5- A 2.0 kg block of aluminum (specific heat= 897 Jkg-K) is at an initial temperature of 300 K What will its final temperature be if (3.35 x 10 J )of thermal energy is transferred to the block?

A. 474K
B. 174k
C. 803k
D. 487k

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?