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  1. E

    A question about velocity and elevation?

    Suppose there's a cannon placed at the base of Mount Mountain. We tilt the cannon at a 45-degree angle, in the direction of the top of the mountain, and fire the 6-kg cannonball. The cannonball exits the cannon at a velocity of 300 metres per second. Mount Mountain rises at a slope of 30...
  2. E

    Can I check Telstra Messagebank without credit?

    I have three new messagebank (101) messages, and they're important, but I have no credit. Is there any other way I can access the messages?
  3. E

    Does cooked rice need to be refrigerated?

    I'm planning on cooking some rice tonight and taking it to work with me tomorrow (I won't be reheating it). I can refrigerate it overnight but we don't have a fridge at work so it will be sitting (in a sealed plastic container) at room temperature for about 5 hours. Is that okay, or does it have...
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