Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Solve the following questions given below:
Question I: Calculate the terminal velocity for a pollen grain falling through the air using the drag force equation. Assume the pollen grain has a diameter of 2 µm and a density of 0.4 g/cm3.
________m/s
Question II: If this grain is released from the top of a tree (height 11 m), estimate the time it will take to fall to the ground. Hint: The pollen grain will reach its terminal velocity very quickly and will have this velocity for essentially the entire motion. Your answer will explain why pollen stays in the air for a very long time. (Assume the density of air to be 1.3 kg/m3).
_______s
Please show me step by step or type in formulas used. I am so lost!!
A factory worker pushes a 29.0kg crate a distance of 4.3m along a level floor at constant velocity by pushing downward at an angle of 32? below the horizontal. What is the total work done on the crate
A projectile is shot directly away from Earth's surface. Ignore the rotation of the Earth. Find what least initial mechanical energy required at launch if the projectile is to escape Earth
If your body is emitting infrared radiation of wavekenght 9.4X 10-6 m. What is the energy of the released photons
Assume that sound is emitted uniformly in all directions by a public address system. Find the intensity at a spot that is 74 meter away
german physicist werner heisenberg related the uncertainity of an objects position triangle x to the uncertainity in
A solenoid in MRI is 2.40 m long, 94 cm in diameter, and 1200 turns of superconducting wire. Find a) inductance, b) induced emf in the solenoid while the current in the wire is changing from 0 to 2.5 kA in 30 s.
An observation satellite orbits the planet at a height of 1000. What is the projectile's speed as it passes the satellite
During each cycle a reversible engine absorbs 2550 Joule of heat from a high-temperature reservoir and performs 2100 Joule of work. Find how much heat is exhausted to the low-temperature reservoir during each cycle
You require a sheet of copper for a home project, and since it is sold by the square foot, you buy 2.0 ft2 (according to the label). But, when you get home and check the actual dimensions for yourself, you find that the area is really 1.997 ft2. If y..
A shipping container is hauled up a roller ramp that iseffectively frictionless at a constant speed of 2.10 m/s by a2250 N force that is parallel to the ramp. what is the container's mass
a hollow aluminum cylinder 19.0 cm deep has an internal capacity of 2.000 l at 23.0degc. it is completely filled with
A 60-kg skier with an initial speed of 16 m/s coasts up a 2.50-m high rise, Find her final speed at the top in m/s, given that the coefficient of friction between her skis and the snow is 0.08
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd