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diamong [38]
3 years ago
10

an suv is traveling at a speed of 18 m/s. If the suv has a mass of 1,550 kg, what force must be applied to stop it in 8 seconds?

Physics
2 answers:
vlada-n [284]3 years ago
6 0
Vo = 18m/s
Vt = 0  -> cause speed boat will stop in 8 s
m = 1550kg
t= 8s

F,,???/

Vt = Vo - a.t
0 = 18 - a.8
18 = a8
a=2,25m/s^2

F = m.a
F = 1550 . 2,25
F =3487,5N

a_sh-v [17]3 years ago
5 0

Answer:

Explanation:3,487.5 n

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State how you agree or disagree with the following statement. A good circuit cannot have internal resistance.​
Rashid [163]

Answer: I do

Explanation:

Resistance opposes current thereby reducing the amount of current that flows through a circuit. In other words, it leads to a loss of electrical energy.

Ideally speaking, a good circuit should have no internal resistance as this would lead to more energy having to be supplied to overcome that resistance. External resistance however, is not a bad thing. For instance, oxygen being removed from lightbulbs.

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Name two factors that can affect the function of an enzyme
myrzilka [38]

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1. pH

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Hope this helps

3 0
3 years ago
A bicyclist bikes the 90 mi to a city averaging a certain speed. The return trip is made at a speed that is 1 mph slower. Total
Lynna [10]

Answer:

his speeds while going to city is 10 mph and while his round trip the speed will be 9 mph

Explanation:

Let say the speed of the bicycle while he moves towards the city is "v"

now the speed of the round trip must be smaller by 1 mph

so its speed for round trip will be

v_2 = v - 1

now we know that total time of the motion is 19 hr

so we will have

t_1 = \frac{90}{v}

t_2 = \frac{90}{v - 1}

so we will have

t_1 + t_2 = 19 hr

\frac{90}{v} + \frac{90}{v-1} = 19

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5 0
3 years ago
How much must a woman weigh ( force) if the pressure she exerts while standing on one foot has an area of 0.6m squared exerts a
lions [1.4K]

Answer:

W = 9.6 N

Explanation:

Given that,

Area on 1 foot, A = 0.6 m²

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The pressure is given by force acting per unit area. So,

P=\dfrac{F}{A}\\\\P=\dfrac{W}{A}\\\\W=16\times 0.6\\\\W=9.6\ N

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4 0
3 years ago
A circuit consists of a 12 V battery connected across a single resistor. If the current in the circuit is
finlep [7]

Answer:

4 Ohms

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Apply the formula:

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You can change it the way you want to use for your purpose.

In this case...

R = V/I

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R = 4 Ohms (Ohm is the unit of measurement of eletrical resistance)

7 0
2 years ago
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