Physics, 08.10.2021 14:10, alanflores40
An object is released from a large height above the ground and takes a very long time to reach the ground. The only forces exerted on the object are the force of Earth's gravity and the force of friction exerted by Earth’s atmosphere as the object falls. A graph of the object’s speed v as a function of time t is shown above. Which of the following claims best describes the force of friction exerted on the object?It is initially zero and increases until it is equal to the force of gravity.
Answer A: It is initially zero and increases until it is equal to the force of gravity.
Answer B: It is initially equal to the force of gravity and decreases until it is zero.
Answer C: It is always equal to the force of gravity.
Answer D:It is always greater than the force of gravity.
Answers: 1
Other questions on the subject: Physics
Physics, 21.06.2019 19:50, nicky123415
An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.
Answers: 1
Physics, 22.06.2019 05:30, ellemarshall13
Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp
Answers: 2
Physics, 22.06.2019 18:30, dakotakeating4513
Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal
Answers: 3
Physics, 22.06.2019 21:30, carleygalloway103
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?
Answers: 1
Do you know the correct answer?
An object is released from a large height above the ground and takes a very long time to reach the g...
Questions in other subjects:
Mathematics, 17.12.2021 04:30
Business, 17.12.2021 04:30
