2. (5.1.1 #6) A 10 kg mass stretches a spring 70 cm in equilibrium. Suppose a 2 kg mass is attached to the spring, initially displaced 25 cm below equilibrium, and given an upward velocity of 2 m/s. Find its displacement for t > 0. Find the frequency, period, amplitude, and phase angle of the motion.

A vertical spring scale can measure weights up to 170 N . The scale extends by an amount of 11.5 cm from its equilibrium position at 0 N to the 170 N mark. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.05 Hz . Ignoring the mass of the spring, what is the mass m of the fish?

An object of mass 1,996kg is attached to a spring with a spring constant of 3.53 x 10^5 N/m. Suppose the mass is pulled to the left and released to set it into oscillation l. Calculate the frequency of oscillation.

The block is at rest as shown. What is the peiod of the oscillation if the block is pulled down by 10 cm, in seconds? Use g = 10 m/s2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

The position of a 48 g oscillating mass is given by x(t)=(2.0cm)cos10t, where t is in seconds. Determine the amplitude. (Express your answer in centimeters). Determine the period. (Express your answer in seconds). Determine the spring constant. (Express your answer in newtons per meter). Determine the maximum speed.(Express your answer in meters per second). Determine the total energy. (Express your answer in joules). Determine the velocity at t  = 0.40  s. (Express your answer in meters per second).

A 25-turn circular coil has radius of r = 3 [cm] and a resistance of R = 10 [Q]. The coil is in a uniform magnetic field of 0.46 [T] that is perpendicular to the plane of the coil. a. magnetic flux? What is the value of the b. What is the value of the induced emf and the induced current in the coil? lemf| = [V] I = [A] Now, the value of the magnetic field is increasing from 0.46 [T] to 2.1 [T] in At = 1.4 [s]. C. emf? lemf| I = What is the value of the induced [V] d. current in the coil? [A] What is the value of the induced