Why cant you feel the force attraction between mars

Why do solids have a definite shape and a definite volume?

Why is acceleration called vector quantity

The weight w (in pounds) of an object varies inversely with the square of the distance d (in miles) of the object from the center of Earth. At sea level (3978 miles from the center of Earth), an astronaut weighs 210 pounds.

Albert jumps upward with an acceleration of 1.0 m/s2 while he is in an elevator that is accelerating upward at a rate of 1.5 m/s2 What is Albert's total acceleration?

A 9 V battery sends a current of 0.5 A through a resistor. What is the value of the resistance?

How does increasing the amount of charge on an object affect the electric force it exerts on another charged object?

A diffraction grating is illuminated simultaneously with red light of wavelength 670 nm and light of an unknown wavelength. The fifth-order maximum of the unknown wavelength exactly overlaps the third-order maximum of the red light.

Four soccer players are running down the field at the same speed. Player 1 weighs 145 lbs and is running toward the north goal, player 2 weighs 175 lbs and is running toward the south goal, player 3 weighs 155 lbs and is running toward the south

Pure water has a hydrogen ion concentration of 1 x 10 (-7) M and a ph of 7. A student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10 (-3).

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