All categories

3 years ago

Which of these would most likely be a parts of a lab procedure?

Physics

2 answers:

vladimir2022 [97]3 years ago

6 0

C . Record the time to complete a chemical reaction

Shkiper50 [21]3 years ago

4 0

The answer is B! %%%%%%%%%

You might be interested in

. What is the kinetic energy of a 10 kg car that is moving 4 m/s?

Darya [45]

Answer:i belive the answer is E = 1/2 mv^2

hope this helps plz mark me as braliest

8 0

3 years ago

At the instant a traffic light turns green, a car starts with a constant acceleration of 1.3 m/s2. At the same instant a truck,

Bas_tet [7]

Answer:

(a) Distance traveled = 75.3846 m

(b) Velocity of car at that instant will be 14 m/sec

Explanation:

We have given acceleration of the car $a=1.3m/sec^2$

Initial velocity of the cart u = 0 m/sec

(a) According to second equation of motion we know that $s=ut+\frac{1}{2}at^2$

So distance traveled by car $s_c=0\times t+\frac{1}{2}\times 1.3t^2=0.65t^2$

As the truck is moving with constant speed

So distance traveled by truck $s_t=ut=7t$

As the truck overtakes the car

So $s_c=s_t$

$0.65t^2=7t$

$t=10.769sec$

So distance traveled $s_c=s_t=7\times 10.769=75.3846m$

(b) From second equation of motion we know that v = u+at

So v = 0+1.3×10.769 = 14 m /sec

7 0

3 years ago

Let’s calculate Ms Jackson’s acceleration as she comes to a stop. Remember that the formula for acceleration is the change in ve

Natali [406]

Answer:

$-1.5 m/s^2$

Explanation:

The acceleration of an object is equal to the change in velocity of the object divided by the time taken for the object to change the velocity:

$a=\frac{v-u}{t}$

where:

u is the initial velocity

v is the final velocity

t is the time taken for the velocity to change from u to v

For Ms Jackson in this problem, we have:

u = 6 m/s (initial velocity)

v = 0 m/s (final velocity)

t = 4 s (time elapsed)

Substituting into the equation, we find the acceleration:

$a=\frac{0-6}{4}=-1.5 m/s^2$

And the negative sign indicates that the direction of the acceleration is opposite to the direction of motion.

4 0

3 years ago

What is the speed of a wave with a frequency of 2 Hz and a wavelength of 87 m?

7nadin3 [17]

V = 174 m/s
<span>

hope this helped</span>

8 0

3 years ago

Read 2 more answers

At a busy intersection, a 1320-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with

Elza [17]

p = mv so this question pertains to conservation of momentum.

The momentum of the car is 1320*12 = 15840kgms^-1
For the sake of easiness and the fact negatives are annoying, I will assume east to be positive.

So we know 9.4m - 15840 = (1320+m)*1.5
9.4m - 15840 = 1980+1.5m

Rearranging to solve for m
7.9m = 17820
m = 2255.70 = 2300kg to 2sf

7 0

3 years ago