# Physics

31Jan

### What is a meteorologist ?

LuminEyez Physics 2 0
31Jan

ayv Physics 1 0
31Jan

### Q: What happens when cold air approaches a body of warm air?     Optional Answers:      A. The Warm air rises.     B. The warm and cold air both disappear.      C. The warm and cold air mix immediately.     D. The cold air rises.

juliagrasu Physics 2 0
31Jan

### Q: Through which of the following ways can heat be transferred?  Optional Answer:   A.  By direct or indirect contact between objects at different temperatures.   B.  Only by direct contact between objects at different temperatures.   C.  Only by indirect contact between objects at different temperatures.   D.  Heat can never be transferred between objects.

juliagrasu Physics 1 0
31Jan

### Q: The picture above shows a frying pan. Why are frying pans usually made out of metal?   Optional Answer:  A. Because metal is a good conductor of heat.  B. Because metal is a poor conductor of electricity.  C. Because metal is  a good conductor of electricity.  D.  Because metal is  a poor conductor of heat.

juliagrasu Physics 2 0
31Jan

### sometimes rock has both large and small mineral crystals.How can you explain this?

oscarmendiola Physics 2 0
31Jan

### explain how geographic features can cause local wind

Leslee119 Physics 1 0
31Jan

### explain how geographic features can cause local winds?

Leslee119 Physics 1 0
31Jan

### in what ways is climate controlled by the sun and the water cycle ?

jshomo Physics 1 0
31Jan

### If the speed of an object is tripled, its kinetic energy will be

Brenda2579 Physics 1 0
31Jan

### A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s , as shown in the figure . The stairs are angled at 45o pointing in the direction of motion as shown.             Write the vector velocity of the passenger relative to the water. Express your answer using two significant figures. Express your answer in terms of the unit vectors i and j.

jordon792 Physics 1 1
31Jan

### two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple and roll together with a speed of

MeaganE Physics 1 0
31Jan

### how could you compare the energy carried in two different longitudinal waves

tjharville Physics 2 0
31Jan

### You are standing on a scale inside an elevator. The scale reads 13 less than your weight. What is the acceleration of the elevator?

jakehazley Physics 1 0
31Jan

### A girl sitting on a merry-go-round moves counterclockwise through an arc length of 3.15 m. If the girl’s angular displacement is 1.82 rad, how far is she from the center of the merry-go-round? Answer in units of m

DylanBossy Physics 1 0
31Jan

### A turntable is designed to acquire an angular velocity of 32.4 rev/s in 0.5 s, starting from rest. Find the average angular acceleration of the turntable during the 0.5 s period. Answer in units of rad/s2

DylanBossy Physics 1 0
31Jan

### Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.8 m/s2 for 3.3 seconds. It then continues at a constant speed for 9.8 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 255.79 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop. 3)How far does the blue car travel before its brakes are applied to slow down?

senthilsmart Physics 1 0
31Jan

### What is a lunar eclipse?

Burbach963 Physics 2 0
31Jan

### What is "frame of reference?"

Susan606 Physics 1 0
31Jan

### How many protons does carbon have?

stepsock101 Physics 2 0
31Jan

### A cheetah is hunting. Its prey runs for 7.4 s at a constant velocity of 11.3 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?

CottonCandy17 Physics 1 0
31Jan

sandykyle2003 Physics 1 0
31Jan

### Suppose a magnetic reversal accoured today . How would new rocks at mid ocean ridges  differ from rocks that formed last year

claudiabreaux Physics 1 0
31Jan

### what is the difference in the charges on a balloon rubbed in your hair and a glass  rod rubbed with silk? why?

ajhanicker Physics 1 0
31Jan

### Why can I say that air drag is a negative force

Coralys Physics 1 0