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!
1. Marty McFly needs to get "Back to the Future" with hisDeLorean. To do that he needs to reach 39.11 m/s (88 miles perhour) at the same time that lightning strikes the clock tower. He has a maximum acceleration of 4.444 m/s2.
a. What length of road does he need to reach 39.11 m/s?
b. How long before the lightning strikes the clock tower shouldMarty start to accelerate?
c. Marty starts to break immediately after reaching 39.11 m/s.He has a maximum braking acceleration of 10 m/s2, and75 m of road before he crashes into a store front. Can he stop in time?
2. Legolas is standing on the walls of Helm's Deep, which have a height of 6.1 m. There is an orc standing 100.0 m away on the ground. An arrow fired from Legolas' bow has an initial speed of90.0 m/s in the xdirection.
a. How long will it take Legolas' arrow to reach the orc?
b. What is the maximum height the arrow needs to reach?
c. At what angle must he aim to hit the orc?
A tube well pumps out 2400kg of water per minute. If water is coming out with a velocity of 3m/s^2,what is the power of the pump? How much waork is done if the pump runs for 10 hours.
A certain medical machine emits x-rays with a minimum wavelength of 0.025 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 80 percent of its normal value. Now what is the minimum x-ray wavel..
A 23 bullet traveling 240 penetrates a 4 block of wood and emerges going 170. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
The total accleration of the sphere and the thread tension as a function of θ, the angle of defliction of the thred from the virtical.
An unfortunate subject receives doses of the following types of radiation: ? rays (20 mrad, RBE=1), electrons (45 mrad, RBE=1), What is the total biologically equivalent dose received
Three uniform sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0 to = 2.0 , stick 2 lies along the axis from = 0 to = 2.0 , stick 3 lies along the axis from = 2.0 to =4.0 .
A 100-turn, 5.0-cm-diameter coil is at rest in a horizontal plane. What is the induced emf in the coil
A 65.0 kg skier initially at rest begins to slide down at a 10.0 degree slope. how fast will the skier be going at the end of the hill
An electron gun in an old television picture tube is a device that uses an electric field to accelerate electrons. What magnitude of electric field is needed to accelerate an electron from rest to a speed of 4.0x10^7 m/s in a distance of .01m.
An aluminum wire carrying a current of 4.0 A has a cross-sectional area of 9.0 10-6 m2. Find the drift speed of the electrons in the wire
A bobsled slides down an ice track starting (at zero initial speed) from the top of a 53.9 meter high hill. The acceleration of gravity is 9.8 m/s^2. calculate the bobsled speed at the bottom of the hill
Two thin lenses with a focal length of magnitude 10 cm, the first diverging and the second converging, are located 7.88cm apart. How far from this first lens is the final image formed
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