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A pinada, practically in a shape of a slender thin rod of length mass 4.0 kg is hanging from the tree branch after being hinged at one end. A kid at the party strikes a pinada with a plastic baseball bat and fails to break it. After a hit, the bottom of the pinada has a speed of 5.0 m/s.
Estimate how high the pinada will swing and express your answer in terms of the angle the pinada makes with the vertical.
What is the angle. The velocity of a particle moving in the xy plane is given by = (5.5t - 4.5t2)i + 8.3j
Calculate the mass of a solid gold rectanglar bar that has dimensions lwh = 4.20 cm x 12.0 cm x 30.0 cm. (the density of gold is 19.3x10^3 kg/m^3.)
An outfielder throws a 0.150 kg baseball at a speed of 36.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position
The radioactive isotope has a half-life of 2.60 y and has a half-life of 87.0 days . They each emit positive β- particles or positrons. what will the count rate be at that time
While eating lunch with friends Diana spots her boyfriend having lunch, and having a good time with, How fast must Diana through the apple so that it hits her boyfriend
A 0.267 T magnetic ?eld in a mass spectrometer causes an isotope of sodium to move in a circular path with a radius of 0.068 m. what is the isotope's mass
You are driving to the grocery store at 20 . You are 110 from an intersection when the traffic light turns red. Assume that your reaction time is 0.50 and that your car brakes with constant acceleration.
A stretched string fixed at each end has a mass of 50 g and a length of 7.2 m. The tension in the string is 47 N. What is the vibration frequency for this harmonic?
A 0.17kg ball is thrown vertically upwards with a velocity of 34m/s at the edge of a 22m cliff. Neglect air resistance. calculate The height to whcih the ball rises above the cliff
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin(2?t), Find the angular frequency of the driven system
a uniform metal plate of edge 25 cm has a square section of edge 5.0 cm cut out of it.a where is the center of gravity
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