Answers: 2
Physics, 22.06.2019 08:00
What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
Answers: 1
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 22.06.2019 19:00
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
Answers: 2
What did thomson’s model of the atom include that dalton’s model did not have? a)a nucleus b)energ...
Social Studies, 15.06.2021 16:10
Spanish, 15.06.2021 16:10
English, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Social Studies, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
English, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10
Mathematics, 15.06.2021 16:10