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!
A hurricane wind blows across a 7.50m × 16.4m flat roof at a speed of 180km/hr.
1. What is the pressure difference
2. How much force is exerted on the roof?
3. If the roof cannot withstand this much force, will it "blow in" or "blow out"?
An object weighs 294N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 240N. When it is immersed in oil, it weighs 258N.
What is tension in each rope
A stone is dropped from the top of a cliff at t=0. The splash it makes when striking the water below is heard 6 seconds after it is dropped (i.e. at t=6 sec). How high is the cliff? (i.e. find 'h') suppose that the speed of sound in air is 340m/s ..
The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 110 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
A 105-kg water skier floating in a lake is pulled from rest to a speed of 14 m/s in a distance of 25m. What is the net force exerted on the skier, assuming his acceleration is steady.
The mass of a robot is 5200 kg. This robot weighs 3750 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 107 m. What is the difference among MA - MB in the masses of these planets?
A river ?ows at a speed vr = 5.85 km/hr with respect to the shoreline. A boat needs to go perpendicular to the shoreline to reach a pier on the river's other side, determine the width of the river
cientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 5.0kg projectile from rest to a speed of 4.0 x 103 m/s. The net force accelerating the projectile..
A horizontal force of 822 N is needed to drag a crate across a horizontal floor with the constant speed. You drag the crate using a rope held at an angle of 34° (from the horizontal).
A wave source generates circular waves that spread out from it on the surface of a pond. The wavelength of these waves is 6.00 cm. (a) At some instant a crest is passing point A.
A dog running in an open field has components of velocity v_x = 3.2 m/s and v_y = -2.1 m/s at time t_1 = 11.6 s. For a time interval from t_1 = 11.6 s to t_2 = 19.7 s, the average acceleration of the dog has magnitude 0.30 m/s^2 and direction 35.0..
A 295 Kg piano slides 4.1 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.
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