Answer:0.017
Explanation:
Given
mass of person 
mass of sled 
velocity of person 
let u be the combined velocity of person and sled
conserving momentum




(b)Total distance traveled by sled and man is 30 m
deceleration Provided by surface is 
where
is coefficient of kinetic friction
using 


To solve this problem we will apply the concepts related to electric potential energy. This relationship shows us that energy is equivalent to half the product between the capacitance of the body by the squared voltage. Mathematically it can be expressed as,

Here,
C = Capacitance
V = Voltage
E = Energy
The initial capacitance would then be given by



Energy stored in the capacitor with 3V is


Therefore the energy stored in the capacitor if it is charged to 3V is 8mJ
Answer:
Cinder blocks
Explanation:
From safety training guides, whenever there is inadequate support, poor
construction, or a movement in the components of the
scaffold such as the coupler as well as the base upon which the
scaffold structure is built, there will be a great danger of collapse.
In light of this safety rule, Cinder blocks such as sandcrete blocks, bricks e.t.c shouldn't be used to support scaffold because they
have a high tendency of being crushed under load
Length of wire (L)=2.35m
Mass of wire (m)=0.100kg(m)=0.100kg
Tension in the wire (T)=0.042m
<h3>
What is tension?</h3>
Any physical object that is in contact with another one can apply forces to that item. Depending on the sorts of objects in touch, we label these contact forces differently. We refer to the force as tension if a rope, string, chain, or cable is one of the things applying the force.
Ropes and cables can effectively convey a force over a long distance, making them valuable for exerting forces (e.g. the length of the rope). For instance, a team of Siberian Huskies can pull a sled by attaching ropes to them, allowing the dogs to move more freely than if they had to push against the sled's rear surface with their typical effort.
learn more about tension refer:
brainly.com/question/23560853
#SPJ4
Answer:
The sun
Explanation:
if they get too close even the heat that radiates of of it would burn you or give sunburn bad and the sun is a shining ball of energy it is way to hot for a human to get close