Physics
Physics, 02.04.2020 21:19, Sushmitarai9416

A uniform drawbridge 9m long is attached to the roadway by a frictionless hinge at one end and can be
raised by a cable at the other end. The bridge is at rest suspended 30 degrees above the horizontal when
the cable breaks. (a) Find the angular acceleration of the drawbridge just as the cable breaks. (b) What is
the angular speed of the drawbridge when it becomes horizontal?

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 22:00, baidentheodore617
Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i. e., a subspace of r 3 ). explain your reasoning
Answers: 2
image
Physics, 22.06.2019 02:00, edsimms21111
In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain
Answers: 2
image
Physics, 22.06.2019 11:00, kayla65u
I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.
Answers: 1
image
Physics, 22.06.2019 15:20, mjwaple57
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
Do you know the correct answer?
A uniform drawbridge 9m long is attached to the roadway by a frictionless hinge at one end and can b...

Questions in other subjects:

Konu
English, 19.03.2021 23:20
Konu
Mathematics, 19.03.2021 23:20
Konu
Physics, 19.03.2021 23:20