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A 5.0 kg ball of clay is moving to the right with a speed of 4.5 m/s, a 2nd ball of clay is moving to the left with a speed of 5.4 m/s. The clay balls collide and stick together, and this larger blob of clay moves to the right with a speed of 0.56 m/s. What was the mass of the 2nd ball of clay?
In a single-slit diffraction pattern on a flat screen, the central bright fringe is 0.9 cm wide when the slit width is 4.60*10 -5 m. When the slit is replaced with a second slit, the wavelength of the light and the distance to the screen remaining ..
A large box of mass 50kg lies on a frictionless inclined plane at an angle of 30º. What is the Normal Force acting on the box
A 20 mW 360 nm laser is incident on a metal anode. The metal in the anode has a work function of 1.80 eV. What is the de Broglie wavelength of the emitted electrons
A crane does 62,500 Joules of work to lift a boulder a distance of 25.0 meters. How much did the boulder weigh? (Hint: The weight of an object is considered to be a force if units of newtons.)
a 12.0 kg mass lies at x=-80.0 cm. A 21.0 kg mass is at x= 70.0 cm. The 12.0 kg mass is not moved to a different point on the x-axis. There is not a zero net force on the 10.0 kg mass. What is the new location of the 12.0 kg mass
A tandem (two-person) bicycle team must overcome a force of 155 N to maintain a speed of 9.10 m/s. Find the power required per rider
Discuss the humidity in an air conditioned room and in a heated room in the winter. Why must we use a humidifier and dehumidifier? If the outside temperature is 41o F and room temperature is 68o F should we utilize dehumidifier why or why not?
(a) What is the speed of the bullet/block combination immediately after the collision? (b) What is the coefficient of restitution for this collision? Why? (c) Find the center of mass kinetic energy and the initial value of the convertible energy for ..
A concrete highway is built of slabs 13 m long at 20 degrees Celsius. How wide should the expansion cracks between the slabs (15degrees Celsius) be to prevent buckling if the range of temperature is -30 degrees Celsius to 51 degrees Celsius.
A high-performance sports car can go from 0 to 100 mph in 6.6 s. (Assume the car travels in the positive direction. Indicate the direction with sign of you answer.) a) What is the car's average acceleration (in SI units; meter-kilogram-second)?
NASA sends a new satellite to study Mars. The satellite orbits Mars in uniform circular motion with a velocity of 2.3 km/s, and an orbital period of 6.07 hours. What is the radius of the satellite orbit
You and your friend each drive 50.0 km. You travel at 90.0 km/h. Your friend travels at 95km/h. How long will your friend be waiting for you at the end trip
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