/s) - (20 m/s) = 30 m/s
Acceleration = (30 m/s) / (5 seconds)
<em>Acceleration = 6 m/s²</em>
Answer:
(a) Angular momentum of disk is 
(b) Angular velocity of the disk is 
Explanation:
Given
Rotational inertia of the disk , 
Torque delivered by the motor , 
Torque is applied for duration , 
(a)
Magnitude of angular momentum of the disk = Angular impulse produced by the torque

=>
Thus angular momentum of disk is 
(b)
Since Angular momentum , 
where
= Angular velocity of the disk


Thus angular velocity of the disk is 