Is semic a mechanical wave

When measuring weight on a scale that is accurate to the nearest 0.1 pound, what are the real limits for the weight of 145 pounds?

A batter hits two baseballs with the same force. One hits the ground near third base. The other is a home run out of the park. Where was there more work done?

What is the reason why feather falls at a slower rate than a Hammer on Earth not on the moon

If element X has 21 protons, How many electrons does it have?

A positive test charge of 5.00 e-5 c is placed in an electric field. the force on it is 0.751 n. the magnitude of the electric field at the location of the test charge is

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.