A horizontal force of magnitude 41.1 N pushes a block of mass 4.18 kg across a floor where the coefficient of kinetic friction is 0.594. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 4.85 m across the floor

Explanation:

Given:

Force, f = 41.1 N

Mass = 4.18 kg

Coefficient of kinetic friction, Uk = 0.594

Displacement, x = 4.85 m

Workdone, E = force × distance, x

= 41.1 × 4.85

= 199.335 J

= 0.2 kJ.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg