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A car starts from rest and travels for 6.0 s with a uniform acceleration of +2.9 m/s2. The driver then applies the brakes, causing a uniform acceleration of -3.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following.
a) How fast is the car going at the end of the braking period?
b) How far has it gone?
A uniform electric field of magnitude 271 V/m is directed in the negative x direction. A +12.7 ?C charge moves from the origin to the point (x, y) = (15.5cm, 46.0 cm). What was the change in the potential energy of this charge?
How much current flows throughout the television.
A small plane tows a glider at constant speed and altitude. If the plane does 2.09 105 J of work to tow the glider 130m, what is the angle between the tow rope and the horizontal
A uniform solid marble rolls down a symmetric bowl, starting from rest at the top of the left side of the bowl. How far will the marble go up the right side
A catcher catches a 145 g baseball traveling horizontally at 38.0 m/s. How large an impulse does the ball give to the catcher
A 60 kg person jumps from rest off a 5m high tower straight down into the water. find the average force that the water exerts on the diver
A converging lens with a focal length of 6.60cm forms an image of a 3.20mm -tall real object that is to the left of the lens. Where are the object and image located
a motorist drives north for 35 minutes at 85 km/h and then stops for 15 minutes. he then continues north traveling 130km in 2h. what was his total displacement
A glass capillary tube with a diameter of 8.5 mm and length 16 cm is filled with a salt solution with a resistivity of 3.4 ?m. What is the resistance?
A glass sphere of radius R is placed in air and is illuminated with a beam of parallel rays that propagate along line passing through the center of the sphere. calculate the index of refraction of the glass
A vulture circles around its prey and moves in a horizontal circle of radius 45 m with a speed of 15 m/s. at what angle should the vulture be banked so that it does not tend to slip sideways
A 2.50g ice flake is free from the edge of a hemispherical bowl whose radius r is 31 cm. The flake-bowl contact is frictionless. What is the speed of the flake when it reaches the bottom of the bowl?
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