A child in a boat throws a 5.3 kg package out horizontally with a speed of 10.0m/s. calculate the velocity of the boat immediately after assuming it was initially at rest. The mass of the child is 24kg and the mass of the boat is 35kg

An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 18 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. (a) How much time elapses from start to stop

Solar energy heats the surface of the earth including the ground rocks and even roadways as the temperatures of the surfaces increase heat energy is released back

Give a critical discussion on why hardness test needs to perform in engineering practice. b) Discuss 2 possible source of errors (other than parallax error) and how it's can effect the result.

Ojectile is launched on the Earth with a certain ini - tial velocity and moves without air resistance. Another projectile is launched with the same initial velocity on the Moon, where the acceleration due to gravity is one - sixth as large.

By the time she managed/had managed to open the door, the postman already went/had already gone.

A car traveling at 54km/hr slows down uniformly to a velocity of 18km/hr when the break were gradually applied. 1. how long does it takes to cover a distance of 50m 2. what is the deceleration?

A helicopter flies southeast with a ground speed of 250 km/h. If the wind speed is 17 km/h southeast, what is the air speed? A. 249 km/h B. 251 km/h C. 233 km/h D. 267 km/h

Solve 3.4 = 5.1 (3.7x + 4.7) for x.

What is the next deal if the data from an investigation do not support the original hypothesis

Jack drops a stone from rest off of the top of a bridge that is 24.4 m above the ground. After the stone falls 6.6 m, Jill throws a second stone straight down. Both rocks hit the water at the exact same time.