A shell was fired from ground level with an initial speed of 350 m/s at an angle of 30 degrees to the horizontal. Assuming there is no air resistance, calculate: a) its time of flight; b)...

A shell was fired from ground level with an initial speed of 350 m/s at an angle of 30 degrees to the horizontal. Assuming there is no air resistance, calculate: a) its time of flight; b)...

A bicycle accelerates from rest at 0.50 m/s^2. What is the velocity of the bicycle after 6.0 s?

In conductor electron of wire flow or electron produce by cells flow ? This is very tuff to me to understand please help us !

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 sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of 28 m/s2. If the dryer barrel has a radius of 27.6 cm, what is the tangential speed of the sock? Can...

Two objects with masses of 1.00 kg and 6.00 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string. (b) Determine the...

Two blocks on a frictionless horizontal surface are connected by a light string, where m1 = 11 kg and m2 = 22 kg. A force of 80 N is applied to the 22 kg block. (a) Determine the acceleration...

a styrofoam ball is attached to the bottom of a swimming pool with a nylon cord. the cord is 1.20 m long and the pool is 3.3 m. diameter of ball is 46cm. density of styroforam is 0.3 g/cc...

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...

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?

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

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...

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...

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?

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...