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Q1. David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David?
What is her speed as she passes him?
Q2. A ball of mass 0.188 kg is dropped from a height 3.45 m above the ground.
The acceleration of gravity is 9.8 m/s2.
Neglecting air resistance, determine the speed of the ball when it is at the height 0.684 m above the ground.
Respond in units of m/s
A 2.3 L volume of ideal neon gas (monatomic) is at a pressure of 5.7 atmospheres and a temperature of 390 K. find The number of neon atoms in the gas
A lens for a 35-mm camera has a focal length given by f = 54mm, What is the magnification of the image on the film
A ship sails from seawater (specific gravity 1.025) into freshwater and therefore sinks slightly. find the combined mass of the ship and cargo before it was unloaded
The angular momentum of a flywheel having a rotational inertia of 0.200 kg m2 about its central axis decreases from 5.00 to 1.20 kg m2/s in 2.20 s. What is the average power of the flywheel
A person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed
A typical car battery is composed of six, 2.1 V cells arranged in series to have an Emf of 12.6 V. How many electrons pass through the starter motor
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. compute the length of the wire you must use to wind the coil?
Use Pascal's principle. Given that Fout is 98 lb., the areas of the output and input cylinders are Aout 22 in2 and Ain 5 in2, what is the input force
A car is traveling 23 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.0 m/s2. Explain how far does the car go before it stops?
A basketball player jumps straigh up to launch a long jump shot at an angle of 45 degrees with the horizontal and a speed of 15 m/s. How far from his original position does he land
A home (volume = 1000 m3) built in 1946 has urea formaldehyde insulation, which outgases into the home at a rate of 5 ng/hr, What is the steady state concentration (C) of formaldehyde in the home
question1air is blown throughout a circular and horizontal venturi tube. the diameters of narrow and wider sections of
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