Answer:
a. Positive and decreasing
b. 0
c. -9.81 m/s2
d. -9.81 m/s2
e. -9.81 m/s2
Explanation:
a. Since there's a constant gravitational acceleration acting downward, an upward velocity would decrease over time, until it reaches 0 at it's maximum altitude.
b. It's 0 at maximum altitude as it's no longer progressing upward. Otherwise it wouldn't be a maximum altitude.
c. d. and e. Doesn't matter where the ball is, it'd be always subjected to a constant gravitational acceleration, which is 9.81 m/s2/
Translation
A tractor pulling a cart loaded with sugar cane travels down the straight path of a farm at a speed of 20 km / h. If at 3:00 p.m.you pass the Finca Las Margaritas, what time will you arrive at the Las Ilusiones farm, located on the same road, if the distance between the two farms is 60 km
Answer:
6.00 pm
Explanation:
Speed is given by dividing distance by time and expressed as s=d/t. Making time the subject of the formula then t=d/s where s is the speed, d is distance covered and t is the time taken. Substituting 20 km/h for s and 60 km for d then t=60/20=3 hours
Adding 3 hours to 3 pm we get 6pm
Therefore, the time to reach the destination if the speed is constantly maintained is 6.00 pm
Wow ! This question reads like it might have come from one of
Faraday or Maxwell's original laboratory notebooks.
Choice-A is the correct one, when you consider what "conductance"
means. Conductance is just 1/resistance .
So when you see
"A) Current is proportionate to the conductance of the circuit and
precisely proportional to the voltage applied across the circuit."
what it's saying is
"Current is inversely proportional to the resistance of the circuit, and
directly proportional to the voltage applied across the circuit."
If you write the equation for all those words, it looks like
I = V / R
and that's correct.
