consider the motion when Jim travels by bicycle
D = total distance to be traveled for the trip = 153 mile
v = speed of riding = 42 mph
t = time taken to complete the trip by bicycle = ?
using the equation
t = D/ v
inserting the values
t = 153/42
t = 3.64 h
while walking and riding :
T = total time taken to complete the trip by walking and riding = 5 hours
t ' = time of walking = T - t = 5 - 3.64 = 1.36 hours
v' = speed of walking = 4 mph
d' = distance traveled by walking = ?
distance traveled by walking is given as
d' = v' t'
d' = 4 x 1.36
d' = 5.44 miles
d = distance traveled by bicycle = D - d' = 153 - 5.44 = 147.56 miles
v = speed of riding = 42 mph
t = time spent on the bicycle = ?
time spent on the bicycle is given as
t = d/v
t = 147.56/42
t = 3.51 hours
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs.
Read more on Brainly.com -
brainly.com/question/1581851#readmore
Answer:
Closed.
Explanation:
In order for a current to flow, the circuit must be closed; in other words, there must be an uninterrupted path from the power source, through the circuit, then back to the power source. Voltage is sometimes called electric potential and is measured in volts.
Explanation:
8. correct. You can get there from Maxwell's equations, a derivation that is beyond the scope of this answer.
___
9. Color is a property of visible light, the portion of the electromagnetic spectrum that has particular effects on the eyes and brain. Other portions of the spectrum, those observed by radio and X-ray telescopes, must be rendered in false color to make an image. The appropriate choice is the first one:
• radio telescope and X-ray telescope
A. All living things and objects