subject
Physics, 25.11.2019 22:31 tatenasira

Monica is hurrying off to her physics class, jogging down the sidewalk at a speed of 3.80m/s . her friend manny suddenly realizes that she left in such a hurry that she forgot her lunch of bagels, so he runs to the window of their apartment, which is a height 50.8m above the street level and directly above the sidewalk, to throw them to her. manny throws them horizontally at a time 4.50s after monica has passed below the window, and she catches them on the run. you can ignore air resistance.
part a)
with what initial speed must manny throw the bagels so monica can catch them just before they hit the ground?
hint: the bagels move along a projectile trajectory. find monica's location when the bagels reach the ground and demand that the bagels have this same range. when the bagels reach the ground, y_final=0m, and they start at y_initial at hieght of window. since v_initial has only an x-component, it is straightforward to calculate the time that they will be in the air. you have to add that time onto the jog time.
part b)
where is henrietta when she catches the bagels?

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 15:10
What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?
Answers: 3
question
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
question
Physics, 22.06.2019 15:10
An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?
Answers: 2
question
Physics, 22.06.2019 16:30
The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db
Answers: 3
You know the right answer?
Monica is hurrying off to her physics class, jogging down the sidewalk at a speed of 3.80m/s . her f...
Questions
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
History, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Spanish, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Spanish, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
English, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
question
Mathematics, 10.09.2020 14:01
Questions on the website: 13722367