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!
Basilisk lizards can run across the top of a water surface (see the figure). With each step, a lizard first slaps its foot against the water and then pushes it down into the water rapidly enough to form an air cavity around the top of the foot. To avoid having to pull the foot back up against water drag in order to complete the step, the lizard withdraws the foot before the water can flow into the air cavity. If the lizard is not to sink, the average upward impulse on the lizard during this full action of slap, downward push, and withdrawal must match the downward impulse due to the gravitational force. Suppose the mass of a basilisk lizard is 76.4 g, the mass of each foot is 3.48 g, the speed of a foot as it slaps the water is 1.19 m/s, and the time for a single step is 0.613 s.
(a) What is the magnitude of the impulse on the lizard during the slap? (Assume this impulse is directly upward.)
(b) During the 0.613 s duration of a step, what is the downward impulse on the lizard due to the gravitational force? (Clearly the push, not the slap, provides the primary support for the lizard.)
Determine the work done by a machine that lifts a 500 Newton crate through a height of 20 meter
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. The speeds of the electrons are quite large.
A pi meson of mass mπ move with speed uin the positive y direction in frame S with parametersβu = u/c and γu = (1 - βu2)-1/2. Compute the combined energy of the two photons in S'
a moon probe falls to the moons surface from an orbital height of 16 km. what is the final velocity ms as it hits the
Two airplanes leave an airport at the same time. The velocity of the first airplane is 720 m/h at a heading of 12.6 degrees. How far apart are they after 1.8 h
A 155 g copper bowl contains205 g of water, both at 20.0°C. Avery hot 300 g copper cylinder is dropped into the water, causingthe water to boil, with 5.40 g beingconverted to steam.
A 15g rifle bullet traveling 220 m/s buries itself in a 3.5 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
An object of mass 2.1 kg is moving in the negative x direction at a velocity of 2.6 m/s. What is the final velocity after the object has experienced the impulse
Two protons in an atomic nucleus are normally separated by a distance of 2.0 X 10-15 m. The electric repulsion force among the protons is huge, but the attractive nuclear force is even stronger and keeps the nucleus from bursting apart. What is the m..
Two 45.0 x 10-9 C point charges are located on the x axis. One is at x = 0.25 m, and the other at x = - 0.25 m. A third identical charge is placed on the y axis at y = 0.25 m. discover the magnitude of the force acting on this third charge? Answer in..
Consider a system of three noninteracting identical bosons that move in a common external one-dimensional harmonic potential. Find the energy levels and wave functions of the ground state
What is magnitude of the angular momentum
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