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an antelope moving with constant acceleration covers thedistance between two points 70.0m apart in 7.00s. its speed as itpasses the second point is 15m/s.
a) what is its speed at the frist point?
b) what is its acceleration?
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. How fast will the payload be traveling when it reaches the bottom of the shaft
A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 116 m, at what frequency must it rotate so that it simulates Earth's gravity?
A tank contains mercury, whose density is 13,600 kg/m^3. Find the force exerted by the mercury on a circular plug
A certain material is in a room at 27°C. If the absolute temperature (K) of the material is tripled, What is the value for α , the temperature coefficient of resistivity
A glass plate (n= 1.61) is covered with a thin, uniform layer of oil (n=1.16). A light beam of variable wavelength is normally incident from air onto the oil surface. calculate the thickness of the oil film
a 18 cm tall object is placed in front of a concave mirror with a radius of 26 cm. the distance of the object to the mirror is 74 cm. Calculate the magnitude of the image height
The record for the highest speed achieved in alaboratory for a uniformly rotating object was 2.01*10^3 m/s for a0.15-m long carbon rod. What was the period of rotation of the rod
An electron and a proton are separated by 2.4 nm, What is the magnitude of the force on the electron
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
A 5.27-kg object passes through the origin at time t = 0 such that its x component of velocity is 4.95 m/s and its y component of velocity is -3.03 m/s.
A force vector has a magnitude of 594 newtons and points at an angle 37o of below the positive x axis. What are (1) the x scalar component and (2) the y scalar component of the vector.
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