Physics, 30.10.2019 05:31 asmith219771
an applied force of 20 n is used to accelerate an object to the right across a
frictional surface. the object encounters 10 n of friction. use the diagram
to determine the normal force, the net force, the coefficient of friction
between the object and the surface, the mass, and the acceleration of the
object. (neglect air resistance.)
Answers: 1
Physics, 22.06.2019 14:00
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Physics, 22.06.2019 18:20
Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b
Answers: 2
Physics, 23.06.2019 02:40
Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0Ă—1026 kg , radius = 2.5Ă—1010 m , rotation period 16.1 h , orbital period 6.01Ă—104 d and is 4.6Ă—109 km from the sun.]
Answers: 2
an applied force of 20 n is used to accelerate an object to the right across a
frictional surfa...
frictional surfa...
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