Asoap-box derby race car sits on the starting ramp. the ramp is elevated at an angle of 8.5 degrees. the angle between the gravity vector and the ramp surface is a . the force of gravity on the car is 1225 n. the normal force of the track on the car is 1210 n. the frictional force of the track on the car is 15.2 n. what is the net force on the car?

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n