We use a j-type thermocouple to measure an aluminum piece at 390 c. if the voltage output of the thermocouple is 18.712 mv, a) find the temperature of the reference junction of this thermocouple b) find the maximum allowable time constant for this thermocouple if we want to use it to measure a temperature oscillating at an 8 hz frequency with a dynamic error less than 3% in absolute value. assume the static sensitivity k is 1.

not moving. pos accel,

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

inverse v=i*r

nice nice