All categories

4 years ago

A 5.00 kg crate is on a 21.0° hill.

Physics

1 answer:

mojhsa [17]4 years ago

8 0

Answer: 4575N

Explanation:

For y component, W = mgcosø

W = 500×9.8cos21

W = 4574.54N

Find the diagram in the attached file

You might be interested in

ONLY ANSWER IF YOU KNOW 100% BRAINLIEST TO THE FIRST CORRECT ANSWER, AND ANSWER ASAP!

saul85 [17]

Answer: Meter and second

5 0

2 years ago

Read 2 more answers

The motor of a ski boat generates an average power of 2.74 × 10^4 W when the boat is moving at a constant speed of 14.3 m/s. Whe

Roman55 [17]

Answer:

T = 4517.48 N

Explanation:

It is given that,

Average power of the motor, $P_1=2.74\times 10^4\ W$

Speed of the boat, $v_1=14.3\ m/s$

Force or tension acting on the motor at this point is given by :

$P=T\times v$

$T=\dfrac{P_1}{v_1}$

$T=\dfrac{2.74\times 10^4}{14.3}$

T = 1916.08 N

Average power generated by the engine, $P_2=9.2\times 10^4\ W$

Force or tension acting on the motor at this point is given by :

$P=T\times v$

$T=\dfrac{P_2}{v_2}$

$T=\dfrac{9.2\times 10^4}{14.3}$

T = 6433.56 N

So, the tension in the tow rope that is pulling the skier is, T = 6433.56 N - 1916.08 N = 4517.48 N

4 0

3 years ago

The ability to navigate, hunt, and communicate by electric current in water most likely helps make up for the effect of dark, mu

fgiga [73]

The ability to navigate, hunt, and communicate by electric current in water most likely helps make up for the effect of vision. The answer to your question is VISION.

If fish live in a dark, murky water, that means that their sense of vision is affected. In dark, murky water they could not see anything. So, fish that lives in this kind of water developed the ability to o navigate, hunt, and communicate by electric current in water. This ability is known as electroreception. Among fish, electroreception is present in some sharks and rays, and electric eels.

I hope that this is the answer that you were looking for and it has helped you.

6 0

4 years ago

Suppose that the design parameters of the satellite's control system require that the angular velocity of the satellite not exce

Stells [14]

Answer:

v=0.04m/s

Explanation:

To solve this problem we have to take into account the expression

$\omega=\frac{v}{r}$

where v and r are the magnitudes of the velocity and position vectors.

By calculating the magnitude of r and replacing w=0.02rad/s in the formula we have that

$|r|=\sqrt{(-1.18m)^2+(-0.9m)^2}=2.01m\\\\v=\omega r=(0.02\frac{rad}{s})(2.01m)=0.04\frac{m}{s}$

the maximum relative velocity is 0.04m/s

hope this helps!!

6 0

3 years ago

Read 2 more answers

A 9 v battery causes a current of 0.45 a through a resistor. (a) what is its resistance? (b) how many joules of energy does the

aliina [53]

$\displaystyle I = \dfrac{u}{R} \Rightarrow R = \dfrac{u}{I} = \dfrac{9 \ V}{0.45 \ A} = 20 \ \Omega. \newline
P = \dfrac{\Delta uq}{\Delta t} = Iu = 0.45 \ A \cdot 9 \ V = 4.05 \ \dfrac{J}{s} = 14580 \ \dfrac{J}{h} = 14.58 \ \dfrac{kJ}{h}.$

7 0

3 years ago