Physics, 12.03.2021 15:30, kyzerlinda
Sally swings a 0.45 kg hammer with a speed of 5 m/s, striking the head (flat back end) of a metal nail with its tip (sharp front end) resting on an oak wood surface. The tip of the metal nail has an area of 3 mm2 and the duration of the impact is 5.0 ms. The wood has a ultimate compressive strength of 6 MPa. Calculate the pressure applied by the tip of the nail onto the wood surface. Will the nail penetrate the wood
Answers: 2
Physics, 22.06.2019 07:00, dsperez201938
We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
Answers: 1
Physics, 22.06.2019 10:00, blackjack73
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Physics, 22.06.2019 10:10, xavierfox1721
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
Physics, 22.06.2019 10:30, legendman27
You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.
Answers: 3
Sally swings a 0.45 kg hammer with a speed of 5 m/s, striking the head (flat back end) of a metal na...
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