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If a 0.9-kg block suspended from the end of a spring oscillates with a frequency of 2.2 Hz, what is the value of the spring constant?
An archer shoots an arrow horizontally at a target 15m away. What was the initial speed of the arrow
A computer is reading data from a rotating CD-ROM. At a point that is 0.030m from the center of the disk, centripetal acceleration is 120m/s2. What is the centripetal acceleration at a point that is 0.05 m from the center of disc.
As a baseball is being caught, its speed goes from 25 to 0 m/s in 0.007 seconds. What is the force acting on the ball
An extension cord made of two wires of diameter 0.129cm (no. 16 copper wire), How much power is dissipated in the cord
A lead block is suspended from the underside of a 0.8 kg block of wood of density of 720 kg/m3. determine the mass of the lead block
A dolphin leaps out of the water at an angle of 36.1 ° above the horizontal. Find the magnitude of the vertical component of the velocity
A horizontal spring with force constant k = 4.80N/m connects the other end of the rod to a vertical wall. The rod is in a uniform magnetic field B = 0.310T directed into the plane.
A 77.4 kg manm lifts a 1.3 kg box from the floor a height of 1.1m in 2.1 seconds, what is the change in gravitational potential energy
A woman holds a tube of lipstick 2.3 cm from a spherical mirror and notices that the image of the tube is upright and one fifth its normal size, Determine the position of the image. Is it in front of or behind the mirror
Blood can carry excess energy from the interior to the surface of the body, where the energy is dispersed in a number of ways. determine the temperature of the blood
An athlete is in an 800 m running sprint race. One lap around the track is 400 m. What is the athlete's average speed during this first lap of the race
A 69.00 kg skier is going down a slope oriented 33° above the horizontal. The area of each ski in contact with the snow is 0.13 m2. Determine the pressure that each ski exerts on the snow.
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