Answer: The first one
Explanation:
Because it’s the higher frequency
Answer:
A pendulum is weight suspended from a pivot so that it can swing freely
Answer:
The speed on boat in still water is 
and the rate of the current is 
Explanation:
Since speed , 
Therefore speed of motor boat while traveling upstream is
and speed of motor boat while traveling downstream is
Let speed of boat in still water be 
and rate of current be 
Therefore 
----(A)
and 
------(B)
Adding equation (A) and (B) we get
=>
------(C)
Substituting the value of in equation (A) we get
Thus the speed on boat in still water is and the rate of the current is
1.Epithelium- lines and covers surfaces
2. Connective tissue- protect, support, and bind together
3. Muscular tissue- produces movement
4. Nervous tissue- receive stimuli and conduct impulses
Hope i helped u :)
Answer:
C
Explanation:
Given that a liquid at rest in a fixed container exerts a force perpendicular to the wall of the container. Two students make claims about the microscopic cause of this force. Student A says that the force exerted by individual molecules as they bounce off the wall is always perpendicular to the wall. Student B says that the molecules may strike the wall at angles that are not perpendicular. Which student is correct and why?
The correct answer is option C
Student B . The molecules in a liquid are in random motion at the microscopic scale. For every atom that hits at an angle to one side of perpendicular, there is likely to be another atom hitting at the same speed at the same angle on the other side of perpendicular. On average the nonperpendicular components cancel
