After a 1.30 x 10^2kg astronaut (incl. equipment) connects a safety line (length = 22.0m) to herself and to the spacecraft (mass = 2.80 x 10^3kg), she pushes against the craft and moves away at a...

After a 1.30 x 10^2kg astronaut (incl. equipment) connects a safety line (length = 22.0m) to herself and to the spacecraft (mass = 2.80 x 10^3kg), she pushes against the craft and moves away at a...

Alpha rays are more energetic than gamma rays, so shouldn't they have a higher frequency than gamma rays, too since hf=E?

Estimate the isothermal compressibility of a dry gas for use at 4,200 psia using the following data taken at 120 oF. Pressure Z factor 6000 1.1252 5600 1.0736 5200 1...

Hi there, I I have a question about Physics/ chemistry. If I have a bag of iron oxide(lll) and powdered aluminium in the ratio of 3:1 totalling 72g, with 54g being Fe2O3 and 18g of 2Al, what...

I know that volume or weight over volume percent gives you the concentration. So I think that the slope signifies the concentration?

The force of gravity between two small masses A and B when placed very near each other is 3.24x10^-7 N. What will the force between these objects be if both of their masses are doubled and the distance...

When and object is dropped from a height of 20.0 m above the surface of Planet Z, it will fall 5.00 m during the 2nd second of the fall. What is the acceleration on Planet Z?

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...

Please, I need help with this problem. I have tried different ways and can't get the right answer. A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There...

There are given 3 source charges Q1= Q, Q2=Q and Q3= 2Q. Q3 is on top of triangle and Q1 and Q2 on bottom. The distance of q1=q2=q3= X where to place 4th Q in way electric field equals to 0...

how much kinetic energy does the block have when it reaches the bottom? Acceleration due to gravity is g = 9.8 m/s2.

I'm editing this problem because I was able to get a couple of the answers, but I still need help on the rest. An electromagnatic wave is traveling in vacuum with frequency 7 x 1014 Hz. The wave has...

A series RCL circuit driven at angular frequency w = 597 rad/s has a capacitive reactance XC = 864 W, an inductive reactance XL = 599 W and a resistance R = 357 W. The resulting oscillating current...

Physics test Prep

A car is traveling at 100 kilometers per hour. One minute later the car is traveling at 120 kilometers per hour. What is the average acceleration or the car?

On vacation, your 1500kg car pulls a 600kg trailer away from the stoplight with an acceleration of 2.0m/s^2, What is the net force exerted on the trailer, what force does the trailer exert on the...

a team of four people went on a river rafting excursion to gangotri but unforturbnately theri boat capsized in the roaring river it was reported by thelocal people (the eye witness to the incident)...

A car was stopped at a red light. When the light turns green, the car reaches a speed of 22 miles per hour in 3 seconds. What is the acceleration, to 1 decimal place?

What is the final speed of a car that accelerates at 20 ft/s2 for 2 seconds if it's initial speed was 33 miles per hour, to 1 decimal place?

Part a is as follows: A long cylindrical insulator has a uniform charge density of 1.89 μC/m3 and a radius of 5 cm. What is the electric field inside the insulator at a distance of 4 cm?...