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Consider a simple pendulum with L = 2.4 m and m = 1.8 kg. Suppose the mass is initially at rest at the lowest point on its trajectory when it is given an impulse such that it then has a velocity of 0.17 m/s. What is the total mechanical energy of the oscillator?
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 meter per second. Find the velocity of the third piece?
A 12.0-g piece of Styrofoam carries a net charge of -0.746 µC and is suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
a race car travels around a circuit at a constant speed of 45 m/s. it first heads East for 1min, then SOuth for 1 min, how far does the car drive
Two blocks are placed in contact on a horizontal frictionless surface. The smaller box has less mass than the larger box. A force F is applied to the small box as shown so that the boxes accelerate to the right.
A 79-kg person is exposed to 83 mrem of α particles (RBE = 12). How much energy (in joules) has this person absorbed
An electron traveling to the left with velocity 5*10^5m/sec, and making an angle of 30 degrees with the horizontal, moves into a magnetic field of 1.0T directed toward the observer. what is the magnitude and direction of the magnetic force on the ..
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
The period of a pendulum is 0.215 s on Earth. The period of the same pendulum is found to be 0.467 s on planet X, whose mass is equal to that of Earth.
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 40°. For a speed of 35 m/s, at what value of the distance d should a drive..
A flat, round iron ring 7.00cm in diameter has a current running through it that produces a magnetic field of 77.2?T at its center. find the maximum torque the external field can exert on the ring
A screen is placed 50cm from a single slit. A laser of wavelength 635nm is shown on the slit resulting in a single slit diffraction pattern, What is the width of the central maximum
The period of the orbit is 2.1 hours. The radius of the planet is 4.50 × 106 m. Illustrate what would be the true weight of the satellite if it were at rest on the planet’s surface?
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