Top answers

Two pellets are fired simultaneously from the horizontal, one is fired vertically at 100m/s and the other is fired at 200m/s at an angle theta from the horizontal. Calculate the angle of the second pellet if they both land at the same time.

For this problem, we can look at the two pellets individually. If we find the time taken for the first bullet to reach the ground again, then we know that it must take the same time for the second bullet to ...
CI
3915 Views

Why do we use aseptic techniques in laboratories?

Aseptic techniques prevent the contamination of a sample from other bacteria or pathogens. It is important to do this to ensure that the sample we are dealing with remains pure. Microorganisms are in the env...
EB
Answered by Emma B. • Biology tutor
4119 Views

How does Einsteins explanation of the photons explain the effect of varying intensity of light in the Photoelectric effect?

The Photoelectric Effect - when a material emits electrons from its surface as it's exposed to incident light. It might be expected that an increase in light intensity would increase the KE of the emitted el...
JB
Answered by James B. • Physics tutor
2555 Views

What are the components and function of the autonomic nervous system in the human body?

There are 2 components, the sympathetic nervous system and the parasympathetic nervous system. They are a collection of nerves and neurotransmitters throughout the human body and present in both the central ...
PB
Answered by Pierce B. • Biology tutor
3607 Views

Given y = x^3 + 4x + 1, find the value of dy/dx when x=3

To differentiate this equation, you must bring the power of each x term down to the front and reduce the power of x by 1, with constants disappearing: dy/dx = 3 x 3-1 + (4 1)*x 1-1 = 3x 2 + 4 To find the val...
FH
Answered by Florence H. • Maths tutor
11415 Views