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A car is going with a constant speed of 15 m/s (about 34 mph) in a school-crossing corner, where the speed limit is 10 m/s (about 22 mph). A police car, stopped at the corner, starts off in pursuit with constant acceleration of 3.0 m/s2. (9 points)
How much time does it take for the police car to catch up this car?
What is the speed of the police car at that point?
What is the distance traveled at that point?
The electromagnetic wave used in a microwave oven have a wavelength of about 12.228 cm. What is the frequency of the radiation
A rubber raft of mass 3M floats past a dock at 1 m/s toward the east. Find the final velocity of the raft and girl
How long must a 0.60 mm diameter silver wire be to have a 0.56 A current when connected to the terminals of a 1.5 V flashlight battery
A baseball pitcher can throw a ball with a speed of 40. He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a lazy 30. What is the speed of truck.
Two 42 ohm resistors are connected in series to a 12 volt battery. What is the current through the circuit
M1 is a spherical mass (43.0 kg) at the origin. M2 is also a spherical mass (17.2 kg) and is located on the x-axis at x = 99.0 m. At what value of x would a 16.5-kg mass experience no net gravitational force due to M1 and M2?
What's the advantage of launching space vehicles from high flying aircraft in place of from the ground.
A ten pound car wheel has a moment of inertia of 0.52 kg m2. How much torque is required to stop the wheel in 43.21 s?
A steel cable with a total length of 29.2 m and total mass of 74 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
If the magnitude of vector A is 10.0 m and that of vector B is 12.5 m, what is the range of values allowed for the magnitude of the sum of A and B?
An elevator can lift a 113 N aircraft a distance of 28 meters in 10 s. what is the power output of the elevator
A disoriented physics professor drives a distance 3.25km north, then a distance 3.65km west, Find the direction of the resultant displacement, using the method of components
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