Top answers

A cannon ball is fired at an angle 30 degrees from horizontal from a cannon with a speed 30km/h, a) calculate how high the cannonball flies, and the horizontal distance from the cannon the cannonball reaches

convert 30km/h = 8.3 m/s calculate initial vertical speed U v = 4.15m/s, calculate initial horizontal speed = 7.19m/s apply suvat equations v = u + at, s = ut + 1/2at 2 and solve for t, s final answers s hor...
JD
Answered by James D. • Physics tutor
9162 Views

Describe the events of translation in DNA to produce mRNA

answer should include the use of helicase to 'unwind' DNA, breaking of hydrogen bonds, template and/or coding strand, free RNA nucleotides in the nucleus binding to exposed bases, attraction of base pairs us...
BS
Answered by Bronte S. • Biology tutor
3229 Views

John has been feeling stressed in the past few weeks as he is planning Christmas at his home on top of stress at work due to deadlines in projects with his colleagues. using research, explain why John is feeling stressed.

answers can include explanations using research on workplace stress, life changes or daily hassles (more difficult). Holmes and Rahe is likely to come up or SRRS scale, any applicable research can be awarded...
BS
Answered by Bronte S. • Psychology tutor
2453 Views

which expression is equivalent to x^2-4? (x-2)^2 (x-2)(x+2) (x+2)(x+2) x^2(-4)

(x-2)(x+2) because the x values cancel out leaving the integer and x^2 value.
BS
Answered by Bronte S. • Maths tutor
4678 Views

A cuboid has a rectangular cross section where the length of the rectangle is equal to twice its width x cm. THe volume is 81 cm^3. a) show that the total length L cm of the cuboid is given by L=12x+162/x^2

Volume=81 cm 3 b=81/2x 2 L=4x+4(2x)+ 4(b) L=4(x)+4(2x)+4(81/2x 2 ) L=12x+ 162/x 2
BT
Answered by Bilaal T. • Maths tutor
8697 Views