Morremouen 2
Objects...
General Equation
Conserves KE?
Type of
Collision
Elastic
Inelastic
Separation
yes
no
bounce
stick together
separate
Conserves
Momertura?
yes
yes
yes
mV+ m - m V+ m2
mvi+ m V2 = (m; + my
(m + m - m vism
1
A6 kg object speeds up from 5 m/s to 20 m/s. Find op
2.
A 10 kg object slows down from 25 m/s to 5 m/s. Find op
3. What is the impulse for 01 above:
What is the impulse for 02 above.
Why or why not?
4.
Can an object ever have a negative kinetic energy?
Why or why not?
5.
Can an object ever have a negative momentum?
6.
If an object's kinetic energy is zero, what is its momentum?
7.
A 2 kg object going 30 m/s feels a -4 N force for 8 seconds, find the object's final velocity. Conservation of Momentum
Equation: Solve:
SIT-m
Menal

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: