Frictional force always opposes applied force, so the net force on the cart would have to be 19N - 1.7N. The acceleration can then be solved by using the relation: F = ma. This is shown below:
Net force = 19 - 1.7 = 17.3 N
Acceleration = Force / mass
Acceleration = 17.3 / 2
Acceleration = 8.65 N/m
Answer:
What is quantum physics? Put simply, it's the physics that explains how everything works: the best description we have of the nature of the particles that make up matter and the forces with which they interact. Quantum physics underlies how atoms work, and so why chemistry and biology work as they do.
1. radiation
2. convection
3. condunction
Answer:
The boat should point in angle to the perpendicular to the shore is, Ф = 12° 22'
Explanation:
Given data,
The velocity of the boat, V = 8.2 m/s
The velocity of the flow of the river, V' = 1.8 m/s
Let Ф formed by the boat perpendicular to the shore,
The two velocity components along the perpendicular axes are V and V'
Therefore,
tan Ф = V' / V
= 1.8 / 8.2
= 0.2195
Therefore,
Ф = tan⁻¹ (0.2195)
= 12° 22'
Hence, the boat should point in angle to the perpendicular to the shore is, Ф = 12° 22'
