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inn [45]
3 years ago
9

What are the diferent units that we typically use to measure average speed

Physics
1 answer:
Juli2301 [7.4K]3 years ago
6 0
Mph= miles per hour
kph= kilometers per hour
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3b. Grace drives her car with a constant speed
miskamm [114]

Time = (distance covered) / (speed)

Time = (224 mi) / (56 mi/hr)

<em>Time = 4 hours</em>

3 0
3 years ago
How long will it take an object to hit the ground if it is dropped from a hight of 176.4 meters ​
Oliga [24]

There's a short handy formula for that.

If the object is just dropped and not tossed, and it's not affected by air resistance on the way down, then the distance it falls in T seconds is

D = (1/2) (gravity) (T²)

For this problem . . .

176.4 m = (1/2) (9.8 m/s²) (T²)

Divide each side by  (4.9 m/s²) :

T² = (176.4 m) / (4.9 m/s²)

T² = (36 s²)

Take the square root of each side:

<em>T = 6 seconds</em>

5 0
3 years ago
A scientist is studying a sample of matter the matter has no definite shape or volume and it can conduct an electric current. Th
Anna35 [415]
D. plasma ..................
4 0
3 years ago
Read 2 more answers
A circular loop of wire lies in the plane of your screen. An increasing magnetic field (produced by another source) points out o
Rashid [163]

Answer:

clockwise direction

Explanation:

Direction of induced current is found with the help of Lenz's law . According to this law , the direction of induced current is such that it tries to neutralize or oppose the reason which creates this current .

In the given case , magnetic field is towards the viewer of the screen and it is increasing , so the induced current will have to create magnetic field in opposite to it . It means magnetic field will be created towards the screen into it . So the current will be induced in clockwise direction . This current will create magnetic field into the screen which will oppose increasing magnetic field out of screen .

7 0
3 years ago
If 30 N of force is exerted over an area of 20 m2, how much pressure is being applied?
Ludmilka [50]
Pressure= F/A
Given, F=30 N
Area=20 m^2
Putting values in formula,
Pressure = 30/20
=3/2
=1.5 Pascals
4 0
3 years ago
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