Answer:
A boat can travel 2.30 m/s in still water. (a) If the boat points its prow directly across a stream whose current is. ... (a) What is the velocity (magnitude and direction) of the boat relative to the shore? ... The boat's velocity with respect to the shore, , is the sum of its velocity with respect to the water
Explanation:
Answer:
1.#(#('#;#+#('#;#+jwhsjjshajahkqhwmskek
Explanation:
jsjsnanakamakwjKbakqwigjgodrgoshoihrdohrf
tjfjrhgcorfhptgkc
jv
tgj
crlfkhc
rjv
tkgjv
kyjv
tgjvhrlkrfjhirghogrtiguotightjptrjpghpf
rofrirhfohrihithfitgprirl
ceohr
fbojofjigoitigotjog
irojfofjkrhrjoejoqjodirnkfnkrjoritpruixhor
- firhofeiidiehdijeihr
- jdhxjdhjchfihvidjfdoigorjgiifugiruogu
- ifgijrojiru
bifjibjtgitkriwgi eror iurh oryi ehiwyrfoerhfoefoeuis in het begin van een tui ueen uitgebreide beschrijving ygt grup u een uitgebreide keuze u guugu
sjksjsosjsnshf ruor uw eigen website aanmaken r y fav u can u to uf the owner u will tu tutururu ba sa inyo ay walang naging y rin h results ry from y yifuirfjofjkrjirhieifr Fu t I
Answer:
1703.24J
Explanation:
Given parameters:
Mass of brick = 7.9kg
Height of building = 22m
Unknown:
Potential energy of the brick = ?
Solution:
The potential energy of a body is the energy at rest of the body. Mathematically;
P.E = mgh
m is the mass of the brick
g is the acceleration due to gravity
h is the height of the building
Insert the given parameters and solve;
P.E = 7.9 x 9.8 x 22 = 1703.24J
Answer:

Explanation:
Assuming no energy lost, according to the law of conservation of energy, the kinetic energy of the automobile becomes potential energy after the crash:

Here m is the automobile's mass, v is the speed of the car before impact, k is the "bumper" constant and x is the compression of the bumper due to the collision. Solving for v:
