A cart moves on a surface when it is pulled by a constant force. The total mass of the cart is 2.0 kg and the accelerometer data show that its acceleration is 0.4 m/s2. Another trial is done with the same constant force, but the total mass of the cart is changed to 0.5 kg.
What acceleration should the accelerometer read?
A. 0.1 m/s2
B. 0.2 m/s2
C. 0.4 m/s2
D. 0.8 m/s2
E 1.6 m/s2

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.