archer shoots his arrow towards a target at a distance of 90 m, and hits 'bullseye'. Calculate the acceleration and time taken by the arrow to hit the target with a velocity of 90.0 m/s

An instrument that can detect the presence of an electric charge is an

Three particles are fixed on an x axis Particle 1 of charge q1 is at x a and particle 2 of charge q2 is at x a If their net electrostatic force on particle 3 of charge Q is to be zero what must be the ratio q1 q2 when particle 3 is at x 0.

A motor car of mass 1200kg is moving along a straight line with uniform velocity of 90km/hr. Its velocity is slowed down to 18km/hr in 4s by an unbalanced external force. Calculate the acceleration and change in momentum.

What is the mass of a neutron? | 1/2,000 amu 1 amu 2,000 amu O 1/200 amu

Ben climbs a tree to retrieve a lost football. If he does 2,400 J of work to climb 8 m, how much force is he using? 19,200 N 300 N 0.0033 N 192 N

A microfarad capacitor is charged via a 12v battery. there is 1 kohms resistor in series with the capacitor. how much current is flowing in the circuit after 1 second?

A wave that moves its medium parallel to its direction of travel is a

Why do i have no life, how do i get one?

Why is a ehephent so big is it just big or are we so small?

Which of the following traits might be considered an adaptation fora rabbit living in the Arctic?