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A steel cable with total length 25 m and mass 120 kg is connected to two poles. The tension in the cable is 3,097 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the wavelength of the resulting wave on the cable.
A spring has a spring stiffness constant k of 100N/m . How much must this spring be compressed to store 35.0J of potential energy? A 69-kg trampoline artist jumps upward from the top of a platform with a vertical speed of 5.2m/s. How fast is he going..
Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 21m that makes an angle of 50? with the vertical, Calculate Tarzan's speed just before he reaches Jane
A block slides down an inclined plane, starting from rest and being pushed with a constant acceleration of 4.60 m/s2 over the distance of 20.80 cm. It then decelerates at the constant rate of 1.03m/s2 (because of friction), until it again comes to..
The image of a tree on a 35 mm color slide is 1.9 mm high. It is to be projected onto a screen 6 m from the slide, and is to appear 409 mm high. What is the magnification of the system
A fathom is a method for measuring lengths, usually reserved for measuring the depth of water. what is the distance in fathoms
A closed loop of wire is given the shape of a circle with a radius of 0.483 m. find the magnitude of the average induced emf in the wire during this time
A ball is thrown straight up from the ground with speed v 0 . At the same instant, a second ball is dropped from rest from a height H , Find the time at which the two balls collide
An object placed 20 cm from a concave mirror forms an image that is three times as large as the object on a screen. Discover the radius of curvature of the mirror.
A subway train starts from rest at a statrion and accelerates at a rate of 1.65m/s^2 for 14.2s. Find the total distance covered
a vertical force t is exerted on a 7.5 kg body near the surface of the earth. find the y-component of the acceleration
You normally drive on the freeway between San Diego and Los Angeles at an average speed of 91 km/h (57 mi/h), and the trip takes 2 h and 42 min. How much longer does the trip take
If I eat 500g of something which is 700Bq/kg, with a half life (biological and physical) of 55 days, what is the dose and effective dose on someone who is 70kg.
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