3 years ago

Pendulum clocks generally run fast in winter and slow in summer

2 answers:

6 0

False. In the winter, the length of the pendulum decreases and its time period decreases. In the summer, the length of the pendulum increases and its time period increases.

Harman [31]3 years ago

5 0

If the question is true or false then the answer is true

You might be interested in

a 700k/g race car slowed down from 30m/s to 15m/s what is the impulse and what was the average force applied by the brakes

posledela

So impulse is a change in momentum.

Mass*(final velocity - initial velocity)

I dont think you will be able to find the average force with the given info because you need to know the time it takes for the car to slow down.

5 0

3 years ago

34. A train, starting from rest, accelerates along the platform at a uniform rate of 0.6 m/s2. A passenger standing on the platf

ira [324]

Answer:

4.08 s

Explanation:

Let the passenger took "t" time to catch the train

so in this case the total distance moved by the train + 5 m = total distance moved by the passenger

so we will have

distance moved by train is given as

$d_1 = \frac{1}{2}(0.6) t^2$

also the distance moved by passenger

$d_2 = \frac{1}{2}(1.2) t^2$

so we will have

$d_1 + 5 = d_2$

$0.3 t^2 + 5 = 0.6 t^2$

$0.3 t^2 = 5$

t = 4.08 s

3 0

3 years ago

What is mass loss and how does it figure in the death of a star? is the sun undergoing mass loss

Debora [2.8K]

111122 is the mass of the star

8 0

3 years ago

Which statement about convection is correct?

AlekseyPX

<span>D. Convection occurs when heated particles of a material flow toward areas having less thermal energy. This movement of particles can only occur in gases and liquids, not solids.</span>

7 0

3 years ago

Read 2 more answers

Which question requires the collection of data to answer it?

iren [92.7K]

Answer:

Explanation:

b, c, and d are all opinion based, a is the only one that you need factual evidence and observations.

3 0

3 years ago