At what angle should you launch a projectile from the ground so that it has the

a) greatest time of flight

b) greatest range, assuming no air resistance

The first device Faraday invented based on Ørsted's observation was the motor. What did this device do?

Hospitals are interested in ocean research because:

If a platinum wire has a resistance of 15 Ω and is connected across the terminals of a 3.0 V flashlight battery, how much current is in the wire? 1.0 amps 5.0 amps 7.5 amps 0.20 amps

If you get married in 2019, and then in the future 28 years have past what would your age be. Also when you get married in 2019 the age is 18

What does newtons first law of motion state about objects on which forces are balanced?

A transfer by work from the system, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s. The specific internal energy, u, decreases by 5 kJ/kg and the acceleration of gravity is constant at 9.7 m/s².

What is the best prediction for the weather on the day after high pressure system passes

Is it possible to have motion in the absence of a net force?

There are 2 charged particles, A and B. You know that particle A is positively charged. When you place particle B next to particle A, then particle B starts moving away from particle A. What does this mean for particle B?

The speed of light is now to be defined 2.99792458x10^8 m/s express the speed of light to three significant figures five significant figures seven significant figures