What causes the body to need increasingly larger amounts of the

drug to get the same effect that was originally produced?

A car travels at an average speed of 79.2 km/h for 1.00 h and then at an average speed of 43.2 km/h during a second hour. what is the car's average speed during the 2.00 h interval?

Describe how the velocity and acceleration of a skydiver changes as she falls from the plane back to the ground

A box of mass 12 kg is at rest on a flat floor. The coefficient of static friction between the box and floor is 0.42. What is the minimum force needed to set the box in motion across the floor?

The state of matter is an example of a physical property. Why is the state of matter considered aphysical property, even though a substance may change between a solid, liquid, and gas?

A car traveled 60km in 2 hours, 84km in the next hour, and then 68km in 2 hours before reaching its destination. What was the cars average speed?

A stone was dropped off a cliff and hit the ground with a speed of 112 ft/s. what is the height of the cliff? (use 32 ft/s2 for the acceleration due to gravity.) ft ft

A 100 kg vehicle moving at 20 m/s stops when the brakes are applied. What deceleration and braking force is required to stop it: Part A) 5 seconds Part B) 20 seconds

Imagine that a brown horse and a white horse cross of producing Offspring who Coke is made of some brown hairs and some white hairs which pattern of dominance is this example of

A motor-driven winch pulls a 50.0 kg student 5.00 m up the rope at a constant speed of 1.25 m/s. how much power does the motor use in raising the student? how much work does the motor do on the student?

By what percent must one increase the tension in a guitar string to change the speed of waves on the string from 301 m/s to 343 m/s?