What is the centripetal acceleration of the hammer
An athlete whirls a(n) 7.16 kg hammer tied to the end of a(n) 1.2 m chain in a horizontal circle. The hammer moves at the rate of 1.47 rev/s..(a) What is the centripetal acceleration of the hammer?(b) What is the tension in the chain?
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A hiker shouts toward a vertical cliff 465m away. The echo is heard 2.7s later. What is the speed of sound of the hikers voice in air?
Determine two different possible ways for a player to make a free throw in basketball. In both cases give the initial speed, initial angle, and initial height of the basketball.
A second entrance at ground level is open to almost stagnant air. How does this construction create an airflow through the burrow?
At what distance from a backstop will a package need to be placed depending on its weight and knowing it has to hit the backdrop at a velocity of 69 in/sec on a 10 deg angle. What is the distance for every 5 lbs of package weight?
A bat flying at 4.80 m/s is chasing an insect flying in the same direction. If the bat emits a 40.0-kHz chirp and receives back an echo at 40.4 kHz, what is the speed of the insect? (Take the speed of sound in air to be 340 m/s.)
whe helium nucleus is seen to move off at and angle of theta= -45 after the collision. Determine the angle of the neutron and the final speeds of each particle after collision.
A certain Christmas tree ornament is a silver sphere having a diameter of 8.10 cm. Determine an object location for which the size of the reflected image is four-fifths the size of the object. Use a principal-ray diagram to arrive at a description
A block rest on table top undergoing simple harmonic motion (a(tabletop)= -2 pi/T)^2 x, of amplitude A and period T with vertical oscillations. Discuss motion in acceleration frame of the tabletop at highest point table top motion. Give a detailed
An airplane flies 192 km due west from city A to city B and then 298 km in the direction of 30° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A (km)?
When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 93 °C, while the other bar reaches 255.0 °C. What is the specific heat capacity of the other substance?
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