Answer:
The kinetic energy of an object is given by: Kinetic energy = 1/2 * mass * velocity If the kinetic energy of the pendulum at the top of its swing is 0, then this tells us that the velocity of the pendulum at that point is 0
4+15+11+5+7+10= 50 cm
10cm was the missing one
5/8=0.625
4 and 5/8=4+5/8=4+0.625=4.625
you can just seperate the fractions and add
Answer:
I would reject the null hypothesis.
Step-by-step explanation:
The test is a two-tailed test because it is stated that the alternate hypothesis is two-sided.
Degree of freedom = n - 1 = 350 - 1 = 349
At 349 degrees of freedom and 5% significance level, the critical values are -1.96702 and 1.96702
Conclusion:
Reject the null hypothesis because the test statistic 3 falls outside the region bounded by the critical values -1.96702 and 1.96702.