# Posts by kidd

Total # Posts: 10

**Math**

Jack:John = 5:6 Jack John 5 6 x 186cm x = 186*5/6 = 155cm Jack's height is 155cm.

**Math**

(45min)(1hr/60min) = 0.75hr 1500/0.75hr = x/2hr x = 4000 newspapers

**math**

What is your question in relation to those equations?

**Physics - Energy**

Thank you. But I am still confused about why exactly the airplane's speed affects the parachutist's initial kinetic energy. The way I break it down is that the airplane's speed is horizontal and the parachutist's initial kinetic energy deals with vertical ...

**Physics - Energy**

So I assumed the horizontal speed of 250km/h of the airplane is not needed to obtain the solution? Using Conservation of Energy theorem: Epgi+Eki = Epgf+Ekf+E mghi+(1/2)mvi^2 = mghf+(1/2)mvf^2+E (75.2kg)(9.80m/s^2)(3610m)+(1/2)(75.2kg)(0m/s)^2 = (75.2kg)(9.80m/s^2)(0m)+(1/2)(...

**Physics - Energy**

An airplane is flying with a speed of 250km/h at a height of 3610m above the ground. A parachutist whose mass is 75.2kg, jumps out of the airplane, opens the parachute and then lands on the ground with a speed of 3.75m/s . How much energy was dissipated on the parachute by the...

**ENGLISH SUPER QUICK QUESTION**

it is a pronoun, look it up!! @anonymous

**math**

Nakim simplified 3 times the square root of 2x plus x times the square root of 8x minus 5 times the square root of 18x and got -10x times the square root of 2x for an answer. Part 1: Using complete sentences, explain what Nakim did wrong. Part 2: Show all your work to simplify...

**physics**

A 9.90-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.372. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, (b) accelerating upward with an ...

**social studies**

give me informetion about kailashnath temple like it's physical environment ,it's features,it's need to conserve and stories related to it and everything else about this temple urgently plzzzzzzzzzzzzzzzzzzzzz now!!!!!!!!!!!!!!!!!!! Thank you for using the Jiskha ...