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Q1. The two rotating systems shown in the figure differ only in that two identical movable masses are positioned at different distances from axis of rotation. If you release the hanging blocks at the same time from rest, and if the ropes do not slip, which block lands first?
Q2. After being accelerated to a speed of 1.8×10^5 m/s , particle enters a uniform magnetic field of strength 0.800 T and travels in a circle of radius 30.0 cm (determined by observing where it hits the screen). The results of this experiment allow one to find m/q.
Q3. Susie (of mass 86 kg) is rollerblading down the sidewalk going 32 miles per hour. She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration?
Calculate the magnitude of the gravitational force exerted on a 611-kg satellite that is a distance of two earth radii from the center of the earth, What is the magnitude of the earth's acceleration
he plane is traveling horizontally at 150.0 m/s at a height of 70.0 m above the ground. Illustrate what horizontal distance does the package travel before striking the ground?
The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -69°C to +36°C. How can one compensate for this expansion
The dial on an FM radio contains numbers ranging from about 88 to about 108. What is the corresponding range of wavelengths
A 250MW laser pulse is focused with a lens to a diameter of 2.5?m. What is the laser beam's electric field amplitude at the focal point
It is proposed that future space stations create an artificial gravity by rotating. What rotation period will provide "normal" gravity
A physics lecture room has a volume of 251m^3. Calculate the mass of the air in the room
A 0.6410-kg ice cube at -12.40°C is placed inside a chamber of steam at 365.0°C. calculate the final temperature of the puddle
find the angular speed after the grindstone. what must be its minimum mass so that material on its surface remains in place during the rapid rotation.
The brick wall of a building has dimensions of by and is thick. How much heat ?ows through the wall a period when the average inside and outside temperatures are, in that order.
you need to store 25J of energy in the magnetic field of a solenoid. The solenoid hass 100 circular turns of diameter 5.0cm, What is the energy density inside the solenoid
An expandable cylinder has its top connected to a spring with force constant 2 x10^3 N/m. The cylinder is filled with 6 L of gas with the spring relaxed at a pressure of 1.0 atm and a temperature of 20°C.
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