Answer:
The maximum speed of ball is 0.784 m/s.
Explanation:
Given that,
Amplitude = 0.552 m
Angular frequency = 1.42 rad/s
We need to calculate the maximum speed of ball
Using formula of speed
Where, A = amplitude
= angular frequency
Put the value into the formula
Hence, The maximum speed of ball is 0.784 m/s.
Answer:
0.686 g of ice melts each second.
Solution:
As per the question:
Cross-sectional Area of the Copper Rod, A =
Length of the rod, L = 19.6 cm = 0.196 m
Thermal conductivity of Copper, K =
Conduction of heat from the rod per second is given by:
where
= temperature difference between the two ends of the rod.
Thus
Now,
To calculate the mass, M of the ice melted per sec:
where
= Latent heat of fusion of water = 333 kJ/kg
Hello!
Remember that impulse is equivalent to:
Impulse = force (N) × time (s)
Plug in the given force and time:
Impulse = 25 × 32
Impulse = 800 Ns