General Physics

Physics is experience, arranged in economical order.

A bicycle rider is traveling at 7 m/s. During an 8 s period, the bicycle rider then slows down with a constant acceleration to a speed of 3 m/s. How far does the bicycle rider travel during 8 s?.

do you have to connect the dots on a graph everytime or only sometimes

The work needed to move a couch 5 meters with a 15 N force is

Which of these statements about atoms is/are correct? a. Are the largest unit of matter that can take part in a chemical reaction. b. Can be chemically broken down into much simpler forms. c. Are composed ...

Satellite A orbits a planet at a distance d from the planet’s center with a centripetal acceleration a0. A second identical satellite B orbits the same planet at a distance 2d from the planet’s center with ...

Supposed instead of giving the mass an initial displacement of 5cm you gave it 10cm. How would this affect the period of oscillation and frequency of the oscillating system.

A student drops a rock from a bridge to the water 12.4 m below. With what speed does the rock strike the water? The acceleration of gravity is 9.8 m/s^2 . Answer in units of m/s

A 40-N crate rests on a rough horizontal floor. A 12-N horizontal force is then applied to it. If the coefficients of friction are μs = 0.5 and μk = 0.4, the magnitude of the frictional force on the crate is

Why two vectors cannot be divide? Explain and give a reasonable example

on a frictionless surface. a boy pushes a girl, causing a girl to accelerate at 3.2 m/s to the right. mb= 72 kg; mg=63 kg. find F exerted by boy on girl and F exerted by girl on boy. Find the acceleration of th ...

A VectorA is added to B=6i-8j the resultant vector is in the positive x direction and has a magnitude equal to A CALCULATE the direction of A

A ball thrown vertically upward from ground level hits the ground after 4seconds calculate the maximum height it reached during its journey

A sinusoidal wave of frequency f=100 hz propagates in a medium with a speed 12m/s.Give the expressions of the distance separating: A) two in-phase points B) two anti-phase points

Alex, a rescue pilot drops a survival kit while her plane is flying horizontally at an altitude of 1800.0 m with a forward velocity of 140.0 m/s. A group of lost Antarctica explorers is below on the ground. How ...

An apple falls from a tree and hits the ground 13.4 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8m/s

A train starts from rest at station A and is uniformly accelerated until it reaches speed of 108km/h. It then travel at this speed until the breaks are applied and the train is then uniformly retarded until it ...

A 3.95-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.80 m down the incline in 1.90 s. (a) Find the magnitude of the acceleration of the block. (b) Find the coefficient of k ...

An Eskimo returning from a successful friction trip pulls a sled loaded with salmon. The total mass of the sled and salmon is 50.0kg and the Eskimo exert a force of 120N on the sled by pulling on the rope. a) H ...

The muzzle speed for a Lee–Enfield rifle is 630 m s−1 . Suppose you fire this rifle at a target 700 m away and at the same level as the rifle. (a) In order to hit the target, you must aim at the barrel at a ...

A car accelerating at 2.5 m/s2 reaches a velocity of 30 m/s in 6 seconds. The car's initial velocity was m/s