A rocket with an initial mass of 7.0x10^2kg is in outer space. Suppose that 3/4 of the initial mass is fuel and the final mass is 1/4 of the initial mass. The rocket ejects the mass with a relative speed of 3.0km/s and consumes the fuel at a constant rate in a total time of 90s. Calculate the final speed of the rocket when it starts from rest.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation