That will depend on which course you're talking about. It will be a minor role in, say, Maritime Law or Comparitive Religion, but a major one in, say, Particle Physics or Linear Algebra.
Answer:
Negative acceleration occurs when the acceleration vector points to the left.
1. Object slowing down in the positive direction.
2. Object speeding up in the negative direction.
Following six statements:
1. T
2. F
3. T
4. T
5. F
6. T
Check direction of acceleration vector.
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs.
Answer:
The average force on ball by the golf club is 340 N.
Explanation:
Given that,
Mass of the golf ball, m = 0.03 kg
Initial speed of the ball, u = 0
Final speed of the ball, v = 34 m/s
Time of contact, ![\Delta t=0.003\ s](https://tex.z-dn.net/?f=%5CDelta%20t%3D0.003%5C%20s)
We need to find the average force on ball by the golf club. We know that the rate of change of momentum is equal to the net external force applied such that :
![F=\dfrac{\Delta p}{\Delta t}\\\\F=\dfrac{mv-mu}{\Delta t}\\\\F=\dfrac{mv}{\Delta t}\\\\F=\dfrac{0.03\ kg\times 34\ m/s}{0.003\ s}\\\\F=340\ N](https://tex.z-dn.net/?f=F%3D%5Cdfrac%7B%5CDelta%20p%7D%7B%5CDelta%20t%7D%5C%5C%5C%5CF%3D%5Cdfrac%7Bmv-mu%7D%7B%5CDelta%20t%7D%5C%5C%5C%5CF%3D%5Cdfrac%7Bmv%7D%7B%5CDelta%20t%7D%5C%5C%5C%5CF%3D%5Cdfrac%7B0.03%5C%20kg%5Ctimes%2034%5C%20m%2Fs%7D%7B0.003%5C%20s%7D%5C%5C%5C%5CF%3D340%5C%20N)
So, the average force on ball by the golf club is 340 N.
<span>The relationship between wavelength, frequency and energy of Electromagnetic Radiation is given by
E = hf = hc/lamba -------(1)
So from (1) there's a linear relationship between E and f. The higher the frequency, f, the higher the energy E.
Also from (1) it is obvious that the lower the wavelength, lambda, the higher the energy, E.
This means the answer is D.</span>