If an object weighs 40 n on earth what would it weigh on the moon

A 5000-kg spacecraft is in a circular orbit 2000 km above the surface of mars. how much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4000 km above the surface?

How does the size of the sun compared to the size of other stars

If two forces 3N and 20N acts on a body of mass 15kg, find the acceleration

Why doesn't the Leaning Tower of Pisa fall over?

Two particles of charge q1 and q2, respectively, move in the same direction in a magnetic field and experience the same magnetic force (direction and magnitude).

Sliding friction definition

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?