Robert is accelerating a cart at the rate of 2.2 meters/second2. If the mass in the cart is doubled, and the net force is also doubled, what is the final acceleration?
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f = ma double f and m gives (2f) = (2m)a notice a is unchanged = 2.2 m/s^2
C) The Acceleration Is Doubled
A racecar is equipped with a computer that records the reading on its speedometer every second during a race. If you graph this data, what will be the best choice for the dependent variable?
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Since the device is a speedometer, the data it read is the speed of the racecar. Data recording involving time usually uses time as the independent variable. It was also said in the problem that it records the speed every second which shows that the time interval is constant. This means that only other data, the car's speed, is the dependent variable.
A person opens a door by applying a 10-N force perpendicular to it at a distance 0.90m from the hinges.
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You faded out there before asking your question. Here's some info that might be of interest:
Torque = (force) x (distance from the pivot) = (10 n) x (0.9 m) = 9 newton-meters
An object will remain at rest or maintain constant, straight-line motion unless acted on by a force that is ___________________.A.inertialB.balancedC.unbalancedD.along a straight lineCan someone explain it somehow for me?.
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c) unbalanced . Because if the forces on an object are not balanced, meaning the sum of them is not '0' the object will accelerate to the direction of their sum.
You can see it in the picture. The forces on the object A are balanced meaning their sum is 0 so it will remain at rest or maintain constant. But object B the forces acting on it are not balanced so it will accelerate to the right.
C.unbalanced Newton's Law explains that an object continues at constant speed due to the net force acting on the object being zero. When the net force is not zero (unbalanced), then there is a net force and the object will accelerate.
What is the exact time of a full earth rotation?
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Partyrockchickk is on the right track,but 23:56:04 is not exactly exact. 23h 56m 4.0906s is closer, but stillnot exact. You'll never see an 'exact' number written anywhere. Firstbecause it doesn't work out to an exact decimal of anything, and secondbecause it changes ! The Good Friday earthquake in Alaska changed it,the Fukushima earthquake changed it, the Nepal earthquake changed it,and the daily drag of the tides changes it by something like 0.001second every century.
One thing's for sure: It is definitely not 24 hours.
The exact time is 23 hours, 56 minutes, and 4 seconds. hope this helps hun