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If your path difference is 1/8 of the wavelength, will this result in constructive or destructive interference? Please show mathematically and explain.
A 69.00 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.20. What would be magnitude of the acceleration.
How much must this spring be stretched to store.
Dave pushes his son on a sled across snow. As Dave pushes hisson speeds up. Which statement is true?
A uniform door weighs 46-N and is 0.9 m wide and 2.5 m high. What is the magnitude of the torque because of the door's own weight about a horizontal axis perpendicular to the door and passing through a corner.
A 13kg box slides 4 m down the frictionless ramp , then collides with a spring whose spring constant is 180Nm.
The hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm. What angular separation between two spectral lines obtained with a diffraction grating that has 4920 lines/cm? (Assume that the light is incident normally on the grating.) fi..
An electric heater carries a current of17.5A when operating at a voltage of 120 V. What is the resistance of the heater?
A 50-gram mass connected to a spring of force constant 35 N/moscillates on a horizontal, frictionless surface with an amplitudeof 4.0 cm. What is the total energy of the system?
An 271 N object is moving to right when forces act on it Two forces act in + y direction (up) 32 N and 17 N One force acts in down , -y, direction 20N Two forces act to right , +x, direction 18 N and 26N, Determine the net force on the particle
The electric field strength is 4.80×10^4 V/m inside a parallel-plate capacitor with a 2.5 mm spacing. find the proton's speed when it reaches the negative plate
A 28.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface, What is the force of friction acting on the block
you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
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