Alpha radiation, i just took a quiz and this was the answer, hope it helps :)
Answer:
f = 347.08 N
Explanation:
The frictional force exerted by the floor on the refrigerator is given as follows:
where,
f = frictional force = ?
μ = coefficient of static friction = 0.58
W = Weight of refrigerator = mg
m = mass of refrigerator = 61 kg
g = acceleration due to gravity = 9.81 m/s²
Therefore,
<u>f = 347.08 N</u>
Answer:
<em> The momentum of the body would be 13500 kg .m/sec</em>
Explanation:
What Momentum Entails
momentum is a property that is possed by all moving objects, it is a product of mass and velocity. A moving object has a magnitude which is the mass of the body and direction which is the velocity towards a certain direction, so it is a vector quantity
Step by Step Calculation
The momentum of a body can be gotten from the expression below;
p = m x v
where p is the momentum
m is the mass of the body = 1000 kg
v is the velocity = 13.5 m/sec
Given these parameters our momentum would be;
p = 1000 kg x 13.5 m/sec
p = 13500 kg . m/sec
Therefore the momentum of the body would be 13500 kg. m/sec
Heat always flows from a B. hotter object to a colder one.
Heat transfers always from hotter to colder.
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