Một xà lan có kích thước ngoài 10m.20m.1,5m và kích thước khoang chứa hàng 19m.9m.1m tự trọng 70 tấn đang chở 190 tấn hàng nổi trên sông

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

The particles that are found in the nucleus of an atom are