how long will it take for water to fall to the bottom of a waterfall 45m high?
Answer: 3.0 s
how long will it take for water to fall to the bottom of a waterfall 45m...
How high must a waterfall be for the waterfall be for the water temperature to be 1.0 K warmer at the bottom than at the top?
The highest waterfall in the world is the Salto Angel Falls in
Venezuela. Its longest fall has a height of 807 meters. If water at
the top of the falls is at rest and at 15°C, what is the maximum
temperature of the water at the bottom of the falls? Assume all the
kinetic energy of the water as it reaches the bottom goes into
raising its temperature. The specific heat capacity for water is
4186 J/kg°C.
3. The highest...
(c) Consider a 135 meter high waterfall. If the decrease in potential energy of the water (i.e., mgh) is totally converted into heat, calculate the temperature difference between the top and bottom of the waterfall. Data: m-mass, g - acceleration due to gravity = 9.81 m/s. The specific heat of water = 4.184 J/(8 °C).
How long does it take an object to fall 12.5m? Ignore air resistance, and answer in seconds.
7.31
How long does it take package A to reach the bottom?
Express your answer with the appropriate units.
Enhanced EOC: Problem 7.31 Two packages at UPS start sliding down the 20 degree ramp shown in the figure. Package A has a mass of 6.50kg and a coefficient of kinetic friction of 0.220. Package B has a mass of 11.5kg and a coefficient of kinetic friction of 0.150. (Figure 1) How long does it take package A to reach the...
A landscape architect is planning an artificial waterfall in a city
park. Water flowing at 1.70
m/s will leave the end of a horizontal channel at the top of a
vertical wall
h
= 2.65
m high, and from there the water falls into a pool (see
figure).
(a) Will the space behind the waterfall be wide enough for a
pedestrian walkway?
YesNo
(b) To sell her plan to the city council, the architect wants to
build a model to...
Calculate how long it would take the Earth to fall into the Sun if its orbital motion were stopped. Then, instead of the Earth, imagine a second 1 solar mass star orbiting the Sun. Start with the equations of motion and calculate how long it would take for the two stars to crash into each other.
#1.(30pts, 15 pts each) (g) Consider a 135 meter high waterfall. If the decrease in potential energy of the water (i.e., mgh) is totally converted into heat, calculate the temperature difference between the top and bottom of the waterfall. Data: m = mass, g = acceleration due to gravity 9.81 m/s". The specific heat of water 4.184 J/(0°C). (h) If a system absorbs 30.0 J of heat from the surroundings, and if it also decreases its internal energy by 33...
leaving the water vertically at 8.0 m/s, a steel head lands on the top of a waterfall 1.8m high. how long is it in the air? (express your answer in seconds)
Water flows over a section of a waterfall at the rate of 2.5 ✕ 104 kg/s and falls 27 m. How much power is generated by the falling water? watts