A worker drops a wrench from the top of a tower 80m tall. What is the velocity when the

wrench strikes the ground?

interval (from lowering the body to his feet taking off) lasts for 0.3 s and the mass of the player is 90 kg. Ignore air resistance. Part A Determine the force that the the player exerts on the surface when he jumps.

Rank the following scenarios based on the amount of work performed from largest to smallest. 1. A force of 100 N is applied to an object as it is moved 4.0 m. 2. A force of 150 N is applied to an object as it is moved 2.0 m. 3.

Energy is passed from particle to particle Energy reaches the ear, which allows for hearing A sound wave is produced when an object vibrates. Energy from the object is transferred to particles around the vibrating object.

How much work does a person do in pushing a box with a force of 10 N over a distance of 4.0 m in the direction of the force?

The power in an electrical circuit is given by the equation P = RR, where / is the current flowing through the circuit and Ris the resistance of the circuit. What is the current in a circuit that has a resistance of 30 ohms and a power of 2 watts? A.

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?

A student examining a joint observes collagen-rich connective tissue fibers linking the bones, but finds no synovial cavity. Which structural classification fits the observed joint?