Depending on
whether the object in question gains or loses energy.
Review questions
1. Ex...
Physics, 11.06.2021 08:20 trueeriksonweav
Depending on
whether the object in question gains or loses energy.
Review questions
1. Explain the meaning of the term work done and give an
example of where work is done.
2. Calculate the total work done in the following examples:
a) A 20 kg log lifted 2 m into the air
b) Thirty 6 kg boxes lifted onto a shelf 1.5 m high
c) A car of mass 1400 kg pushed 50 m along a road
(u kinetis = 0.3)
d) A concrete slab of mass 200 kg pulled 10 m up a slope at a
angle of 30° to the horizontal (u, = 0.6).
kinetic
3 Do
*1​
Answers: 3
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 14:30
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
Physics, 23.06.2019 02:30
Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare
Answers: 2
Computers and Technology, 16.11.2019 03:31
Computers and Technology, 16.11.2019 03:31