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Physics Questions and Answers February 21, 2020

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In a machine shop, two cams are produced, one of aluminum and one of iron. Both cams have the same mass. Which cam is larger? (a) The aluminum cam is larger. (b) The iron cam is larger. (c) Both cams have the same size.

In a shipunloading operation, a 3500lb automobile is supported by a cable. A rope is tied to the cable and pulled to center the automobile over its intended position. What is the tension in the rope Construct a free body diagram for the particle at A, and the associated polygon. 30

. Barium Titanate BaTiO3 crystalizes in such a structure that the Ba atoms sit at the corners of a cube with a Ti atom at the cubes center and the O atoms in the centers of its faces. Describe the structure with a suitable lattice and basis.

In physics we represent interactions using forces. Forces are vector quantities because they have magnitude and also direction. Add up all the shown forces on this rod. Write your answer in terms of x and y components. Note that F1 8.2 N, F2 6.8 N, F 11 N, F, 9.8 N. F, 30 F, 45 Hint Write the individual forces into components first. F, F, What

A wedge of cheese is suspended at rest by two strings which exert forces of magnitude F and F2, as seen below. There is also a downward force of gravity on the cheese of magnitude 20 N. What is the magnitude of the force F What is the magnitude of the force F2 F1 60 F2 20 N

Based on the equipartition theorem, how much energy should a gas of N atoms, each of mass possess at temperature T.

In lab you measured the force between two charged pith balls where the pith balls were of the same size and mass. Your assumption was that the charge on the balls was the same. Consider this change to that situation. You charge the balls so that they hang a distance r apart. Then you step out to get a drink of water, and when you return, you find

In the first 10 seconds after its launch, a rocket only moves vertically with an acceleration given by a,(t) (2.40 ms)t. a. Calculate the vertical height of the rocket at t 10 s. b. Calculate the speed of the rocket when it is 300 meters above the launchpad. 3D

A car is being driven along a straight, level highway at 71.582 mph. The driver taps on the brakes but notices no response. He tries to brake again and realizes the brakes are completely out. There is a field next to the highway with tall grass. The driver veers into the tall grass traveling in a straight line. The car eventually comes to a stop.

Initially (at time t = 0) a particle is moving vertically at 5.8 m/s and horizontally at 0 m/s. Its horizontal acceleration is 2.1 m/s 2 . At what time will the particle be traveling at 54 with respect to the horizontal? The acceleration due to gravity is 9.8 m /s 2 .

Calculate the glancing angle for incidence of Xray of wavelength 0.58 on the plane (132) of NaCl which result in 2nd order diffraction maxima taking the lattice constant as 3.81 .

Columbus, Ohio, is in the Eastern Time Zone, for which the civil time is equal to the mean solar time along the 75 W meridian of longitude. (a) Ignoring daylight saving time for the moment, are there any days of the year when civil noon (as shown by a clock) is the same as apparent local noon (as shown by the Sun) in the city of Columbus If so,

Consider a mole of gas in a chamber that is not being pumped. What is the probability of a selfpumping action such that all of the gas molecules will congregate in onehalf of the chamber and leave a perfect vacuum in the other half
Consider a mole of gas in a chamber that is not being pumped. What is the probability of a self-pumping action such that

Magnetic Force Vector Drawing The situations below, a charged particle enters a region of uniform magnetic field. Draw a vector to represent the direction of the magnetic force on the particle. Part A Draw the vector starting at the location of the charge. The location and orientation of the vector will be graded.The length of the vector will not

Draw the approximate workspace for the following robot. Assume the dimensions of the base and other parts of the structure of the robot are as shown.

8. How fast does water flow from a hole at the bottom of a very wide 4.6m deep storage tank filled with water Ignore viscosity. (3marks) ,9. A 6.0cm diameter horizontal pipe gradually narrows to 4.0cm. When water flows through this pipe at a certain rate, that gauge pressure in this two section is 32.0kPa and 24.0kPa respectively. What is the