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An astronaunt has landed on a strange new planet and conducts an experiment to determine the acceleration of gravity. She uses a pendulum that has a period of oscillation of 2.84 s on the strange planet and 11.85 s on Earth. What is acceleration of gravity on that body?
a person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 16.0 m. she pushes in a direction
An RLC series circuit has R=1.35 kOhm, L=225 mH, and C=2.50 uF (micro farads) and is connected across a 60 Hz power supply. find the reactances of the capacitor and inductor
If you have a light wave that travels through a couple of slits which are .174 mm apart, the light travrls to a screen which is 1.3 m away, How would pattern change if distance between slits doubles
A block of mass m=1.8 kg slides along the inside of a hemispherical bowl of radius r=0.8 m. find the normal force on the block by the bowl
An unstable particle produced in a high-energy collision is measured to have an energy of 483 MeV and an uncertainty in energy of 84 keV. Use the Heisenberg uncertainty principle to estimate the lifetime of this particle. the answer is in seconds
A ball bounces upward from the ground with a speed of 14 m/s, How high above the ground does the ball hit the wall
A glass rod rubbed with silk acquires a charge of +1.1×10?9 . Is the charge on the silk positive, zero, or negative, How much mass has the glass rod gained or lost
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 56.1° and 48.5°, respectively
A 1432.0 g mass is on a horizontal surface with μk = 0.44, Calculate the distance the spring was compressed. What is the velocity of the mass as it loses contact with the spring
Two point charges, q1 and q2 attract each other with a force of.012N. q1 is positive and has a charge of .4uC and q2 is negative and has a charge of -.3 uC.
Water is flowing through a pipe with a constriction. The area of the narrow section is one-half the area of the wide section. what is the velocity of the fluid in the narrow section
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = ?28.0 cm). How far is the object from the converging lens
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