Physics, 14.07.2020 19:01 minnahelhoor
A ball is projected upward at time t = 0.0 s, from a point on a roof 70 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is What is the velocity of the ball when it is above the ground? −89 m/s − 72 m/s − 36 m/s − 107 m/s − 54 m/s
Answers: 1
Physics, 22.06.2019 07:30
Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
Answers: 1
Physics, 22.06.2019 18:10
Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
Answers: 1
Physics, 23.06.2019 00:00
Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?
Answers: 1
A ball is projected upward at time t = 0.0 s, from a point on a roof 70 m above the ground. The ball...
Mathematics, 20.07.2019 02:00
Biology, 20.07.2019 02:00
Social Studies, 20.07.2019 02:00
Social Studies, 20.07.2019 02:00
Mathematics, 20.07.2019 02:00
Mathematics, 20.07.2019 02:00
Physics, 20.07.2019 02:00
History, 20.07.2019 02:00