Why si system been developed? Give reason.

Determine the change in velocity of a car that start at rest and has a final velocity of 20 m/s north

A street lamp weighs 200 newtons and is supported equally by two wires that form an angle of 120° with each other. What is the tensional force in each of these wires?

The sun transfers thermal energy to the earth by what energy

A rod 25 cm long moves in a plane perpendicular to a magnetic field of 600 G. The velocity of the rod is perpendicular to its length and the potential difference between the ends is 10 V. Find the speed of the rod.

A student is asked to design a cart that will have the smallest force of impact when it collides with another object. Which of these would be the best design

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?

How was helium first discovered? mining of the radioactive element uranium using spectral analysis of the Suns' emission spectra o hubble obtaining samples from explosions off the surface of the sun deep sea mining off the coast of Texas

If you get something in your eyes in the lab, what is the most important thing to do?

In the physics of motion a force acting over a distance is?

What is the resistance of a clock if it has a current of 0.30 a and runs on a 9.0-v battery? 0.033 2.7 9.3 30