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vaieri [72.5K]
3 years ago
14

Which type of electromagnetic waves have the highest frequency

Physics
1 answer:
Sonja [21]3 years ago
8 0
Gamma rays

they are at the end and their wave lengths are closer together
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A 10 kg rock falls 5 meters and hits the ground. Did the rock have any energy just
riadik2000 [5.3K]

Answer:

495.5 Joules

Explanation:

Given data

Mass= 10kg

Height= 5meters

g= 9.81m/s^2

Yes the rock will possess potential energy before it hits the ground

The potential energy is expressed as

PE=mgh

substitute

PE= 10*9.91*5

PE= 495.5 Joules

3 0
3 years ago
A force of 100 N acts upward. Resolve this force into 2 components; one that acts 30º north of west and one that acts 60º north
GrogVix [38]

To resolve these forces we have to make use of the sines and cosines.

To resolve this force in 30 degree north of west, the answer will be

100*sin(30)

The answer will be 50N

Now to resolve the force acting 60 degree north of east

100* cos(60)

The answer will be 50N.

This also adds to the total force acting that is 50+50=100N. This is the way forces are resolved according to their specified angles.

5 0
3 years ago
What is the kinetic energy of a 4 kg toy car moving at 5 m/s?
Mamont248 [21]

Answer:

50 J

Explanation:

<3

4 0
3 years ago
In 2.5 S, a Car increases its speed from 20.0m/s to 25.0 m/s what is the acceleration of the car​
Dima020 [189]

Answer:

2 m/s

Explanation:

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3 years ago
During a chemical reaction, increasing the temperature often
emmasim [6.3K]

Answer: Increase Reaction Rates

Explanation: Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction

3 0
4 years ago
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