A 40 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2

. What is the weight of

the dropped object?

A) 392 N

B) 9.8 N

C) 40 N

D) 0 N

Which is a vald velocity for an object? 45m/s 45m/s north 0m/s south 0m/s

If two waves collide and form a temporary smaller wave, the interference is?

A cyclist starts at a position of 0 m and takes 3 s to move east to a position of + 8 m. He then cycles west to a position of + 5 m which takes an additional 2 s. What is the cyclist's displacement? a. + 11mb. - 8mc. - 5m d. + 5m

Give a definition for a force

An ionic bond form when atoms

A projectile was launched horizontally with a velocity of 468m/s, 1.86m above the ground how long did it take the projectile to hit the ground

A racquet ball with mass m = 0.241 kg is moving toward the wall at v = 13.7 m/s and at an angle of θ = 34° with respect to the horizontal.

What type of plate boundary would be found along the coast line near Japan's volcanic mountain ranges

When the current in a toroidal solenoid is changing at a rate of 0.0270 A/s, the magnitude of the induced emf is 12.5 mV. When the current equals 1.30 A, the average flux through each turn of the solenoid is 0.00245 Wb.

A spring tide can occur at what day and month?