During a race such as a marathon, the skeletal muscle cells in your legs use a lot of energy to continually contract and power your muscles. What organelle is most likely abundant in skeletal muscle cells?

A starlike object seen on deep sky photographs coincides with an intense radio source and has a spectrum in which the characteristic lyman pattern of hydrogen spectral lines has been shifted from the ultraviolet to the visible spectral range.

Liang is working with an electrical circuit. She replaces a straight electrical wire with a coiled wire.

Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. The edges of the two mirrors meet at a 30° angle. A light ray that approaches mirror 1 is parallel to mirror 2.

A projectile was launched horizontally with a velocity of 468m/s, 1.86m above the ground how long did it take the projectile to hit the ground

Which statement describe velocity and acceleration

A motor-driven winch pulls a 50.0 kg student 5.00 m up the rope at a constant speed of 1.25 m/s. how much power does the motor use in raising the student? how much work does the motor do on the student?

By what percent must one increase the tension in a guitar string to change the speed of waves on the string from 301 m/s to 343 m/s?

A plane is traveling from one location to another 10,000 miles away. If the plane travels at a speed of 575 miles per hour, how long will it take to get there?

At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 183 lb. During the storm, the crewman finds a maximum reading of 230 lb and a minimum reading of 138 lb. A.

A 1.5m wire carries a 2 A current when a potential difference of 52 V is applied. What is the resistance of the wire?