A driver traveling at 100km/hr on a rural road sees a sheep 32m ahead in the middle of the road. His reaction time is 0.70s, after which he breaks at an acceleration of -0.60g. Unfortunately, this...

A driver traveling at 100km/hr on a rural road sees a sheep 32m ahead in the middle of the road. His reaction time is 0.70s, after which he breaks at an acceleration of -0.60g. Unfortunately, this...

It's about an experiment that asks you to determine the free-fall acceleration, g , using simple pendulum

A balloonist at an altitude of 800m drops a package. One second later, the balloonist drops a second package. How far apart are the packages the instant that the first one hits the ground ?

A 1 kg model rocket is launched at a 30 degree angle from the floor. The small rocket burns for 5.00 s and has a steady thrust of 20.0 N. What maximum altitude does the rocket reach and range of the...

I am in need of some help with these physics problems

A pencil rolls off the edge of a table that is 80cm high. How long does it take (in s) to hit the floor ?

In an accident of the freeway, a sports car made skid marks 240m long on the pavement. The police estimated the braking acceleration of the car to be -8.82m/s^2 given the road and weather conditions...

while on a 40km bike ride, a cyclist rides the first 20km at a speed of 20km/hr. what speed is required for the final 20km if the average speed for the trip was 10km/hr

How do I solve this? A wave has an amplitude of .0800 m and is moving 7.33 m/s. One oscillator in the wave takes .115 s to go from the lowest point in it's motion to the highest point. Find the...

A kid starts zigzagging away from his friend and finally get hit. The friend walks directly to him after he got hit. What is the magnitude and direction the kid with the gun takes toward his friend...

An infinite number of identical charged rings of radius w and charge Q are arranged coaxially along the z- axis such that each adjacent pair is a distance w apart and one lies with the origin in its...

Einstein's Theory of Relativity, When objects travel faster time slows down for them relative to other people. People say "Astronauts age slower because they travel faster in space, obviously...

Star A has magnitude 3.5, and star B has magnitude 1.2. What is the ratio of the flux of star A to the flux of star B? Express your answer to 2 decimal places (rounding appropriately).

The flux ratio of two stars is 24. What is their magnitude difference? Use the formula below, and express your answer to 1 decimal place

An annulus is a circular disk with a hole through the center. Suppose an annulus with an outer radius of 9 cm and inner radius of 5 cm is placed horizontally and bears a uniform surface charge density...

Derive a symbolic expression for the speed v at which a particle of charge -Q and mass m must move to hold itself in a circular orbit of radius r centered on a massless particle of charge 4Q that...

What frequency is associated with 434.05 nm?

A severe storm on January 10, 1992, caused a cargo ship near the Aleutian Islands to spill 29,000 rubber ducks and other bath toys into the ocean. Twelve months later, hundreds of rubber ducks began...

If an object has energy, can it also have work? Explain

1.) The orbital period of Mars is 2.095 years. Mars is 1.5 au. (distance) Combine the two? 2.) Graph the period in years squared against the distance from the Sun (in au) cubed?