a body whose mass is 40kg runs up a flight of 30steps, each 150mm high in 6 seconds. Find the average power developed

Imagine you are a travel agent in the next century. an eccentric billionaire asks you to arrange a "guinness book of solar system records" kind of tour.

A car accelerates from rest at a rate of + 10m/s**2, how far will it travel in 4 seconds

In a transverse wave that travels through a medium, the molecules of the medium vibrate A. at right angles to the direction in which the wave travels. B. at twice the velocity of the molecules in a longitudinal wave. C.

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A flywheel in a motor is spinning at 530 rpm when a power failure suddenly occurs. The flywheel has mass 40.0kg and diameter 75.0cm. The power is off for 39.

In what way would a digital thermometer be preferable to those from a liquid-based thermometer? Digital thermometer readings are easier to use when performing calculations.

Why does the core of the sun contain more helium and less hydrogen than the surface of the sun?

What happens to a light ray passing through the center of a lens?

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.870 m/s at an angle of 35.0° above the table, and it lands on the magazine 0.0770s after leaving the table. Ignore air resistance.

A force of 5 N accelerates an object. The object's mass is 50 g. What is the acceleration of the object? (Formula: F=ma)