một ô tô khối lượng 1 tấn, chuyển dộng trên mặt đường nằm ngang với gia tốc 5m/s không ma sát, thì hợp lực lên xe có giá trị nào

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?