A lander or orbiter is a kind of artificial satellite

Determine the number of ways the faces of a regular tetrahedron can be colored with three colors

Which of these stars has the hottest core? A) a blue main-sequnce star. B) a red supergiant. C) a red main-sequence star.

An archer needs to hit a bullseye on a target at eye level of 60ft away. If the archer fires the arrow from the eye level with a speed of 47ft/s at an angle of 25.0 degrees above the horizontal, will the arrow hit the target

Which substance requires the most heat to melt 1 kg of the substance? A. Copper B. Mercury C. Gold D. Helium

In physics class, Anne is designing a small circuit that can operate a mixer. Identify the devices she should use in the circuit. Anne should use a (motor, buzzer, bulb, battery) to transfer electric energy into motion.

An engineer wishes to design a hydraulic system that will transmit pressure of 10,000 pascals using a force of 15 newton's how are large an area should the input piston have

What is the meaning of heredity

If you push on the sides of a filled balloon, how does the gas pressure inside the balloon change?

A car travels west for 240 km in 4 h. what is the car's velocity?

Dane is holding an 8 kilogram box 2 metres above the ground. How much energy is in the box's gravitational potential energy store? Assume Dane is on Earth, where g = 10 N/kg.