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A projectile is launched with a speed of 10m/s at an angle 30 degrees from the positive x axis. What is the range of the projectile?

8.82 m. The 'range' means the distance along the positive x axis travelled by the projectile during its flight. First calculate the time elapsed over the flight using the SUVAT equation y = usin(θ)t - 0.5gt^...
CW
Answered by Cameron W. • Physics tutor
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Give a brief description of the Big Bang and describe its link to cosmic microwave background radiation.

The Big Bang is the leading theory on the creation of the universe. It states that all mass and energy were concentrated at a single point before a large explosion occurred, signalling the start of time. In ...
RM
Answered by Rani M. • Physics tutor
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If a car is traveling at a speed of 10m/s. The driving force of 500N is required to keep the speed constant . What is the power supplied by the engine?

In the question we are given:Speed=10m/sForce=500NPower is work done per second and also the force times velocity.(could discuss how this works in units: W=J/s = Nm/s therefore Joules = Newton-meters )So pow...
TD
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A coil is connected to an analogue centre zero ammeter. A magnet is dropped (North pole first) so that it falls vertically and completely through the coil. What would be observe on the ammeter?

The ammeter's needle would first be deflected one way, then as the direction of the current reversed, it would deflect the other way.
LV
Answered by Lucy V. • Physics tutor
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Show that a mass on a spring obeys simple harmonic motion.

Let the mass be m . Let the natural length of the spring be L . The defining equation of simple harmonic motion (SHM) is that the acceleration is proportional to, and acts in the opposite direction to, the d...
TJ
Answered by Tia J. • Physics tutor
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