A person takes a trip, driving with a constant speed of 98.5 km/h, except for a 30.0-min rest stop. The person's average speed is 67.4 km/h. a) How much time is spent on the trip? hr(s)

b)How far does the person travel? km

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?