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Q1. A cube of ice is taken from the freezer at -9.4°C and placed in a 94 g aluminium calorimeter filled with 315 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of ice cube?
Q2. A plane leaves the airport in Galisto and flies 240 km 68 degrees east of north and then changes direction to fly 154 km at 48 degrees south of east, after which it makes an immediate emergency landing in the pasture. When airport sends out a rescue crew, how far will the crew have to fly to reach aircraft if they fly in a straight line from Galisto?
When two tuning forks of 128 Hz and 149 Hz, respectively, are sounded simultaneously, how various beats per second are heard.
Suppose a chimpanzee swings through the jungle on vines. If it swings from a tree on a 13 m long vine that starts at an angle of 45 degrees, what is the chimp's velocity when it reaches the ground.
What is the acceleration of the truck. If it starts 4.50 m from the lower edge of the roof, how fast would the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 18.0 N.
What is Johns resultant displacement
A string of 22 identical Christmas tree lights are connected in series to a 125 V source. The string dissipates 52 W. What is the comparable resistance of the light string.
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
What is the speed of the center of mass
What time would an observer on one of the two planets measure for the similar trip. Find out the coordinates of the center of gravity for this system.
Compute direction of Sparkys net displacement
How to find out the elapsed time
What is an average acceleration of the dragonfly
F ind the speed of the golf ball just after impact
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