The strength of a field force changes with distance from the sourceof the field-stronger closer to the source, weaker farther away from the source. The source can be either a mass, a charged particle, or a magnetic pole.

8 0

3 years ago

Easy quiz easy points 7

Darya [45]

The answer is 2: hush

5 0

3 years ago

Read 2 more answers

What is the kinetic energy of the 80kg skydiver if he is moving at 60m/s? (Show the equation, show your work and answer with uni

s344n2d4d5 [400]

Answer:

The answer to your question is: Ke = 144000 Joules

Explanation:

Data

Kinetic energy = ?

mass = 80 kg

speed = 60 m/s

Equation

$Ke = \frac{1}{2} mv^{2}$

$Ke = \frac{1}{2} (80)(60)^{2}$

Ke = 144000 Joules

4 0

3 years ago

if you throw a rock straight up at a speed of 19m/s. How long goes it take the ball to reach its maximum height?

Scrat [10]

Answer:

It requires 1.9 seconds to reach maximum height.

Explanation:

As per given question,

Initial velocity (U) =19 m/s

Final velocity (V) = 0 m/s

$\text { Taking acceleration due to gravity }(a)=10 \mathrm{m} / \mathrm{s}^{2}$

Maximum height = S

Time taken is "t"

Calculating time taken to reach maximum height:

We know that time taken to reach the maximum height is calculated by using the formula V = U + at

Substitute the given values in the above equation.

Final velocity is “0” as there is no velocity at the maximum height.

$0=19+10 \times t$

$-19=10 \times t$

$\frac{-19}{10}=t$

t = 1.9 seconds.

The time taken to reach maximum height is 1.9 seconds.

Calculating maximum height:

$\text { Consider the equation } V^{2}-U^{2}=2 a S$

Solving the equation we will get the value of S

$0-19^{2}=2 \times(-10) \times \mathrm{S} .(-\text { is due to opposite of gravity) }$

-361 = -20S

Negative sign cancel both the sides.

$\mathrm{S}=\frac{361}{20}$

S = 18.05 m

Maximum height is 18.05 m .

3 0

3 years ago