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A cameraman on a pickup truck is traveling westward at 24 km/h while he videotapes a cheetah that is moving westward 25 km/h faster than the truck. Abruptly, the cheetah stops, turns, and then run at 42 km/h eastward, as gauged by a suddenly nervous crew member who stands alongside the cheetah's path. The change in the animal's velocity takes 2.3 s. What are the (a) magnitude of the cheetah's acceleration according to the cameraman and the (b) magnitude of the cheetah's acceleration according to the nervous crew member?
vehicle 1 skidded 150 feet and crashed into vehicle 2. vehicle 2 was parked whennbspvehicle 1 struck it and test skids
Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions. Many rotate very rapidly. Suppose that the mass of a certain spherical neutron star is 1.9 times the mass of the Sun and its radius is 20.9 km.
A 45- traffic light is suspended from two steel cables of equal length and radii 0.58 . If each cable makes a 15 angle with the horizontal, what is the fractional increase in their length due to the weight of the light?
A household water supply taps off the water main. The tap is a copper tube with a 1inch inside diameter. What will the flow be from the pipe
You are trying to shoot supplies from the ground so that they reach the top of a plane while flying low. The plane is flying at an altitude of y=20 meters high and with a speed of 30m/s, and you want to project your medical supplies with an initia..
A 0.300 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 29.0 degrees below the horizontal.
A small moon of a giant planet has an orbital period of 1.74 days and an orbital radius of 4.02 105 km. determine the mass of the planet
The intensity level of 39.29 harmonicas in a harmonica band is 70.03 dB. Compute the intensity level generated by one harmonica
a 800kg car pushes a 1900kg truck that has a dead battery. when the driver steps on the accelerator the drive wheels
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
when a laser beam reflects from a rotating mirror it produces pulses of light with a band of frequencies centred on
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