B) An object is attached to a spring executes a Simple Harmonic Motion (SHM) according to an equation of position, x with a function of time in second as given below:
x(t) = [8.8 cos (8 t)] m
i.
Find the amplitude,

Find the frequency in Hertz, Hz

Find the position, x at time, t= 88 s and

iv. Find the maximum velocity

Heat from the sun reaches earth to a. radiation b. convection c. conduction

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.