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A physics student monitors the speed and kinetic energy of a 0.32-kg traveling object. At a time of t = 1.0 s, the object is traveling with a speed of 4.5 m/s and at a time of t = 4.0 s, the object has a kinetic energy of 27 J. Determine the following. (a) kinetic energy of the object at t = 1.0 s (b) speed of the object at t = 4.0s
Calculate the speed of an electron after it accelerates from rest through a potential difference of 160 .
A space vehicle is travelling at 5800 km/h relative to the Earth when the exhausted rocket motor is disengaged and sent backward with a speed of 74km/h relative to the command module. The mass of the motor is four times the mass of the module. What i..
The isotope ^(99)Tc* is commonly used in several different types of medical imaging procedures. find the change in the nuclear mass after emission of the gamma ray
A capacitor is connected to a 17 kHz oscillator that produces an rms voltage of 9.0 V . The peak current is 65 mA. What is the value of the capacitance C?
a 5100 kg open train car is rolling on frictionless rails at 26 ms when it starts pouring rain. rain falls vertically.
A glass sheet 1.40 ?m (micrometer) thick is suspended in air. Calculate the minimum value of the index of refraction of the glass sheet that produces this effect
The mechanical advantage of a hydraulic jack is 450. Find the weight of the heaviest automobile that can be lifted by an applied force of 60.0 N
You throw a .6 kg target upward at 15 m/s. When it is at a height of 10 m above the launch period and moving downward, What is the velocity of the target and arrow after the collision
the drawing shows an equilateral triangle each side of which has a length of 2.87 cm. point charges are fixed to each
a 400 lb weight is dragged along the surface of a table by means of a cord attached to a 200 lb weight which passes
What mass of granola, which has a usable energy content of 2,000 cal/g, would be equivalent to the change in gravitational potential energy of a 60.0 kg man who ascends from sea level to the top of Mt. Everest, at elevation 8.848 km? Assume the a..
One object is thrown vertically upward with an initial velocity of 100 m/s and another object with aninitial velocity of 10 m/s. What is the ratio of the maximum height reached by the first object to that of the second object?
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