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Neglect air friction. A rifle bullet is shot at an angle of 60° from the ground at a speed of 2700 ft/s. Note: Be sure to use X & Y components.
A) How high does the bullet go?
B) How far does the bullet go down range?
C) How long does it takes to hit the ground?
What is a suitable solvent system to perform a thin layer chromatography test for 7-dehydrocholesterol in absolute ethanol?
Cut out a self-identity image ad (as defined in Beauchamp & Bowie, pp. 417-426) from a full-color magazine. Prepare a 3-page written analysis of the ad, addressing the following issues. Submit the ad, in addition to your 3-page analysis, for gradi..
The figure below shows two point charges q1 = +5.6x10-8 C and q2 = -6.3x10-8 C.
What is meant by "visibility into the workflow" and why is it important to FreshDirect's success? What are exception screens and how are they used?
A $1,000 par value bond with a 5% coupon that pays interest semiannually and matures in 2 1/2 years and has a current price of $977. What is the annualized yield to maturity and Disadvantages of investing in the futures market include all of the EX..
A block is propelled by a conveyor belt and released at point O with unknown velocity v0. The block is a projectile from O to A. At A the block slides onto a ramp AB and slides down until it comes to a stop. Determine the following:
A fisherman sees rays of light apparently diverging from a point P' on a fish (see figure below). The fish appears to be at y = 1.1 m below the surface. What is its actual depth? (Take θ = 41.2°.)
What are some examples of 7a elements? How many valence electrons do these elements have? Are these elements considered reactive? What are some practical uses of some group 7a elements?
What other elements have electron configurations similar to hydrogen?
The most common experimental technique to perform elemental analysis is combustion analysis, where a sample is burned in a large excess of oxygen and the combustion products are trapped in a variety of ways. A 99.99% pure,0.4949g sample containing on..
An ac circuit has a 20 µF capacitor, an 80 mH inductor, and a 60 Ω resistor in series. If the voltage source has an angular frequency of 1000 rad/s, what is the phase constant for the circuit?
as per the sign convention that we follow in this class if an electric motor is considered as a control volume then the
An object that has a mass of 43kg that is dropped from rest has a terminal velocity of 93 m/s. Use g = 9.8m/s2. Determine the acceleration of this mass
question about simple harmonic motion shm is wronga.the restoring force is linear the net force is toward the
A horizontal board weighing 198 N is supported at points A and B. The plank serves as a platform for a painter, who weighs 558.5 N. Find out the maximum distance D, such that the plank would not tip, no matter where the painter stands.
You are driving home from school steadily at 94 for 120. It after that begins to rain and you slow to 60. You arrive home after driving two hours and 20 minutes. How far is your hometown from school.
If the light is blue, with a wavelength of 450 nm, at about what distance from the center of the interference pattern will the first-order maximum appear
A concave mirror has a focal length of 44.8 cm. The distance between an object and its image is 65.7 cm. Find (a) the object and (b) the image distance assuming that the ob ject lies beyond the center of curvature.
A 50Ω resistor is placed in series with a 40mH inductor. At what frequency will the current in such a circuit lag the applied voltage by exactly 45 deg.?
A radio can be tuned into a particular station frequency by adjusting the capacitance in an L-C circuit. What is the inductance L of a coil connected to this capacitor if the oscillation frequency of the L-C circuit is 1.69MHz
a 100-kg mass is pulled along a frictionless surface by a force f such that its acceleration is 6 ms2. a 20-kg mass
The resistivity of the commercial copper is 1.72 x 10^-8 m. The diameter of a copper wire in the coil of a solenoid is 0.25 mm, find the heat generated in the coil each second
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