Yosef applies an input force of 50 N to a crowbar. The crowbar applies a force of 750 N to the lid of a crate. What is the mechanical advantage of the crowbar?

The mechanical advantage of the crowbar is

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Which of the following would occur when the number of coils is increased

how could you measure the amount of elastic potential energy in a streched rubber band? think about the definition of energy when planning your investigation

A race car accelerates on a straight road from rest to speed of 180 km/hr in 25s. Assuming uniform acceleration of the car through out find the find the distance covered in this time.

3 common states of matter

What were two arguments or lines of evidence in support of the geocentric model?

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?

How to identify additional materials

Tarzan runs at 6 m/s and grabs a vertical vine (negligible mass) 4.1 m long which is tied to a tree at the top. Tarzan swings up. Determine the maximum height Tarzan will swing up and the angle the vine makes respect to vertical.