Please look at the attachments and help me with these questions
Answer:
there are no attachments
Explanation:
Which physical quantity measures the rate at which an object’s velocity changes?
A.
force
B.
speed
C.
acceleration
D.
torque
Answer:
I think the answer is b speed
Explanation:
table saws you can use with __ or __ but not both at the same time
Answer:
wood or metal
Explanation:
sorry if incorrect
Which of the following activities may involve the use of plant architecture?
A) crop rotation
B) companion planting
C) algal billion
D) raised gardening
Answer:
companion planting
Explanation:
i failed and saw all the correct answers
a strut of length l has its ends built into a material which exerts a constraining couple equal to k times the angular rotation in radians. show that the buckling load p is given by the equation
[tex] \tan( \alpha )l \div 2 = p \div \alpha k \: \: and \: \: \alpha { \}^{2} [/tex]
[tex] \alpha [/tex]
Answer:
fxruwrisris84drid85d59s59e95etod
Explanation:
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True or false Self Driving Cars are examples of emerging technology
An automobile having a mass of 1100 kg initially moves along a level highway at 120 km/h relative to the highway. It then climbs a hill whose crest is 80 m above the level highway and parks at a rest area located there. Use a reference with kinetic and potential energy each equal to zero for the stationary highway before the hill. Let g = 9.81 m/s^2.
For the automobile, determine its change in kinetic energy and its change in potential energy, both in kJ. For the automobile, determine its change in kinetic energy, in kJ.
a. -8594
b. -663.1
c. -6.63x10^5
d. 663.1
Answer:
[tex]-6111.11\ \text{kJ}[/tex]
[tex]863.28\ \text{kJ}[/tex]
Explanation:
m = Mass of automobile = 1100 kg
v = Velocity of car = 120 km/h = [tex]\dfrac{120}{3.6}\ \text{m/s}[/tex]
h = Height of hill = 80 m
g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]
Change in kinetic energy
[tex]KE=\dfrac{1}{2}m(u^2-v^2)\\\Rightarrow KE=\dfrac{1}{2}\times 1100\times (0-(\dfrac{120}{3.6})^2)\\\Rightarrow KE=-611111.11\ \text{J}[/tex]
Change in kinetic energy is [tex]-6111.11\ \text{kJ}[/tex]
Change in potential energy is given by
[tex]PE=mgh\\\Rightarrow PE=1100\times 9.81\times 80\\\Rightarrow PE=863280\ \text{J}[/tex]
The change in potential energy is [tex]863.28\ \text{kJ}[/tex].
A communications system transmits a message. The probability that the message will be received is p. To be confident that a message is received at least once, the system transmits it n times. If a message is received, the receiver turns off and does not turn back on.
a. Assuming all transmissions are independent, what is the PMF of K, the number of times the pager receives the same message?
b. Assume p=0.8. What is the minimum value of n that produces a probability of 0.95 of receiving the message at least once?
Answer:
Follows are the solution to the given points:
Explanation:
In point a:
In the PMF of K, that pager receives its same message number of times, that is [tex]=\tiny \binom{n}{k}p^{k} (1-p)^{n-k}[/tex]
In point b:
The possibility of getting number of cultural at least once in x:
[tex]\to 1-P(\text{not receiving it at all})\\\\\to 1-(0.2)x\\\\\to 1-(0.2)x>0.95\\\\\to (0.2)x<0.05 \\\\[/tex]
appling the [tex]\log[/tex]:
[tex]\to x>0.25[/tex]
The value x is equal to 3.
What kind of plan or development of road can be done to avoid traffic?
Answer: Breakdown Lanes
Reason: With breakdown lanes when a car needs to stop it can go to the backdown lane and fix its issue.
I need help with this ASAP please. This is basic carpentry, I just missed the first half of the year so I am a little behind. Can somebody answer the two questions?
Answer:
the half answer is pretty easy just look at it really really good hope this helps..
Explanation: