Questions tagged 'Physics'
312 questions
define simple harmonic motion.?
What is the definition of simple harmonic motion? Could you also provide some examples and explain its significance in physics?
A basket of negligible weight hangs from a vertical spring scale of force constant 1500N/m .?
A basket of negligible weight hangs from a vertical spring scale with a force constant of 1500 N/m. If you suddenly place a 3.00 kg adobe brick in the basket, what is the maximum distance the spring...
How the universe works: Extreme stars video questions?
There are more stars in the universe than there are specks of ______ on Earth. How many Earths could fit inside the Sun? If our Sun were the size of Betelgeuse, it would reach out as far as the p...
A crane lifts the 15000 kg steel hull of a ship out of the water. (a) Determine the tension in the crane’s cable when the hull is submerged?
A crane is lifting the 15,000 kg steel hull of a ship out of the water. (a) What is the tension in the crane’s cable when the hull is submerged in the water? (b) What is the tension in the cable when...
SOMEONE PLS I NEED HELP ASAP
An airplane is flying at a constant speed of 500 mph on a bearing of 45° north of west. Simultaneously, a wind is blowing at 40 mph due south. What are the airplane's actual speed and direction consid...
How do you do this work and energy problem? physics urgent help!?
A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizontal surface before hitting a horizontal spring with a spring constant of 500 N/m...
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet.?
A gun fires a bullet vertically into a 1.40-kg block of wood that is at rest on a thin horizontal surface. If the bullet has a mass of 27.8 g and a speed of 230 m/s, how high will the block rise into...
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of?
A child playing in a swimming pool observes that it is easy to push a small inflated ball under the water’s surface, while a larger ball requires significantly more force. The child also has a styrofo...
Calculate the enthalpy for the combustion of 1 mole of heptane?
The combustion of heptane (C7H16) occurs via the following reaction: C7H16(g) + 11O2(g) → 7CO2(g) + 8H2O(g) The heat of formation values are provided in the table below: Substance ΔH∘f (kJ/m...
Calculate the magnitude of the velocity of the rock just before it strikes the ground?
A man stands on the roof of a building that is 15.6 meters high and throws a rock with a velocity of 31.1 m/s at an angle of 26.2 degrees above the horizontal. For this problem, you can ignore air res...