Physics, 09.04.2020 17:57 isaiah1027
The specific heat of water is 1 calorie/°C-gram, and the specific heat of a metal is about 0.1 calorie/°C-gram. If the same amount of heat
energy is applied to the same mass of water and the metal, which is the correct comparison of the changes in temperature?
A. The increase in temperature will be about 10 times greater in the metal than the water.
B. The increase in temperature will be about 0.1 times as great in the metal as the water.
c. The temperature of the water will increase and the temperature of the metal will decrease.
D. The temperature increase will be the same, but will be faster in the water.
Answers: 2
Physics, 21.06.2019 22:40
The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively
Answers: 2
Physics, 22.06.2019 00:10
I'm kinda lost ! 1. when marilyn takes her pet dog for a walk, the dog walks at a veryconsistent pace of 0.55 m/s. draw a position-time graph to representmarilyn's dog walking the 19.8 m distance from the front of her house tothe nearest fire hydrant.2. both car a and car bleave school when a stopwatch reads zero. car atravels at a constant 75 km/h, and car b travels at a constant 85 km/h.a) draw a position-time graph showing the motion of both cars. howfar are the two cars from school when the stopwatch reads 2 hrs? calculate the distances and show them on your graph.b) both cars passed a gas station 120 km from the school. when dideach car pass the gas station? calculate the times and show themon your graph.3. the figure below shows the position-time graph showing a shopper'smovement up and down the aisle at a store.a) write a story describing the shopper's movements at the store.b) when does the shopper have a position of 6 m? c) how much time passes between when the shopper enters the aisleand when he gets to a position of 12 m? what is the shopper's averagevelocity between 37 s and 46 s?
Answers: 3
The specific heat of water is 1 calorie/°C-gram, and the specific heat of a metal is about 0.1 calor...
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