A mass hanging from a spring oscillates with a period of 0.35 s. Suppose the mass and spring are swung in a horizontal circle, with the free end of the spring at the pivot. Part A What rotation frequency, in rpm, will cause the spring's length to stretch by 25%? Express your answer in revolutions per minute. ► View Available Hint(s) frot = 15. ΑΣΦ ? rpm

A simple pendulum of length 2.3 m makes 4.0 complete swings in 37.0 s. Part A What is the acceleration of gravity at the location of the pendulum? Express your answer using two significant figures. Π| ΑΣΦ g= Submit Provide Feedback Request Answer ? m/s²

A large solid disk with radius rb= 1.1m has a second, smaller solid disk with radius rs= 0.32m and mass ms= 3.5kg attached to it. Wrapped around the smaller disk is an ideal string with a hanging mass mh= 2.3kg attached to it. The hanging mass starts out a distance yi= 5.2m above the ground as shown in Figure 1, and falls towards the ground with constant speed. a) What is the torque about the center of the pulleys? Remember torque is a vector. b) What should the mass of the larger pulley be such that the system of pulleys has an angular acceleration of α = 1.2rad/s ? c) How long will it take the hanging mass to hit the ground?

The 2.50 kg cube in the figure has edge lengths d= 7.80 cm and is mounted on an axle through its center. A spring (k = 1450 N/m) connects the cube's upper corner to a rigid wall. Initially the spring is at its rest length. If the cube is rotated 3.00° and released, what is the period of the resulting SHM? Number i Units WORKKA k

An object of unknown mass is attached to an ideal spring with force constant 110 N/m and is found to vibrate with a frequency of 5.50 Hz. Part A Find the period. Express your answer in seconds. Part B Find the angular frequency. Express your answer in radians per second. Part C Find the mass of this object. Express your answer in kilograms.

Rj

There are more than 300 species of hummingbirds in the world and about 10 species regularly breed in the United States. One of which is the Ruby-throated Hmmingbird who can flap its wings with an angular speed of 332 rad/s. Calculate the period of its flapping motion.

An 1500 kg automobile has springs with k = 1.4×104 N/m. One of the tires is not properly balanced; it has a little extra mass on one side compared to the other, causing the car to shake at certain speeds. Part A If the tire radius is 42 cm, at what speed will the wheel shake most? Express your answer using two significant figures. VΞΑΣΦ V = Submit Request Answer ? m/s

NOTE: The answer of 85.715 rpm was given to me and was incorrect. What is the correct answer?

An object of unknown mass is attached to an ideal spring with force constant 110 N/m and is found to vibrate with a frequency of 6.00 Hz. ▼ ▼ Part A Find the period. Express your answer in seconds. T = Submit Part B 1= Find the angular frequency. Express your answer in radians per second. Submit 15. ΑΣΦ Part C Request Answer m= 1951 ΑΣΦ Request Answer Find the mass of this object. Express your answer in kilograms. Submit 5 ΑΣΦ Request Answer OMIC ? OMIC ? S rad/s ESWA ? kg