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A projectile is launched with aninitial speed of 60 m/s at an angle of 60 degrees. It lands on ahillside 4 seconds later.
a. What is the projectile's total velocity when it hits the hill?
b. What is the straight line distance to where it lands?
A microscope has an objective lens with a focal length of 12.0 mm. A small object is placed 0.8 mm beyond the focal point of the objective lens. What is the magnification of the real image
7.4 mol of helium are in a 16 L cylinder. The pressure gauge on the cylinder reads 68 psi. calculate the average kinetic energy of a helium atom
Two positive charges, each of magnitude 1 10-6 C, are located a distance of 14 cm from each other. obtain the magnitude of the force exerted on each charge
A uniform electric field exists in the region between two oppositely charged plane parallel plates. Find the speed of the electron when it strikes the second plate
Using a block of transparent, unknown material, What is the index of refraction of this material
Kim says that she was less than 10 ft away from the president when she took a picture of him with her 45-mm focal length camera lens. How close was Kim to the president when she took the picture
A corner construction lot has the shape of a right triangle. If the two sides perpendicular to each other are 38m long and 40.3m long
question1a race car starts from rest on a circular track of radius 407 m. the cars speed increases at the constant rate
What is the charge before the Teflon is removed? B.)What is the potential difference before the Teflon is removed, What is the charge after the Teflon is removed
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
if a particle undergoes simple harmonic motion (SHM) withamplitude 0.25m, what is the total distance it travels in one period
A block of mass 8.4 kg is pulled along a horizontal frictionless floor by a cord, What is the magnitude of the normal force exerted on the mass by the floor
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