Physics, 22.01.2021 05:30 2023jpeterson
Block A of mass 2.0 kg and block B of mass 8.0 kg are connected as shown above by a spring of spring
constant 80 N/m and negligible mass. The system is being pulled to the right across a horizontal frictionless
surface by a horizontal force of 4.0 N, as shown, with both blocks experiencing equal constant acceleration.
Calculate the force that the spring exerts on the 2.0 kg block.
Answers: 1
Physics, 22.06.2019 21:30
A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.
Answers: 2
Physics, 23.06.2019 02:30
Asatellite that goes around the earth once every 24 hours iscalled a geosynchronous satellite. if a geosynchronoussatellite is in an equatorial orbit, its position appearsstationary with respect to a ground station, and it is known as ageostationary satellite find the radius rof the orbit of a geosynchronous satellite that circles the earth.(note that ris measured from the center of the earth, not the surface.) you mayuse the following constants: the universal gravitational constant g is 6.67 \times 10^{-11}\; {\rm n \; m^2 / kg^2}. the mass of the earth is 5.98 \times 10^{24}\; {\rm kg}. the radius of the earth is 6.38 \times 10^{6}\; {\rm m}.
Answers: 2
Block A of mass 2.0 kg and block B of mass 8.0 kg are connected as shown above by a spring of spring...
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