The answer to this question is b
Answer:
e) True Yes both are constant
Explanation:
Let us propose the solution of the problem before reviewing the statements, we use Newton's second law
F - fr = m a
N- W = 0
N = mg
The equation for the force of friction is
fr = μ N
F - μ mg = m a
F = m (a- μ g)
Now let's review the claims
.a) False. Normal force and friction are constants.
.b) False. Both are constant.
.c) False. Both are constant.
d.) False
e) True Yes both are constant
Short distance to turn the circumference of the wheels. Mechanical advantage is load/effort I think
Answer:
110 N
Explanation:
When a force is applied on a body and body does not move, it means the body remains at rest.
In this condition, there is a contact force between the body and the floor which is called static friction.
Th static friction force is a self adjusting force and comes into play when the body is at rest.
Here, the applied force is 110 N and the chest is not moving, that means a static friction force is acting between the chest and the floor. This static friction force is the force of contact between the chest and the floor. The static friction force is equal to the applied force when the body does not move.
So, the contact force between the chest and the floor is 100 N.
From my research, the question has the following choices:
a.the lowest frequency at which a standing wave is possible
b. the highest frequency at which s standing wave is possiblec. the only frequency at which a standing wave is possible
d. the only frequency at which standing wave is not possible
From there, the correct answer is A.
