What is the maximum acceleration of the needle
A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. What is the maximum acceleration of the needle?
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The entrance of the straw is located at the bottom of the 15cm deep shake. What is the absolute pressure at the entrance of the straw?
Heather and Jerry are standing on a bridge 53 above a river. Heather throws a rock straight down with a speed of 12 m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much t
A high-frequency photon is scattered off of an electron and experiences a change of wavelength of 8.0×10-4 .At what angle must a detector be placed to detect the scattered photon (relative to the direction of the incoming photon)?
A nonconducting solid sphere of radius 2.80 cm carries a uniformly distributed positive charge of 8.70×10-9 C. Calculate the magnitude of the electric field at a point 1.60 cm away from the center of the sphere.
A simple pendulum consists of a bob of mass 1.8kg attached to a string of length of 2.5m. The pendulum is held at an angle of 30 degrees from the vertical by the light horizontal string attached to a wall. Calculate the tension in the horizontal
The water exerts a force of 240 N east. If the boat (including crew) has a mass of 320 kg, what are the magnitude and direction of its acceleration?
find the magnitude and direction of the net external force on the crate
The wire is 5m long and is secured at one end to the ceiling and hangs vertically. What is the largest mass that can be supported on the end of the wire before it breaks?
The object falls freely for 4.64 m in the first second. What is the magnitude of the acceleration due to gravity on the planet?
Determine the tension in the string, the acceleration of the object, and the speed with which the object hits the floor. Verify last answer by using principle of conservation of energy to find speed with which object hits floor.
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