A car traveled at an average speed of 35 mph for 5 hours. How far did it travel?
2 answers:
Answer:
Distance, d = 175 miles
Explanation:
It is given that,
Average speed of the car, v = 35 mph
Time taken, t = 5 h
To find,
Distance covered by the car.
Solution,
The product of velocity and time is called the distance covered by it. Its expression is given by :
d = 175 miles
So, the distance covered by the car is 175 miles. Hence, this is the required solution.
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Answer:
F = 1176 N
Explanation:
Given that,
Mass of a baseball, m = 0.140-kg
Initial speed of the baseball, u = 33.6 m/s
Final speed of the baseball, v = -33.6 m/s (in opposite direction)
The time of contact of the bat and the ball, t = 0.008 s
We need to find the average force the bat exerts on the ball. The force acting on the ball is given by :
So, the average force the bat exerts on the ball is 1176 N.
Answer:
(a). The time constant of the circuit is 2.17.
(b). The potential difference across the capacitor at t=17.0 s is 0.0396 V.
Explanation:
Given that,
Initial potential difference = 100 V
Potential difference across the capacitor = 1.00 V
(a). We need to calculate the time constant of the circuit
Using formula of potential difference
Put the value into the formula
On taking ln
(b). We need to calculate the potential difference across the capacitor at t=17.0 s
Using formula again
Hence, (a). The time constant of the circuit is 2.17.
(b). The potential difference across the capacitor at t=17.0 s is 0.0396 V.