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An object with a mass of 8 kg starts from rest on a horizontal surface with friction and the coefficient of kinetic friction is 0.58. Two additional forces are applied to it. One force of 11 Newtons is applied straight downward and another force of 92 Newtons is applied in the +x direction, parallel to the surface. This force parallel to the surface is enough to overcome static friction and move the mass. After the mass has traveled 7 meters over this horizontal surface (the entire surface has friction), these two additional forces are not present any more and it encounters a frictionless quarter-circular ramp. It reaches the top of ramp ("side" of the circle) before it stops. What is the radius, in meters, of the quarter-circular ramp?
You are on an airplane traveling 30° south of due west at 140 m/s with respect to the air. What is the speed of the plane with respect to the ground
A luge and its rider, with a total mass of 81 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 30 m/s. If a force slows them to a stop at a constant rate of 3.9 m/s2, (a) what magnitude F is required for the ..
A person jogs a distance of 100 m at an angle of 360 North of East and then jogs a distance of 100 m east. What is their eastward displacement from their starting point?
How fast must an electron move to have a kinetic energy equal to the energy of a photon of wavelength (l = 600 nm)?(The energy of the electron is assumed to benon-relativistic)
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle, what is the correct angle for his launch ramp (deg) and What is his correct launch speed
A 3.20-kN piano is lifted by three workers at a constant speed to an apartment 21.8 m above the street using a pulley system fastened to the roof of the building. Find the time required to lift the piano
Angry Bird is launched at 20.87 degrees from a height of 18.81 cm at an initial speed of 6.19 m/s. From this information determine where the bird will land
A circular-loop TV antenna with 0.02 m2 area is in the presence of a uniform-amplitude 300 Mhz signal. When oriented for maximum response.
The two ropes seen in the figure are used to lower a 255 kg piano 560m from a second-story window to the ground. How much work is done by each of the three forces?
An apparatus like the one Cavendish utilized to find G has a large lead ball that is 5.9 kg in mass and a small one that is 0.047 kg. Their centers are separated with 0.055 m. Discover the force of attraction between them?
Three resistors with values 1.0 , 2.2 , and 5.5 , respectively, are connected in parallel in a circuit with a 5.0 V battery. What is the total equivalent resistance
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
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