Two spherical celestial objects, call them A and B have mass M1 and M2 with radius R1 and R2 respectively. Initially they are at a distance d from each
other. Now solve the following problems.
(a) What would be the gravitational acceleration on the surface of object A
? You should ignore B’s presence in this case. [2 marks]
(b) Find the escape velocity of object B. Again ignore A’s presence. [2 marks]
(c) Now lets say these two objects, A & B start to move towards each other
dude to mutual gravitational attraction. Find the time when they will
collide with each other. Express you answers in terms of the given parameters and any universal constant. [6

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.