Answer:
2.13m/s^2
Explanation:
Use equation:
Fnet=ma
If 17.7 is the netto force (Fnet) then you just substitute the values in and solve.
Note m is mass (kg) and a is acceleration (m/s^2)
Answer:
X: Causes light rays to bend toward the principal axis
Y: Is capable of producing images that are smaller than objects
Z: Causes light rays to bend away from the principal axis
Explanation:
just took the test...
<u>Answer</u>
a) properties and hazards
<u>Explanation</u>
Having information on properties of a chemical helps you know the reactivity of that chemicals.
Most chemicals are very reactive. So you have to be away of their hazards to avoid accidents.
Answer:
352,088.37888Joules
Explanation:
Complete question;
A hiker of mass 53 kg is going to climb a mountain with elevation 2,574 ft.
A) If the hiker starts climbing at an elevation of 350 ft., what will their change in gravitational potential energy be, in joules, once they reach the top? (Assume the zero of gravitational potential is at sea level)
Chane in potential energy is expressed as;
ΔGPH = mgΔH
m is the mass of the hiker
g is the acceleration due to gravity;
ΔH is the change in height
Given
m = 53kg
g = 9.8m/s²
ΔH = 2574-350 = 2224ft
since 1ft = 0.3048m
2224ft = (2224*0.3048)m = 677.8752m
Required
Gravitational potential energy
Substitute the values into the formula;
ΔGPH = mgΔH
ΔGPH = 53(9.8)(677.8752)
ΔGPH = 352,088.37888Joules
Hence the gravitational potential energy is 352,088.37888Joules
<span>Tech A is correct. An evaporator is part of the heat exchange system in a vehicle. Sometimes vehicles will have more than one evaporator, each located in different areas of the vehicle. A condenser is part of the air conditioner system, and only one is normally required.</span>
