I wanna say A.
Not a 100% sure but this is what i think
hope it helps!
Answer:
I'm pretty sure its A and C
Explanation:
makes sense
Answer:
<em>The mass of the block is 0.025 kg</em>
Explanation:
<u>Mass-Spring Harmonic Motion</u>
When a mass m is attached to a spring of constant k, they produce a simple harmonic motion which angular frequency is
We also know
which means
Squaring
Solving for m
We have
Operating
Simplifying and computing
The mass of the block is 0.025 kg
Answer:
120 miles
Explanation:
Speed = distance traveled/ time taken.
Distance traveled = speed * time taken
Speed = 40 miles per hour, time = 3 hours.
Distance = 40*3
The train's traveled distance is 120 miles.
Answer:
v_average =0
Explanation:
In kinematics the average speed defined with the distance interval traveled in a given time interval
V = Δx /Δt
in this case the tennis ball travels a distance h to the highest point and a distance h from the highest point to the floor, so the distance you travel zero
Dy = h -h = 0
therefore the average speed should be zero
v_average =0