It is chloroplast which contains chlorophyll that trap light energy and performs photosynthesis.
Positive because the ball is falling downwards.
Work done(Wd)= force x distance travelled in the direction of the force,
Wd=(2x9.8)x1.5
Answer:
Physicists use a hand mnemonic known as the right-hand rule to help remember the direction of magnetic forces. To form the mnemonic, first make an L-shape with the thumb and first two fingers of your right hand. Then, point your middle finger perpendicular to your thumb and index finger.
Eventually wouldn't it collapse in on itself and create black hole.
they are miles per hour(mph),kilometers per hour(km/h),meters per second(m/s)