# Physics

29Jan

### P waves move through the crust at a speed of about 6.5 km/s. How far will the P wave move in five seconds?

ericahemphill83 Physics 1 0
29Jan

### A radio station has a frequency of 90.9 megahertz (9.09 × 10^7 Hz). What is the wavelength of the radio waves the station emits from its radio tower?

Math5w4m Physics 1 0
29Jan

### There are three kinds of levers. What makes them different from each other?

LorrettaGelber752 Physics 2 0
29Jan

### In order to determine speed, you must know  a.time. c.Both (a) and (b) b.distance. d.None of the above

tenphel4604 Physics 1 0
29Jan

### What object circles around a planet

LakshmiSood Physics 2 0
29Jan

### How do u know if a wave is a mechanical wave?

monsebalon Physics 2 0
29Jan

### What happens when a ray is directed onto a mirror?

gotyjam1999 Physics 2 0
29Jan

### What makes a tennis ball bounce???? I need to know for my this for my review of literature for my science fair project!!!

lhlollipop1 Physics 2 0
29Jan

### mr knote a piano tuner taps his 440-hz tunning fork with a mallet. what is the period of the vibrating fork?

sophia5 Physics 1 0
29Jan

### A small 0.280-kg object moves on a frictionless horizontal table in a circular path of radius 4.10 m. The angular speed is 3.08 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. Someone under the table begins to pull the string downward to make the circle smaller. If the string will tolerate a tension of no more than 128 N, what is the radius of the smallest possible circle on which the object can move?

Abbyclaire Physics 1 0
29Jan

### How is a euglena like a plant cell? How is it like an animal cell? Like a plant cell: Like an animal cell:

lillymai08 Physics 1 0
29Jan

### The density of mercury is 13.6 g/mL. What is the volume of a 155-gram sample of mercury?

JessieHettich Physics 1 0
29Jan

### What is an example of a high amplitude sound, and an example of a low amplitude sound?

tykezzy Physics 2 0
29Jan

### A 4-kilogram ball moving at 8 m/sec to the right collides with a 1-kilogram ball at rest. After the collision, the 4-kilogram ball moves at 4.8 m/sec to the right. What is the velocity of the 1-kilogram ball?

Glmhayden11 Physics 1 0
29Jan

### Tim, with mass 53.5 kg, climbs a gymnasium rope a distance of 4.7 m. The acceleration of gravity is 9.8 m/s2 . How much potential energy does Tim gain? Answer in units of J

FredrickFellner Physics 1 0
29Jan

### Explain what it means when we describe an ecosystem as being in equilibrium

Oroak439 Physics 2 0
29Jan

### As a wave moves through a medium, particles are displaced and

Cepillo Physics 2 5
29Jan

### How do biotic and abiotic conditions change during secondary succession??

Oroak439 Physics 1 0
29Jan

### In what direction does friction always act?

latasha004 Physics 2 0
29Jan

### You drop your backpack out of a window from a height of 8.3 m. What is the impact speed of your backpack? A. 163 m/s B. 1.2 m/s C. 21.3 m/s D. 12.8 m/s

Rangata Physics 1 0
29Jan

### How do you calculate deceleration?

etheldrc Physics 2 0
29Jan

### What is meant by the term resultant force?

etheldrc Physics 2 0
29Jan

### what is a group of individuals of the same species living in the same geographic area

LavonMahanna Physics 1 0
29Jan

### A fan uses 7A when connected to a 110V line. If electric power costs 10 cents per kilowatt-hour in this location, what is the cost of running the fan for 13 hours?

nejsjs Physics 1 0
29Jan

### How are Global winds and Local winds similar?

Carnes001 Physics 1 0