Acar starts from rest and travels for 5.8 s with a uniform acceleration of +1.2 m/s2. the driver then applies the brakes, causing a uniform acceleration of -1.7 m/s2. the breaks are applied for 1.60 s.
(a) how fast is the car going at the end of the braking period?
4.2 m/s
(b) how far has the car gone from its start?

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages

What are known as the properties of substances that describe a substance et does not change that substances?