Q22c. At position B the tennis ball has 0.38J of gravitational potential energy.
Write down the equation that links gravitational field strength, gravitational
potential energy, height and mass.*
Figure 19 shows a tennis ball thrown vertically into the air
Figure 19
A
Al position C, the ball has just left the tennis player's hand at a speed of 50 m/s
The tennis ball has a mass of 0.058 kg
Answers: 2
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
Physics, 22.06.2019 14:40
A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.
Answers: 1
Physics, 22.06.2019 15:20
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
Physics, 22.06.2019 16:00
The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?
Answers: 2
Q22c. At position B the tennis ball has 0.38J of gravitational potential energy.
Write down the equ...
Mathematics, 16.10.2020 21:01
Chemistry, 16.10.2020 21:01
History, 16.10.2020 21:01
Biology, 16.10.2020 21:01
Mathematics, 16.10.2020 21:01
Mathematics, 16.10.2020 21:01
Mathematics, 16.10.2020 21:01
English, 16.10.2020 21:01
History, 16.10.2020 21:01
English, 16.10.2020 21:01
Mathematics, 16.10.2020 21:01