Average velocity is a vector unit (i.e. includes magnitude <em>and </em>direction) calculated by working out distance ÷ time:
80 metres ÷ 20 seconds = 4 metres/seconds (m/s)
Therefore, your final answer is C. 4 m/s south.
It moves to 56 km per hours
Answer:
4.78 × 10⁻³ T.m²
Explanation:
The expression for the magnetic flux is given by
∅ = BAcosФ
where B = magnetic field strength
A = Area of circular loop = πr²
r = radius of the wire loop
substitute πr² for A in the first equation
∅ = Bπr²cosФ
∅ = 2.55 × 3.14 × 0.025² × cos 17.3°
∅ = 4.78 × 10⁻³ T.m²
OR
0.00478 T.m²
I'm not quiet sure what exactly this question is asking but some examples of vectors include displacement, velocity, position, force, and torque.
Answer
D. The acceleration vector of the planet points towards the center of the circle.
Explanation
For planetary motion , the velocity vector is always in a direction that is tangential to the direction of motion, not towards the center. Even though the speed of the planet may stay constant, it's velocity changes because it is constantly changing it's direction.
The centripetal force, which in this case is the force of gravity always points in the direction of the the center. The acceleration vector always points in the direction of the of the center of the circle just like the centripetal force.
