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Papessa [141]
2 years ago
7

The potential energy of an object is 16.0 joules. The object is 145cm high.

Physics
1 answer:
coldgirl [10]2 years ago
8 0

Answer:

I don't know but you got this!!

You might be interested in
1. The statement about Newton's reflecting telescope contains 1 error. Find the error, write it, and
Jlenok [28]

Answer:

i. The error is the rough convex mirror.

ii. This should be replaced with a smooth convex morror.

Explanation:

Reflection is dependent on the surface involved and has two types; diffuse and specular. When the surface is rough, diffused reflection is observed. The surface causes a distortion of the incident light (the rays would be reflected at different angles to one another) after reflection. This makes some rays to interfere with one another. While specular reflection is observed with a smooth surface.

In the statement, the rough convex mirror would produce a distorted reflection which would produce diffused reflection. The effect is that few or no rays (depending on the degree of how rough the surfce is) would be reflected to the other smooth, flat diagonal mirror.

8 0
3 years ago
The greatest speed recorded by a baseball thrown by a pitcher was 162.3 km / h, obtained by Nolan Ryan in 1974. If the ball leav
Pepsi [2]

Answer:

0.96 m

Explanation:

First, convert km/h to m/s.

162.3 km/h × (1000 m/km) × (1 hr / 3600 s) = 45.08 m/s

Now find the time it takes to move 20 m horizontally.

Δx = v₀ t + ½ at²

20 m = (45.08 m/s) t + ½ (0 m/s²) t²

t = 0.4436 s

Finally, find how far the ball falls in that time.

Δy = v₀ t + ½ at²

Δy = (0 m/s) (0.4436 s) + ½ (-9.8 m/s²) (0.4436 s)²

Δy = -0.96 m

The ball will have fallen 0.96 meters.

3 0
3 years ago
A student makes a model of the sun-Earth system by swinging a ball around her head. Using this model, the student is trying to e
DedPeter [7]

Answer:

c. gravitational attraction between the sun and earth

8 0
3 years ago
Read 2 more answers
2. Which animal is a primary consumer in the Ethiopian Highlands?
Morgarella [4.7K]

Answer:

the walia ibex

Explanation:

i failed a quiz it sayed i hope it helps;)

7 0
2 years ago
Read 2 more answers
What is the velocity of a car that traveled a total of 100 kilometers south in 2.5 hours?
lesya [120]
Using the equation v(average)=x traveled/time
v = 100/2.5
You get 40 kilometers per hour

Hope this helped!
7 0
3 years ago
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