Na siloměr zavěsíme pod sebe závaží s hmotnostmi 50 gramů 100 gramů, a 200 gramů. Jak velikou sílu bude ukazovat siloměr?

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

The least penetrating form of radiation is