A person measures his heart rate by counting the number of beats in 30 s. if 33 ± 2 beats are counted in 30.0 ± 0.4 s, what is the heart rate and its uncertainty in beats per minute?

How do I get a back e grit to get in a pond

Which of the following would experience induced magnetism most easily?

If a light bulb is connected to a 120 V outlet and the resistance of the bulb is 30 Ω, what is the current through the circuit? 3600 amps 150 amps 4 amps 0.25 amps

A boy got out of a boat and as he moved forward the boat was pushed back. O First Law of Motion O Second Law of Motion O Third Law of Motion

If you increased the momentum of an object without increasing it inertia then what do you have

What happens to a muscle when you exercise it?

A certain rain cloud at an altitude of 1.80 km contains 3.20 107 kg of water vapor. How long would it take for a 2.90-kW pump to raise the amount of water from Earth's surface to the cloud's position?

The law of conservation of energy states that A) energy may be created, destroyed or transformed. B) energy may be created, but only in certain types of nuclear reactions. C) energy may neither be created nor destroyed; it may only be transformed.

Pushing a rock from a hill top is called

What is a pulsar? a. the remains of a low-mass star after it explodes b. a spinning neutron star emitted radio waves c. another name for a protostar d. the stage before a dying star becomes a supernova