A sailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5\,\dfrac{\text m}{\text s^2}2.5
s
2

m

2, point, 5, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction for 4\,\text s4s4, start text, s, end text. After the wind stops, the sailboat is traveling to the left with a velocity of 3.0\,\dfrac{\text m}{\text s}3.0
s
m

3, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction.

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

What is the scientific definition of energy that relates to work

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass