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!
You decided to take a break from college and go hiking in the wilderness of Canada. With yearly snowfalls in excess of 120 cm near Edmonton, Alberta, you find it necessary to purchase a pair of snow shoes. After a trip to the local sporting goods store, you realize that any commercial pair is out of your price range. Making them would be significantly cheaper. If you wanted to only compress snow 1 cm while standing, what would the area of each snow shoe have to be? (Approximate the snow as a spring system with a spring constant per unit area of 1.96×105 N/m3 and estimate your mass.)
Once your snow shoes are made, you finally travel to the trails. You walk up and orient yourself perpen- dicular to a stream, observing that it is flowing at 1 m/s. Something catches your eye and you look up at a 45? angle from the horizontal. You spot a weasel climbing a tree branch over a stream. In this -20?C winter weather, trees are not as flexible and snap when put under too much stress. This particular weasel is a little too heavy for the tree limb, causing it to brake, sending the poor woodland creature falling into the water directly in front of you. You hear the crack of the tree 22 ms after you see it start to fall. How fast is the weasel moving when it hits the water?
The weasel starts drifting towards a waterfall. Luckily a beaver dam (2 m wide) is 10 m downstream from where you are standing (P). You can only run at a top speed of 2 m/s in the homemade snow shoes. If the cross-sectional area of the stream decreases by factor of 10× while passing through the dam, can you catch and save the weasel before it moves past the dam (X), down the waterfall?
An airplane is flying with a velocity of 93.0 m/s at an angle of 22.0^circ above the horizontal. When the plane is a distance 119 m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A bullet with mass m and speed v is fired at a ballistic pendulum bob of mass M. The bob is attached to a thin, light rod of length L, hangs vertically initially, and is attached to a pivot at its top end.
A sailboat is running along a straight course with the wind providing a constant force of 55 lb. The only other force acting on the boat is resistance as the boat moves through the water. The resisting force is numerically equal to five times the boa..
A street lamp weighs 152N. It is supported equally by two wires that form the angle of 120° with each other. What is the tension of each of these wires.
A small steel ball with a mass of 80 g is releasesd from a resting height of 1.25 m above a ridgid metal plate. What is the velocity of ball before impact.
What is the new momentum of the puck. What is the length of pipe.
A microscope has a 12.0 x eyepiece and a 59.0 objective lens 20.0 cm apart. Calculate (a) the total magnification, (b) the focal length of each lens, and (c) where the object must be for a normal relaxed eye to see it in focus?
A 1.0 kg block is attached to a spring with spring constant 18.0 N/m. While the block is sitting at rest, a student hits it with the hammer and almost instantly gives it a speed of 41.0 cm/s. What is the amplitude of the subsequent oscillations? The ..
Find out the gravitational potential energy
The concrete wall of a building is 0.10m thick. The temperature inside the building is 20.0 °C, while the temperature outside is 0°C. Heat is conducted through the wall.
An object is lifted vertically 2m and held there. If the object weighs 30N, how much work was done in lifting it. Describe it briefly.
At what point the electric potential zero. A sphere of mass 1.9 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 17° with the vertical. Find (a) the magnitude of that push a..
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