Explanation:
Speed = 10 and miles = 5
(a) Speed + 12 – miles * 2
10 + 12 - 5 × 2
= 12
(b) speed + miles × 3
10 + 5 × 3
= 25
(c) (speed + miles) × 3
(10 + 5) × 3
= 45
(d) speed + speed × miles + miles
10 + 10 × 5 + 5
= 65
(e) (10 – speed) + miles / miles
(10 - 10) + 5/5
= 1
Therefore, this is the required solution.
Based on the very tip of the arrow the best answer would be; 3.3cm
But i could very well be wrong and it may be 3.35, but i would say 3.3 if it just wants to the nearest 10th
Answer:
2.5 x 10⁻⁹ m
Explanation:
E = Energy of photon = 500 eV = 500 x 1.6 x 10⁻¹⁹ J
c = speed of photon = 3 x 10⁸ m/s
λ = wavelength of photon = ?
Energy of photon is given as
inserting the values
λ = 2.5 x 10⁻⁹ m
Intial velocity u=3m/s
final velocity v
2
=u
2
+2as=3
2
+(2×2×5)=29 ⟹v=5.3m/s
KE=
2
1
m(v
2
−u
2
)=
2
1
×2×((5.3)
2
−3
2
)=20J
