A boy pulls his toy on a smooth horizontal surface with a rope inclined at 60 degrees to the horizontal. If the effective force pulling the toy along the horizontal surface is 5N, calculate the tension in the rope

Danilo is sliding down a slide. What forces are acting on him as he slides

Which of the following plays a major role in creating deep ocean currents

On a sunny day does a bird or an aeroplane flying high in the sky casts its shadow on the ground

The radio waves of a particular AM radio station vibrate 680,000 times per second. What is the wavelength of the wave?

suppose the distance between the sun and the earth were quadrupled. what exactly (numerically) would happen to the gravitational force between earth and the sun

Two masses are separated by 1 m. suppose the masses are moved so they are 2 m apart how will the gravitational force change

Bob rubs a piece of fur on a hand rubber rod, giving the rod a negative charge. what happens?

The period of a simple pendulum is 3.8 s. the length of the pendulum is doubled. what is the period t of the longer pendulum? t = s

True or false - sound waves can travel across outer space.

In which one of the following locations can a person hear the echo of a sound? a. At least 33.2 meters behind the reflecting surface b. Less than 16.6 meters in front of the reflecting surface c. Less than 33.2 meters behind the reflecting surface d.