The angular momenta of a particle in four different situations are (1) ℓ = 3t + 4; (2) ℓ = −6t2; (3) ℓ = 2; (4) ℓ = 4/t In which situations is the net torque acting on the particle negative and increasing in magnitude?

Short Essay:  Explain the 5ps of policy design.  When explaining them, rank them in order of most important/effective to least important/effective in your opinion.

Provide 2 examples of mitigation and 2 examples of adaptation in terms of addressing global warming concerns.

 Explain the difference between renewable and non-renewable resources?

_____ of climate scientists worldwide agree that climate change-global warming is due to human activities.

Short Essay:  Discuss the energy transition by breaking down the figure above.  Please, please remember the effort required on these questions.

Consider the pendulum shown below, consisting of a disk of of mass 0.5 kg and radius 10 cm and a massless rod of length 0.5 m. What is the period of small oscillations of the pendulum in seconds?

Use the wave equation to find the speed (in m/s) of a wave generated by y(x,t) = (2.00 mm) sin[(20 m−1)x−(4.0 s−1)t].

A uniform rod AB is 1.2 m long and weighs 16 N. It is suspended by mass-less strings AC and BD as shown below. A block P weighing 96 N is attached at E, 0.30 m from A. The magnitude of the tension force in the string BD (in N) is:

Three 5.0 kg spheres are held at distances d1=d2= 0.54 m apart as shown in the figure. What is the potential energy (in nJ) of the system? Note: 1 nJ = 10-9 J