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A cameraman on a pickup truck is traveling westward at 22 km/h while he videotapes a cheetah that is moving westward 29 km/h faster than the truck. Suddenly, the cheetah stops, turns, and then runs at 45 km/h eastward, as measured by a suddenly nervous crew member who stands alongside the cheetah's path. The change in the animal's velocity takes 1.7 s. (Use east as the positive direction.)
(a) What is its acceleration from the prespective of the cameraman?
(b) What is its acceleration from the perspective of the nervous crew member?
The average coefficient of volume expansion for carbon tetrachloride is 5.81 × 10-4 (°C)-1. The average coefficient of linear expansion for steel is 11 × 10-6 (°C)-1. If a 50 gallon steel container is filled completely with carbon tetrachloride when ..
A Camper dives from the edge of a swimming pool at water level with a speed of 8.0m/s at an angle of 30.0 degrees above the horizontal. How far out in the pool (range) does the diver land
Two resistors (connected in series with each other) and a 10 Vbattery are connected in a loop. The voltage drop across the first resistor is 2 V. What is the voltage drop across the second resistor?
construct an imainary example of a study or expeiement in which you get results that are approximately linear but not
there are 200 students riding bikes each producing 110w of heat out put which is used for a heat engine which has an
The coefficient of static friction between the sole of an athletic shoe and the basketball court floor is 0.67. how large is the friction force exerted by Ken's shoes on the floor
Compute the semi major axis of the star orbit
consider a crate at rest on a factory floor. As the pair of workers start to lift it, What happens to the support force acting on the workers feet
Three objects are connected on the table as shown in Figure P5.44. The table is rough and has a coefficient of kinetic frictionof 0.350. find the acceleration of each object and their directions
A highway is to be built between two towns, one of which lies 36.0 km south and 88.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed? length km..
Determine the temperature at which the resistance of atungstenwire will bethree timesits value at 20°C. Assume its coefficient of resistivity remains constant.
A horizontal force of magnitude 31.2 N pushes a block of mass4.42 kg across a floor where the coefficient of kinetic friction is0.631. What is the increase in the kinetic energy of the block
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