# Physics

31Jan

### A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes 24.8 s to travel a certain distance. How long does it take to travel the same distance, again starting from rest, if the engines are fired simultaneously and the forces that they apply to the probe are perpendicular?

helminesaba144 Physics 1 0
30Jan

### Wh does a soccer ball that is quickly rolling across a grass field slow and finally stops rolling

TiffyLynn17 Physics 2 0
30Jan

### How many squares for three traits?

khalidachairunnisa Physics 1 0
30Jan

### Express fx and fy in terms of the length of the vector f and the angle θ in paired form

sassylexi Physics 1 0
30Jan

### How do air sacs of birds help make body lighter

janemcnutt10 Physics 1 0
30Jan

### A bookcase has a base of 1 m long and 0.5 m wide. It has a mass of 300kg. Find the pressure it exerts on the floor in kPa.

Jacrispy Physics 1 0
30Jan

### When ______ occurs the rock simpy breaks into smaller pieces

Varela372 Physics 2 0
30Jan

### Is speed or velocity more helpful to a pilot?

Dirollo Physics 2 0
30Jan

### Are the light waves reflecting off a red stop sign longer or shorter than the waves reflecting off a Violet colored jacket

lala01198 Physics 1 0
30Jan

### which one is an expression of distance in Sl units? A.)30miles B.)16 kilograms C.)24Feet D.)500 meters

shirleyque02 Physics 1 0
30Jan

### What two states of matter are fluids?

Myrka Physics 1 0
30Jan

### Why a reference point must be stationary?

xoxserinaa Physics 1 0
30Jan

### A 1200 kg automobile is traveling at a velocity of 100 m/s is its energy potential or kinetic? How much energy does it possess?

midway Physics 1 0
30Jan

### what is it about the  movable pulley that causes the difference in force?

barius3 Physics 1 0
30Jan

### People in the United States know that water boils at 212 Degrees Fahrenheit. In Europe, people know that water boils at 100 degrees Celsius. Is the water in the U.S. different than the water in Europe? What explains the two different temperatures

Sweetyazzy101 Physics 1 0
30Jan

### true or false the state of a medium helps determine the speed of sound passing through a medium

rere2 Physics 1 0
30Jan

30Jan

### An object of mass 2 kg has a linear momentum of magnitude 6 kg • m/s. What is this object’s kinetic energy?

drwhokunal Physics 1 0
30Jan

### An airplane travels 3,260 kilometers in 4 hours. What is the airplane’s average speed?

chessnut314 Physics 1 0
30Jan

### you measure or observe two events to occur at the same time one nearby and one further away. Which one did you actually see first?

3Shayshay Physics 2 0
30Jan

### the battery in  your cell phone is used to create sound waves.what type of energy is being consumed and what type of energy is being produced?

thefakejalen Physics 2 0
30Jan

### True or False along a divergent boundary, two plates slip past each other,moving in opposite directions.

Kamaile2001 Physics 1 0
30Jan

### 1.    How does the friction affect forward motion? Give an example.  2.    Describe two ways to change the frictional force between two solids surfaces. Change the lubrication between the two surfaces Change the normal force between the two surfaces 3.    How does air resistance affect the velocity of a falling object?  4.    What two sources of friction do you have to overcome when you are walking?  5.    If you push a chair across the floor at a constant velocity, how does the force of friction compare with the force exert? Explain. 6.    If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about Newton’s laws of motion to explain why the book doesn’t fall.

Toni352 Physics 1 1
30Jan

### TREBUCHETSwhat causes the shape of the trajectorywhy does it have that arch? why not a straight line?what are the major forces that cause this?

IsabelleG Physics 1 0
30Jan

### Derive a relation between Universal Gravitational Constant (G) and Acceleration due to gravity(g)?

thomsonchloe1 Physics 2 0