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Solve the all parts of following question given below:
Question: 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.
Part I: How much time does it take for the police car to catch up this car?
Part II: What is the speed of the police car at that point?
Part III: What is the distance traveled at that point?
Please show all work and steps to determine the speed of the police car at that point.
A 620g object traveling at 2.1m/s collides head-on with a 320g object traveling in the opposite direction at 3.8m/s. what is the change in the kinetic energy of the 620g object
Explain the construction of a electromagnetic velocity sensor and explain its working. In a bike speedometer the wheel diameter is 80cm what is the frequency of velocity sensor, which gives 1 pulse per rotation of wheel at a speed of 80Km/H?
A radiator has an emissivity of 0.95 and its exposed area is 1.23m^2. The temperature of the radiator is 100deg C, What is the heat flow rate from the radiator
You get in your car and drive 3 km due north, then you turn left and drive 1.5 km 20o north of west, then you turn right and drive 2 km 35o north of east. What is your total displacement
A generator has a square coil consisting of 288 turns. The coil rotates at 117 rad/s in a 0.218-T magnetic field. What is the length of one side of the coil
An elastic cord is 69.3 centimeter long when a weight of 70.2 Newton hangs from it but is 87.1 centimeter long when a weight of 184 Newton hangs from it. Obtain the spring constant of this elastic cord
What is the new acceleration of box
calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density
a 3.77-kg ball of clay is thrown downward from a height of 3.47 m with a speed of 4.81 ms onto a spring with k 1690
A wooden plank is raised at one end to make an angle of 30° to horizontal. determine the rate of acceleration down the incline
two small spheres spaced 20.0 cm apart have equal charge. How many excess electrons must be present on each spere
Calculate the labour price (rate) variances for each worker level. b. Compute the labour efficiency variances for each worker level. c. Compute the labour mix variances for each worker level.
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