All categories

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Physics

1 answer:

Sav [38]3 years ago

4 0

Hi again!

The correct answer for the kinetic energy of the car is 484,000 joules.

We can find this by using the formula. The formula for kinetic energy is $\frac{1}{2}$ m $v^{2} \\$

Knowing this we can fill in the formula using the info we were provided. Doing this we get: $\frac{1}{2}$ (2,000 · $22^{2}$ )

$22^{2}$ = 484

2,000 · 484 = 968,000

$\frac{1}{2}$ · 968,000 = 484,000

_______________________________

Question 9: Anthony has more power than Angel

We can see Anthony gets done with the same work quicker than Angel. But they did the same amount of work, just Anthony was quicker. Power is the rate at which work is done. Knowing this we can see the answer is Anthony has more power than Angel.

I hope those answers help u!

Good luck! :)

You might be interested in

Recall that the spring constant is inversely proportional to the number of coils in the spring, or that shorter springs equate t

ruslelena [56]

Answer:

$x_1= 0.0425m$

Explanation:

Using the tension in the spring and the force of the tension can by describe by

T = kx

, T = mg

Therefore:

$m*g = k*x$

With two springs, let, T1 be the tension in each spring, x1 be the extension of each spring. The spring constant of each spring is 2k so:

$T_1 = 2k*x_1$

$2T_1 = m*g=4k x_1$

Solve to x1

$x_1=\frac{m*g}{4k}$

$x_1=\frac{k*x}{4*k}$

$x_1=\frac{x}{4}$

$x_1 = 0.170 / 4$

$x_1= 0.0425m$

7 0

3 years ago

Convert the following in to SI units without changing its values a. 4000 g b. 2.4 km

lana66690 [7]

hi <3

i believe i explained this answer properly in my last answer but it would be 4kg and 2400m as these are the SI units for these values.

hope this helps :)

3 0

3 years ago

Read 2 more answers

According to “The Cyclone,” who invented the Fourth of July?

Vilka [71]

A. Pecos Bill

According to “The Cyclone,” who invented the Fourth of July is PECOS BILL
NOT:
B. Alexander Hamilton
C. Sam Houston 
D. George Washington

8 0

3 years ago

Part complete How long must a simple pendulum be if it is to make exactly one swing per five seconds?

shtirl [24]

Answer:

$L=6.21m$

Explanation:

For the simple pendulum problem we need to remember that:

$\frac{d^{2}\theta}{dt^{2}}+\frac{g}{L}sin(\theta)=0$ ,

where $\theta$ is the angular position, t is time, g is the gravity, and L is the length of the pendulum. We also need to remember that there is a relationship between the angular frequency and the length of the pendulum: