A car is travelling at a velocity of 15 m/s due north speeds up uniformly to a velocity of 30 m/s in 3 seconds. calculate its accelartion.

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

1. For each situation, determine the net force acting upon the object. Situation A Situation B Tfnorm = 3 N = 3 N Ffrict = 5 N app = 5 N Ffrict = 5 N gray = 3N ray = 3 N Situation C Situation D "norm = 20 N Fair = 40 N 20 N gray = 25 N

What is the magnitude of velocity?

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally.

When a 4.20-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.20 cm. (a) If the 4.20-kg object is removed, how far will the spring stretch if a 1.

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale