A rock is dropped from a window 5 m above the ground. the rock hits the ground 1 s later with a speed of 10 m/s. what is the average speed of the rock during this time

The overall magnification of a compound microscope with an objective lens magnification of 5 and an eyepiece magnification of 30 will be A. 6. B. 100. C. 150. D. 280.

A rocket lift off the surface of earth with a constant acceleration of 20 m/sec^2. how fast will the rocket be going 1 min latter?

What happens to an electric current produced from an electromagnet when the direction of the magnetic field changes?

Heat should be applied to open the tight lid of bottle? which effect of heat is it? write with reason

An African elephant can heights of 4m and possess a mass of as much as 6000kg. Determine the weight of an African elephant in Newton

Four potential forces can act on the ball Which combination of forces will keep the ball in static equilibrium? The length of the arrows represents the magnitude of the force A and B A and C B and D 8. Cand D Submit Force, Mass, and Motion

The resultant of a 50N force acting on an object to the right and a 20N force acting on the object to the left is what

A student conducts and investigation to determine a ball's mass, displacement, velocity and acceleration. (A) Identify each of the following as wither a vector or scalar quantity: Mass, Displacement, Velocity & Acceleration.

A ball is rolling down a hill at + 1.0 m/s, The ball is uniformly accelerating at +4.9 m/s?, What will the ball's velocity be 4.0 s later? +8.9 x 100° m/s +2.0 x 10^1 m/s +2.1 x 10^1 m/s -1.9 x 10^1 m/s

What is the difference between unicellular and multicellular organisms?