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A motorist inflates the tires of her car to a pressure of 170 kPa on a day when the temperature is -8.0°C. When she arrives at her destination, the tire pressure has increased to 215 kPa. What is the temperature of the tires if we assume the following?
(a) the tires do not expand °C
(b) the tires expand by 7% °C
An infinite plane current sheet coincides with the xy plane. The surface current density is K'=K' y-hat where K'=const, Find the force per unit length on the wire
During physic lecture a lone ant makes it way across the classroom floor in two distinct stages starting from the wastebasket, Calculate the magnitude and direction of the ants resultant displacement vector
A small, 300 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.
Two meteoroids are heading for earth. Their speed as they cross the moon's orbit is 2.3 km/s. The second meteoroid misses for earth by 2680 km. What is its speed at its closest point.
Assuming that the bricks are lifted with constant speed, illustrate what is the minimum power the motor must produce?
A car drives north at 46 for 10 and then turns east and goes 5 at 60. At last, it goes southwest at 30 for 6.0. What is the average velocity.
A total of 26 bright and 26 dark Newton's rings (not counting dark spot at the center) are observed when 540 light falls normally on a planoconvex lens resting on a flat glass surface.How much thicker is the center than edges.
An airplane is flying with a velocity of 90 at an angle of 22 above the horizontal. When the plane is a distance 122 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A wheel has a radius of 0.5 m. If the wheel rotates on its axis through an angel of 46 degrees, what distance does a point on the rim of the wheel move
Consider an experiment where a subject lands during two conditions from a height of 0.2 m. During the first landing condition, the subject lands 'stiffly' (e.g., very little knee flexion).
Romeo (75.0 kg) entertains Juliet (52.0 kg) by playing his guitar from the rear of their boat at rest in still water, 2.80 m away from Juliet who is in the front of the boat.
A father and a daughter balance a teeter-totter to illustrate the principle of the lever. If the father whose weight is 150 N is 8 m from one end, how far away on the opposite side of the fulcrum should the 50-N daughter stand to balance the teeter-t..
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