Answer:
∆E = 4.16J
Change in internal energy of the tie and spike is 4.16J
Explanation:
Given;
Mass of spike m = 0.77kg
Initial Speed of spike v = 3.5m/s
Efficiency = 88.3%
Kinetic energy of spike can be calculated as;
K.E = 1/2 × mv^2
Substituting the values;
K.E = 1/2 × 0.77 × 3.5^2
K.E = 4.71625J
Change in internal energy of the tie and spike;
∆E = 88.3% of K.E
∆E = 0.883 × 4.71625J
∆E = 4.16J
Change in internal energy of the tie and spike is 4.16J
Answer:
10.66mm
Explanation:
Given that the elongation is and Length, and Tensile Strength,, The longitudinal stress can be calculated as:
The value of strain-stress, corresponding to '
Hence, the radius of the specimen is 10.66mm
Answer:
Sublimation
Explanation:
It looks like solid transfer into gas directly.
Answer:
The angular acceleration of the centrifuge is -231.74 rad/s².
Explanation:
Given that,
Angular speed = 3500 rev/min = 366 rad/s
We need to calculate the angular displacement
Using formula of angular displacement
Put the value into the formula
We need to calculate the angular acceleration
Using equation of motion
Hence, The angular acceleration of the centrifuge is -231.74 rad/s².