Physics Mach number is used in connection with the speed of ships spacecraft aircraft sound ships spacecraft aircraft sound ANSWER DOWNLOAD EXAMIANS APP
Physics What should a person on a freely rotating turn table do to decrease his (angular) speed ? Raise his hands up Bring his hands together Sit down with raised hands Spread his hands outwards Raise his hands up Bring his hands together Sit down with raised hands Spread his hands outwards ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics Why does bleeding occur through the nose in high mountainous regions ? The pressure of blood in capillaries is greater than the outside pressure The pressure at high altitudes is greater than that on the plains The blood pressure of a person increases at high altitudes The blood pressure fluctuates and finally decreases drastically The pressure of blood in capillaries is greater than the outside pressure The pressure at high altitudes is greater than that on the plains The blood pressure of a person increases at high altitudes The blood pressure fluctuates and finally decreases drastically ANSWER DOWNLOAD EXAMIANS APP
Physics If lift is going up with acceleration, the apparent weight of a body is Less than the true weight More than the true weight Equal to the true weight May be more or less than true weight Less than the true weight More than the true weight Equal to the true weight May be more or less than true weight ANSWER DOWNLOAD EXAMIANS APP
Physics The different colours of different stars are due to the variation of Temperature Density Radiation from them Pressure Temperature Density Radiation from them Pressure ANSWER DOWNLOAD EXAMIANS APP
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