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A ball is hit horizontally at a height of 1.2 m and travels a horizontal distance of 5.0 m before reaching the ground. The ball is at rest when hit. Calculate the initial horizontal velocity given to the ball when it was hit.

In order to find the velocity, we need to know the distance covered by the ball in a known length of time. We are given the distance, 5.0 m, therefore we need to compute the time of flight of the ball. This ...
FS
Answered by Francesco S. • Physics tutor
12680 Views

Find the general solution, in degrees, of the equation 2sin(3x+45°)=1. Use your general solution to find the solution of 2sin(3x+45°)=1 that is closest to 200 °.

The first thing to do when we are facing a trigonometry problem is to to draw the sine and cosine diagram on the unit circle. That takes very little time to do and is incredibly helpful to visualize the peri...
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Answered by Francesco S. • Maths tutor
6625 Views

Describe an advantage of using vector graphics instead of bitmaps to represent images.

Often using vector graphics is better for images with which you want to retain scalability, as vector graphics store the information of the shapes (objects) that make up the image instead of the colour of ea...
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Answered by David S. • Computing tutor
2104 Views

What is hydrocarbon?

A hydrocarbon is a COMPOUND made from hydrogen and carbon elements ONLY. For example, crude oil is a mixture of hydrocarbons.
FH
9257 Views

There are 7 white socks and 4 black socks. 2 are taken at random without replacement. What is the probablity that 2 socks of the same colour are taken?

With a more wordy question like this, it is always best to break it up and write down all of the key pieces of information. So we want to work out the probability of picking: white AND white, OR, black AND b...
FH
Answered by Francesca H. • Maths tutor
4021 Views