What is the difference between a safety interlock and a presence sensor.
What will be an ideal response?
Saftey interlock has to be made for the system to run in automatic and could be
reset with a person in the danger zone while a presence sensor detects anytime a
person is in the danger zone and prevents automatic operation.
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A computer sends a packet of information along a channel and waits for a return signal acknowledging that the packet has been received. If no acknowledgment is received within a certain time, the packet is re-sent. Let X represent the number of times the packet is sent. Assume that the probability mass function of X is given by
where c is a constant.
a. Find the value of the constant c so that p(x) is a probability mass function.
b. Find P(X=2).
c. Find the mean number of times the packet is sent.
d. Find the variance of the number of times the packet is sent.
e. Find the standard deviation of the number of times the packet is sent.
One of the most valuable products from peanuts is peanut oil
Indicate whether the statement is true or false.
Milk production stays the same as the offspring grow
Indicate whether the statement is true or false
2H3PO4 --ยป H2O + H4P2O7. Is this chemical equation balanced?
a. balanced b. not balanced