How high up is a 3.00 kg object that has 300. J of energy

From the motion of the toy car, the reference point of this scenario is the starting position of the car.

What is reference point?

The reference point of an object is defined as the position through the measurement of an object is taken.

In studying the motion of a toy car, if she places the car in the middle of a ramp and releases it, we can conclude that the reference point of this scenario is the starting position of the car.

The starting position of the car will serve as point of reference because, the distance, speed, and time of motion of the car can be obtained with respect to the starting point.

Learn more about reference point here: brainly.com/question/2037494

#SPJ5

Answer;

Velocity and wavelength are directly proportional when frequency is kept constant.

Explanation;

• Frequency of a wave is the number of complete oscillations made by a given wave in one second.
• Wavelength on the other hand, is the distance between two successful crests or troughs in a transverse wave or two successful rarefactions or compressions in a longitudinal waves.
• The speed of a wave is given by the product of the frequency of a wave and the wavelength.
• Speed = Frequency × wavelength,
• Therefore, if frequency is kept constant, then the speed of a wave is directly proportional to the wavelength, such that an increase in wavelength increases the speed of the wave and vice versa.

Yo sup??

potential energy is given by

U=mgh

mg=5 N

U1=5*1=5 J

U2=5*1.5=7.5 J

U3=5*2=10 J

Hope this helps.

Answer:

frictional

Explanation: