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2 years ago

Which formulas show the relationships between momentum, mass, and velocity? Check all that apply.

Physics

2 answers:

Xelga [282]2 years ago

6 0

Answer:

p = mv

v = p/m

m = p/v

maksim [4K]2 years ago

4 0

An easy way to think about this is a triangle relationship: P
M V
Where p= momentum
m= mass
v= velocity
Formulas:
p= m x v
m= p/v
v= p/m
So all the choices are right

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Motion maps for two objects, Y and Z, are shown.

Vesna [10]

Answer:

The answer is B) 3 seconds

Explanation:

I just took the test on 2020 edge and got it right

5 0

2 years ago

What is the total flux φ that now passes through the cylindrical surface? enter a positive number if the net flux leaves the cyl

trasher [3.6K]

Net flux through the cylindrical surface is given as

$\phi = \frac{q}{epsilon_0}$

here q = enclosed charge in the surface

so here in order to find the value of q

$q = \lambda* L$

so now we have

$\phi = \frac{\lambda * L}{\epsilon_0}$

so this is the total flux

now by Gauss's law we can find the electric field

$\int E.dA = \phi$

$\int E.dA = \frac{\lambda * L}{\epsilon_0}$

$E* 2\pi rL = \frac{\lambda * L}{epsilon_0}$

$E = \frac{\lambda}{2\pi \epsilon_0 r}$

<em>by above expression we can find the electric field at required position</em>

8 0

2 years ago

Ronnie kicks a playground ball with an initial velocity of 16 m/s at an angle of 40° relative to the ground. What is the approxi

AleksandrR [38]

The horizontal component is calculated as:
Vhorizontal = V · cos(angle)

In your case Vhoriontal = 16 · cos(40) = 12.3 m/s

Answer: 12.3 m/s

7 0

2 years ago

Read 2 more answers

What is the magnitude of the relative angle φ

melomori [17]

Complete question is;

A ski jumper travels down a slope and leaves the ski track moving in the horizontal direction with a speed of 24 m/s. The landing incline below her falls off with a slope of θ = 59◦ . The acceleration of gravity is 9.8 m/s².

What is the magnitude of the relative angle φ with which the ski jumper hits the slope? Answer in units of ◦

Answer:

14.08°

Explanation:

The time covered will be given by the formula;

t = (2V_x•tan θ)/g

t = (2 × 24 × tan 59)/9.8

t = 8.152 s

Now, the slope of the flight path at the point of impact will be given by the formula;

tan α = V_y/V_x

We are given V_x = 24 m/s

V_y will be gotten from the formula;

v = gt

Thus;

V_y = gt

V_y = 9.8 × (8.152) = 78.89 m/s

Thus;

tan α = 78.89/24

tan α = 3.2871

α = tan^(-1) 3.2871

α = 73.08°

Thus ;

Relative angle φ = α - θ = 73.08 - 59 = 14.08°

6 0

2 years ago

the millersburg ferry (m=13000.0 kg loaded) puts its engines in full reverse and stops in 65 seconds. if the speed before brakin

kenny6666 [7]

The braking force is -400 N

Explanation:

We can solve this problem by using the impulse theorem, which states that the impulse applied on the ferry (the product of force and time) is equal to its change in momentum:

$F \Delta t = m(v-u)$