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A jogger runs with a speed of 3.25 m /s I. A direction. Of 30.0 degrees above the x axis a. Find the x and y components. Of the jiggered velocity
A 5.45-kg ball hangs from the top of a vertical pole by a 2.19-m-long string. The ball is struck, causing it to revolve around the pole at a speed of 4.37 m/s in a horizontal circle with the string
Calculate the limiting visual brightness in magnitudes for naked eye viewing through a 10-m telescope. Assume the eye has a pupil diameter of 0.2 in.
The solar constant is the flux of the Sun's radiation at the top of the Earth's atmosphere. Calculate it's value assuming that the sun is a blackbody with an effective temperature of 5800 K, a radiu
A wire 10 m long with a diameter of 1.0 mm has a resistance of 5.0 ?. The resistance of a second wire made of the same material, but 3.0 m long with a diameter of 4.0 mm, is approximately?
The patient is wheeled through the emergency room entrance 19 m east down a hall to an elevator, -9 m down an elevator, and 32 m south to an operation room. How far is the emergency room entrance fr
The battery is now disconnected from the capacitor. What is V, the voltage across the capacitor?
In ordinary laboratory circuits, charges in the \mu {\rm C} and {\rm nC} range are common. Part A) How many excess electrons must you add to an object to give it a charge of -3.00\mu {\rm C} ? Part
What is the minimum stopping distance for the same car traveling at a speed of 36 m/s?
A hollow copper wire with an inner diameter of 1.1 mm and an outer diameter of 1.8 mm carries a current of 15 A. What is the current density in the wire?
How far away from you is this car when its taillights appear to merge into a single spot of light because of the effects of diffraction?
Assuming that the visible spectrum extends from 380 to 750 nm, what is the longest visible wavelength (in vacuum) for which the film will appear bright due to constructive interference?
In a Young's double-slit experiment the separation distance y between the second-order bright fringe and the central bright fringe on a flat screen is 0.0169 m, when the light has a wavelength of 42
Oppositely charged parallel plates are separated by 5.31 mm. A potential difference of 600 V exists between the plates.
Calculate the horizontal distance from the base of the building to the point where the rock strikes the ground.
What is the maximum speed you could have reached and still not hit the deer?
A man stands on the roof of a 13.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 34.0 above the horizontal. You can ignore air resistance. Calculate the magnitude
The Seattle airport facility dispatches a rescue crew. A. In what direction should the crew fly to go directly to the field? Use components to solve this problem. B. How far should the crew fly to g
What are possible sources of error when doing and experiment to calculate shear force? Basically in each trial a point load was attached to a beam and in each trial the point load was increased.
A piece of Nichrome wire has a radius of 7.2 x 10-4 m. It is used in a laboratory to make a heater that dissipates 4.60×102 W of power when connected to a voltage source of 140 V. Ignoring the
There are approximately 109 million TVs in the United States. Each uses, on average, 74 W of power and is turned on for 6.6 hours a day. If electrical energy costs 0.085 dollars per kWh, how much mo
The dielectric constant of this substance is 5.93. Find the capacitor's potential difference and charge after the insertion.
Determine the ratio of the energy used by the blow-dryer in 12 minutes to the energy used by the vacuum cleaner in 54 minutes.
An object's temperature increases, and in so doing its radiation power increases by a factor of 2.00. What is the ratio of the new temperature to the original temperature (with both temperatures in