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Nolan Ryan reportedly had the fastest pitch in baseball, clocked at 100.9 mi/hr (45.0 m/s) If such a pitch had been directed vertically upwards at this same speed, then to what height would it have traveled (in meters)?
A bicycle has a kinetic energy of 124 J. What kinetic energy would the bicycle have if it had …
… three times the mass and was moving with one-half the speed?
Answer 1
… twice the mass and was moving at the same speed?
Answer 2
… the same mass and was moving with twice the speed?
Answer 3
… one-half the mass and was moving with twice the speed?
Answer 4
… the same mass and was moving with one-half the speed?
If the price elasticity of demand for tractors priced between $4,000 and $6,000 is -0.75 (using the mid-point method), what will be the percentage change in quantity demanded when the price for tractors falls from $6,000 to $4,000?
Calculator the acceleration on a 2.5 x 10^6 kg rocket if the net thrust of the rocket 2.8 x 10^7 N.
A bicycle of mass 14.6 kg and a rider of mass 50 kg generate a net force of 12 N. how fast are they going after 2.0s?
A net force of 200 N is applied to a large object, causing its velocity to change from 30km/h to 20 km/h in 2.3 seconds. What is the objects acceleration? What is its mass?
Two point charges of 0.04 x 10^-6 C and 0.16 x 10^-6 C are 20 cm apart in air. What is the potential energy of the system?
Find the spring constant k if the spring is stretched a distance 47 m by a suspended weight 19 N. The acceleration of gravity is 9.8 m/s^2. Answer in units of N/m.
A 20 kg brick stands upright on the ground as shown. What is the pressure it exerts on the ground? 10cm x 20cm x 5cm
A temperature difference of 5 K is equal to
