Uncertainty in the electrons momentum
An electron passes through a slit of width 7.89 10-8 m. What is the uncertainty in the electron's momentum component in the direction perpendicular to the slit but in the plane containing the slit?
Expected delivery within 24 Hours
A space vehicle is orbiting Earth in a circular orbit with a radius of 10,300,000 m. What is the minimum increase in speed that is needed for the vehicle to escape Earth's gravitational field? The mass of Earth is 5.97 x 1024 kg and G = 6.67 X 10
A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50.9 m length of aisle.
Block A, with a mass of 4 kg, is moving with a speed of 2.0m/s while block B, with a mass of 8 kg, is moving in the opposite direction with a speed of 3m/s. Calculate the center of mass of the two block-system.
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attatced to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle? (the answer is 1.6m/s. I wanna know the s
A string under a tension of 59 N is used to whirl a rock in a horizontal circle of radius 3.9 m at a speed of 23.9 m/s. The string is pulled in, and the speed of the rock increases. When the string is 0.482 m long and the speed of the rock is 53 m
Estimate the spacing between the centers of neighboring atoms in a piece of solid aluminum, based on a knowledge of the density (2700 kg/m3) and atomic mass (26.9815 u) of aluminum.
A 3210 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 5.13 m before contacting the beam, and it drives the beam 5.43 cm into the ground before coming to rest. Find the magnitude of the average force the beam
A 0.05-kg bullet traveling at 120 m/s tears into a slab of thick wood. The wood exerts a constant retardation (negative acceleration) of magnitude 8000 m/s2. How long will it take the bullet to come to a stop?
1925342
Questions Asked
3,689
Active Tutors
1445745
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: Which of the following is a difference between barchan and parabolic dunes?
Question: Which of the following is true about sand dunes?
What are cross beds? inclined layers in sediment or sedimentary rocks that reveal the direction of wind transport inclined layers in sedimentary rocks
Question: Which of the following accurately describes the Basin and Range region of the western United States?
Question: Why does the crust subside slightly on either side of a melting glacier?
Question: Will plucking occur if a glacier is NOT advancing? No, because glacial ice is still moving inside the glacier even if the glacier's front is not adva
Question: In the first model, what happens as the layer of coarse material develops at the surface?