Answer:
The frictional force points up the incline.
Explanation:
It is given that, the crate is at rest on the incline. We know that the forces acting on the crate are force of gravity, normal and the force of friction. We know that the frictional force is the force that opposes the motion of an object.
In this case the crate is at rest. The crate will have static friction, that points up the incline.
So, the correct option is (A) "the frictional force points up the incline".
Answer:
With the decreasing object mass, the acceleration will also decrease.
Explanation:
Newton's second law of motion infers the relation between force F, acceleration a and mass m of a body. It is expressed as:
F = ma
When force is constant, we get m α 1/a, that is mass is inversely proportional to the acceleration of the body.
Hence when object's mass decreases, the acceleration will increase. and vice versa
Answer:if you go to g○○gle there's a camera icon next to the search bar, click on that and take a photo of your test, then they'll find the answers that other people answered or needed, hope that helps
Explanation:
Answer : The volume of water in the pool is, 2473 ft³
Explanation :
First we have to calculate the average depth.
Given:
Diameter = 30 ft
Depth range : 1 to 6 ft linearly
average depth =
Now we have to calculate the volume of water in the pool.
Volume = area × average depth
V = π × (radius)² × 3.5
V = π × (30/2)² × 3.5
V = π × (15)² × 3.5
V = π × 225 × 3.5
V = 3.14 × 225 × 3.5
V = 2472.75 ft³ ≈ 2473 ft³
Therefore, the volume of water in the pool is, 2473 ft³
The speed of a wave is dependant on four factors: wavelength, frequency, medium, and temperature.
