riddle
Did you hear about . . . the words are something like away five ten music were who tigers a two cash got the store dough etc .
4th grade math
help me please
Physics - work done
A variable force F acts through a displacement d. The magnitude of the force is proportional to the displacement, so F=kd, where k is constant. a) Sketch a graph of this force against position up to position x. b) According to the equation, what is the value of the force at x?...
Physics - gravitational potential energy
When developing the equation for gravitational potential energy, why is it necessary to assume that the mass is rising at a constant speed?
Physics
If the force of friction is constant, prove that the stopping distance of a car on a level road varies directly with the square of the initial speed.
Physics - Inelastic
Imagine that you have a very powerful water pistol. Describe in detail the experiment that you could perform, including the measurements that you would make, to determine the velocity of the water as it leaves the pistol.
Physics
A car with mass of 1875kg is traveling along a country road when the driver sees a deer dart out onto the road. The driver slams on the brakes manages to stop before hitting the deer. The driver of a second car with 2135kg is driving too close and does not see the deer. When t...
Physics - Inelastic Collision ( check + help)
How is it possible that mass which is 0.155kg is not taken into consideration? You solve it as a 2D collision and thereafter you obtain the two equations, two variables and you solve you will get V' Thereafter you find if it is elastic or not by equating the kinetic energy
Physics - Inelastic Collision ( check + help)
A billiard ball of mass 0.55kg moves with a velocity of 12.5m/s towards a stationary billiard ball of the identical mass and strikes it with a glancing blow. The first billiard ball moves of at an angle of 29.7deg clockwise from its original direction, with a velocity of 9.56m...
Math - Instantaneous and average rates of change
a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain. Describe a real life situation that this graph could represent. b) Describe a graph which the average rate of change between two points is equal to the inst...
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