Physics, 30.11.2019 01:31 EmilyQuinn3053
William tell shoots an apple from his son's head. the speed of the 105-g arrow just before it strikes the apple is 24.3 m/s, and at the time of impact it is traveling horizontally. if the arrow sticks in the apple and the arrow/apple combination strikes the ground 9.50 m behind the son's feet, how massive was the apple? assume the son is 1.85 m tall.
Answers: 3
Physics, 22.06.2019 02:30
The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information
Answers: 3
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
William tell shoots an apple from his son's head. the speed of the 105-g arrow just before it strike...
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