10. For a particle of temperature T located in an environment \( T_{env} \), what is the temperature dependence of thermal radiation energy that is emitted from the particle? (A)\( T^4 \) (B)\( T^4_{env} \) (C)\( T^4 - T^4_{env} \) (D)\( T \) (E)\( T_{env} \)

1. Four particles are moving on a plane under the same constant acceleration \( \vec{a} = \hat{y} \), each having its initial velocity vector as follows: (a)\( 10\hat{x}+10\hat{y} \), (b)\( 10\hat{x}+8\hat{y} \), (c)\( 8\hat{x}+10\hat{y} \), (d)\( 12\hat{x}+12\hat{y} \). If the respective displacements are \( R_a \), \( R_b \), \( R_c \), \( R_d \), which of the following is correct? (A)\( R_a ＞ R_b ＞ R_c ＞ R_d \) (B)\( R_c ＞ R_b ＞ R_d ＞ R_a \) (C)\( R_d ＞ R_a ＞ R_b ＞ R_c \) (D)\( R_d ＞ R_a ＞ R_c ＞ R_b \) (E)\( R_a ＞ R_c ＞ R_b ＞ R_d \)

10. For a particle of temperature T located in an environment \( T_{env} \), what is the temperature dependence of thermal radiation energy that is emitted from the particle?

(A)\( T^4 \)

(B)\( T^4_{env} \)

(C)\( T^4 - T^4_{env} \)

(D)\( T \)

(E)\( T_{env} \)

相關試題

相關試卷