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A spring with k = 30.0 N/m is at the base of a frictionless 30.0° inclined plane. A 0.50-kg object is pressed against the spring, compressing it 0.3 m from its equilibrium position. The object is then released. If the object is not attached to the spring, how far up the incline does it travel before coming to rest and then sliding back down? (See the figure below.) m
The tension Tu in upper (taut) segment of the belt is 170 N, and flywheel has a clockwise angular acceleration of 1.67 rad/s2. Find out the tension in the lower (slack) segment of the belt.
Monochromatic light falls on two very narrow slits 0.045 mm apart. Successive fringes on a screen 5.00 m away are 6.2 cm apart near the center of the pattern. estimate the frequency of the light
A grating has exactly 7800 lines uniformly spaced over 2.63 cm, What is the expected angle for the third-order maximum of the green line
Consider 3 Resistors: 10 k?, 20 k?, and 30 k?. Calculate the total resistance if the resistors are connected in series with each other
The wave is travelling to the right at 50.0 m/s. What is the amplitude if the highest displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m.
An atom has only two levels, a ground state with energy -25.0 eV, What wavelength photon is required for stimulated emission of an electron in the excited state
A highway curve with a radius of 555 m is banked properly for the car travelling 150 km/h. If a 1650 kg Porshe 928 S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid.
A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. how many helium atoms are in the cylinder? what is the mass of the helium?
A 42.5 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 19.5 mm diameter, and 13.0 cm length. Compute the inductance of the solenoid
What would be the electric current intercepted by the total surface area of the planet?
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. compute the focal length of the mirror
A dentist's drill starts from rest. After 2.70 s of constant angular acceleration it turns at a rate of 3.0 104 rev/min, Find the drill's angular acceleration
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