Answer:
B. Two ends of a bulb are attached to the positive and negative poles of the battery
Explanation:
We have to speed up the watch so we need to decrease time period of pendulum. So we hv to reduce the length.
Answer:
c. elasti potential energy
Explanation:
i have learned it
Answer:
The acceleration is
Explanation:
From the question we are told that
The mass of the engine is
The mass of each Boxcar is
The tension between the locomotive and boxcar A is
Generally the tension between the locomotive and boxcar A is equivalent to the net force propelling the box cars so the tension is mathematically represented as
Here M is the mass of the three box cars
=>
=>
Answer: 2.6 daL
Explanation: I just took the test
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