Show that a system with excitation x(t) and response y(t) described by
y(t) = x (t/2)
is linear, time variant and noncausal.
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Match the following
a. lack of this can stop bud growth and result in death of root tips b. responsible for vegetative growth of plant and dark green color c. entire plant may be yellow if deficient d. cupped leaves and reduced seed production if deficient e. important in seedling and young plant growth f. plant lacks if it wilts easily and has dead spots on leaves 1. nitrogen 2. phosphorus 3. potassium 4. calcium 5. magnesium 6. sulfur
The preheating temperature range can be as high as _____ when welding cast iron.? ?
A. 1,000°F? B. 1,200°F? C. 1,500°F? D. 2,000°F?
Technician A says crankshafts in high performance engines are generally cast iron. Technician B says crankshafts in high performance engines may be forged iron. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
The condition where a heart stops effectively pumping blood due to an electrical shock is known as _____________________.
A. ventricular fibrillation B. cardiopulmonary resuscitation C. cardiomyopathy D. endocarditis