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aleksklad [387]

2 years ago

5

A projectile leaves the ground at an angle of 60° the horizontal.Its kinetic energy is E.Neglecting air resistance, find in term

s of E its kinetic energy at the highest point of the motion

1 answer:

NikAS [45]2 years ago

8 0

Answer:

I need a picture please

Explanation:

so that I can help you

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what of instead of other forms of energy we use sound energy to power every thing since sound is there every where

Bad White [126]

So is light, but we don't use light either to power anything, even though we do know how to capture them and extract their energy.

The reason we don't use sound or light as sources of energy is because the amount of energy in the sound and light that surrounds us is pitifully small ... in the milliwatts or microwatts, whereas the things we build and operate with oil or electricity need watts or kilowatts to function.

1 watt of sound will drive you out of the room and wake the neighbors, and 1 watt of light ... if it all enters your eye ... can permanently damage your sight.

4 0

3 years ago

An electric field of 260000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -

olga55 [171]

Answer:

Electric force on the charge will be equal to -1742000 N

Explanation:

We have given electric field at a point is E = 260000 N/C

And charge q = -6.7 C

We have to find the force on that charge

Force on the charge is equal to Force = charge × electric field ( multiplication of electric field and charge )

So force will be equal to $F=260000\times -6.7=-1742000N$

So electric force on the charge will be equal to -1742000 N

3 0

3 years ago

Potential energy is the ability to:

Ymorist [56]

Answer:

potential energy is the ability to do work

8 0

4 years ago

What is missing from this graph?<br><br> (A) A title.<br> (B) Axis labels.<br> (C) A trendline.

SIZIF [17.4K]

Axis labels. We don’t know what is being compared with the data

5 0

3 years ago

Read 2 more answers

A car goes around a curve of radius 60 m at a constant speed of 15 m/s. Which of the following values is the centripetal acceler

IRISSAK [1]

Answer:

3.75 m/s^2

Explanation:

The centripetal acceleration of an object in uniform circular motion is given by the equation:

$a=\frac{v^2}{r}$

where

v is the tangential speed of the object

r is the radius of the trajectory

In this problem, r = 60 m and v = 15 m/s, therefore the centripetal acceleration of the car is

$a=\frac{(15 m/s)^2}{60 m}=3.75 m/s^2$

4 0

3 years ago