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1-What are the units of the spring constant k in SI units, which are also called MKS units (MKS = meter-kilogram-seconds)? What are the units in the cgs system (centimeter-gram-second)?2-A given spring stretches 15 cm when it is loaded with a 250 gram weight. What is the spring constant of the spring?
A spherical object has an outside diameter of 50.0 . Its outer shell is composed of aluminum and is 1.80 thick. The remainder is uniform plastic with a density of 810. Determine the object's average density.
A student yells across a street at a concrete wall. The student hears an echo 0.500 seconds later. If the speed of sound in air is 343 m/s, what is distance from the student to the wall only.
A piano tuner stretches a steel piano wire with a tension of 830N . The wire is 0.400m long and has a mass of 3.10g. What is the frequency of its fundamental mode of vibration
It takes 2.80 s for a small ball with a mass of 0.060 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released
A Histogram shows that the mean of rain in the area has increased over the last 5 years. What is the probability that the mean would be higher this year than in the previous 5.
In a friendly game of handball, you hit the ball essentially at ground level, How high is the ball when it hits the wall
a student builds and calibrates an accelerometer, which she uses to determine the speed of her car around a certain unbanked highway curve. what is the radius of the curve
X rays diffract from a crystal in which the spacing between atomic planes is 0.188 nm. The second-order diffraction occurs at 59.0 degrees. What is the angle of the first-order diffraction?
A neutron star is an extremely dense, rapidly spinning object that results from the collapse of a star at the end of its life. What is its rotational inertia
Two point charges totaling 7.00 µC exert a repulsive force of 0.100 N on one another when separated by 0.719 m. What is the charge on each? smallest charge largest charge (b) What is the charge on each if the force is attractive? smallest charge l..
What are the accelerations of m1 and m2?
The outer one has a length of 46.0 cm and contains 6700 coils, while the coaxial inner solenoid is 4.0 cm long and 0.150 cm in diameter and contains 24 coils. Find the emf induced in the inner solenoid
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