3 years ago

PLEASE HELP ME IF YOU KNOW STUFF ABOUT ENERGY TYSM

Physics

2 answers:

muminat3 years ago

7 0

Answer:
1. Kinetic
2. Joules
3. Temperature

Explanation: I think this is right.

Tomtit [17]3 years ago

5 0

Answer:

Kinetic Energy
Potential energy

You might be interested in

A cello string 0.75 m long has a 220 hz fundamental frequency. find the wave speed along the vibrating string. answer in units o

maxonik [38]

For fundamental frequency of a string to occur, the length of the string has to be half the wavelength. That is,

1/2y = L, where L = length of the string, y = wavelength.

Therefore,
y = 2L = 2*0.75 =1.5 m

Additionally,
y = v/f Where v = wave speed, and f = ferquncy

Then,
v = y*f = 1.5*220 = 330 m/s

4 0

3 years ago

A projectile, fired with unknown initial velocity, lands 20sec later on side of hill, 3000m away horizontally and 450m verticall

lorasvet [3.4K]

Explanation:

Given:

t = 20 seconds

x = 3000 m

y = 450 m

a) To find the vertical component of the initial velocity $v_{0y}$ , we can use the equation

$y = v_{0y}t - \frac{1}{2}gt^2$

Solving for $v_{0y}$ ,

$v_{0y} = \dfrac{y + \frac{1}{2}gt^2}{t}$

$\:\:\:\:\:\:\:=\dfrac{(450\:\text{m}) + \frac{1}{2}(9.8\:\text{m/s}^2)(20\:\text{s})^2}{(20\:\text{s})}$

$\:\:\:\:\:\:\:=120.5\:\text{m/s}$

b) We can solve for the horizontal component of the velocity $v_{0x}$ as

$x = v_{0x}t \Rightarrow v_{0x} = \dfrac{x}{t} = \dfrac{3000\:\text{m}}{20\:\text{s}}$

$v_{0x} = 150\:\text{m/s}$

4 0

3 years ago

Using the information given in the problem introduction and assuming that the third driver is telling the truth, determine wheth

Thepotemich [5.8K]

Answer:

The speed of driver N is 22.1594 m/s

Explanation:

the solution is in the attached Word file

Download docx

8 0

3 years ago

Big Bob is on his Harley and moving at 14.0m/s. He then accelerates to a velocity of 25m/s over a distance of 0.250 km. What is

Xelga [282]

As we know that it has all given data given as

$v_i = 14 m/s$

$v_f = 25 m/s$

distance moved = 0.250 km = 250 m

now we can use kinematics to find acceleration

$v_f^2 - v_i^2 = 2 a d$

$25^2 - 14^2 = 2 * a * 250$

$a = 0.86 m/s^2$

so it will accelerate at rate of 0.86 m/s^2

8 0

4 years ago

average speed = distance covered divided by travel time. do some algebra and multiply both sides of this relation by travel time

mars1129 [50]

Based on the scenario,
The thing that the result say about distance covered is :
it tells you that the distance covered is equal to the average speed times the travel time

hope this helps

6 0

4 years ago