急急急，【悬赏300分】在线等，求几个物理公式的英文翻译

Question

F=dP/dt;
45°≤θ＜90°；
0.5πrad＜α≤πrad；
ΔEk=1/2*m*V1^2-1/2*m*V0^2;
ΔE机=E机t-E机0=∑W内非保+∑W外
      →              →
W=∫F（点乘）dS
→  →       →
M= r(叉乘)F
楼下这位，别拿我这200分开玩笑

我不要翻译软件的结果，看看你翻译的是啥破玩意儿

Answer 1

1、F=dP/dt;
F is defined as the derivative of momentum with respect to time.

2、45°≤θ＜90°;
Theta is greater than or equal to forty-tive degree and is less than ninety degree.

3、0.5πrad＜α≤πrad；
Alpha is greater than half pi radian and is less than or equal to pi radian.

4、ΔEk=1/2*m*V1^2-1/2*m*V0^2;
The increment of kinetic energy is equal to half mass multiplied by final velocity squared subtracted from half mass multiplied by initial velocity squared.

5、ΔE机=E机t-E机0=∑W内非保+∑W外
The increment of mechanical energy is equal to the final mechanical energy subtracted from the initial mechanical energy.
It's also equal to the sum of the net work done by internal non-conservative forces and the net work done by external forces.

6、
      →              →
W=∫F（点乘）dS
Work is defined as the integral of the scalar product of force and the differential of displacement.

7、
→  →       →
M= r(叉乘)F
Torque is defined as the vector product of the lever arm and the force.

Answer 2

F=dP/dt;
45 ° ≤θ <90 °s;
0.5 π rads<the α≤π rad;
Δ Ek=1/2* ms*the V12-1/2*m*V02;
The machine of Δ E=the E machine t-E machine doesn't protect inside 0= ∑ Ws+the outside of ∑ W
→ →
W=∫ F(order to multiply by) dS
→→ →
M= r(the fork multiply by) F

Answer 3

ΔE_machine = E_machine(t) - E_machine(0) = ∑W_in + ∑W_out

W=∫F（dot product）dS

M= r(cross product)F

主要这几句吧。其实后两句可写成

W=∫F.dS

M= rxF

Answer 4

你是问怎样用英语念出下列公式：
1 F = dP/dt 说成：F equals the differential coeffecient of P with respect to "t".即 F等于微分dp/dt ,或 p对t的导数；
2 45 <=。....:forty five degree is less than and equals theta and is less than ninety dgree ;
3 zero point five times pi multiplied by radius is less than alpha and is less than pi by radius .
余类推

Answer 5

等号都是equal 价格
1. F=dP/dt;
F equals the derivative of p (momentum) with respect to t (time).
Derivatives mean the instantaneous rate(瞬时速度) of change,
The d in that expression is a differential operator

2. 45°≤θ＜90°；
Θ is less than 90degree and is greater than or equal to45degree

3. 0.5 π rad＜α≤ π rad；
alpha is less than or equal to pi rad(拉德〔吸收辐射剂量单位) and is greater than zero point five pi rad

4. ΔEk=1/2*m*V1^2-1/2*m*V0^2;
ΔEk equals one half (multiplied by) mass (multiplied by) final speed squared (subtract) one half (multiplied by) mass (multiplied by) initial speed squared two

5. ΔE机=E机t-E机0=∑W内非保+∑W外
→ →
variation machinery energy equals final machinery energy subtract initial machinery energy equals sum inside work plus sum outside work

6. W=∫F（点乘）dS
W=∫F（点乘）dS : W (work) = (integral sign) F (dot product) ds
s is the displacement (vector version of distance), so ds is the differential (really small) displacement.
→ → →
箭头是vector
7. M= r(叉乘)F
Mass equals r (cross product) F

Answer 6

F=dP/dt;
45°≤θ＜90°；
0.5πrad＜α≤πrad；
ΔEk=1/2*m*V1^2-1/2*m*V0^2;
ΔE机=E机t-E机0=∑W内非保+∑W外
→ →
W=∫F（点乘）dS
→ → →
M= r(叉乘)F