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Assuming a planet of mass m moves around the Sun (with mass Ms) in a circular orbit of radius R,(a) find its rotation period(b) explain how the period changes if the mass of the planet is doubled
A 1000-kilogram race car is traveling at 60 m/s around a curved section of track that has a radius of 300 m. What is the centripetal force that acts on the car
A force vector has a magnitude of 579 newtons and points at an angle 41 Degrees of below the positive x axis. What are (a) the x scalar component and (b) the y scalar component of the vector
To stretch a certain spring by 3.00cm from itsequilibrium position requires 9.50J of work, What is the force constant of this spring
An electron is accelerated from rest by the potential difference of 461 V. It then enters a uniform magnetic field of magnitude 184 mT with its velocity perpendicular to the field. Calculate (a) speed of the electron and (b) radius of its path in ..
In gaseous sodium chloride, chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated by 0.240 nm.
A cube of mass m = 7.15 kg is placed on an inclined plane of mass M = 6.67 kg, which makes an angle ? = 48.30° with the horizontal. What is the normal force on the inclined plane from the table underneath it
With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. What is the ratio of the rectangle's width to its length
question11 give an everyday instance that illustrates the difference between acceleration and velocity. give a case of
An air-filled toroidal solenoid has a mean radius of 15.5cm and a cross-sectional area of 4.95cm2. How many turns does the winding have?
A car travels up a hill at a constant speed of 65 km/h and returns down the hill at a constant speed of 20 km/h. Calculate the average speed for the round trip
A negative charge of -2.0 multiplied by 10-4 C and a positive charge of 9.5 multiplied by 10-4 C are divided by 0.30 m. What is the force between the two charges.
A contact lens is made of plastic with an index of refraction of1.52. The lens has an outer radius of curvature of+1.94cm and an inner radius of curvature of+2.54cm. What is the focal length of the lens?
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