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3 years ago

Which describes a feature of the physical properties of all substances

Physics

2 answers:

GrogVix [38]3 years ago

8 0

Physical property, that means that it is not transpaerent, and can touch

Anna [14]3 years ago

6 0

Answer:

DOES NOT CHANGE THE IDENTITY OF THE SUBSTANCE

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What is the purpose of the magnetic field in a cathode ray tube?

andre [41]

Answer:

In order to determine if the cathode ray consisted of charged particles, Thomson used magnets and charged plates to deflect the cathode ray. He observed that cathode rays were deflected by a magnetic field in the same manner as a wire carrying an electric current, which was known to be negatively charged.

Explanation:

4 0

3 years ago

A cart is set up as shown below, with three fans directed to the left and two of the fans running. The motion of the cart is rep

sasho [114]

The force of 3 fans would be grater than the force of 2 fans.
So the cart would have greater acceleration to the right, and
it would reach a greater speed to the right. The resulting
'v' vs 't' graph would have a greater positive slope, and would
be higher at any given time.

You might get a better answer if you let us actually SEE the
picture and the graph.

5 0

4 years ago

Read 2 more answers

a motorist traveling at 18m/s approaches traffic lights when he is 30 m from the stop line they turn red it takes 0.7 s before h

Gelneren [198K]

Answer:

35.2m

Explanation:

S= V^2 - U^2 ÷ 2A

S= (0) - (18) ÷ 2(4.6)

S= 324 ÷ 92

S= 35.2m

7 0

3 years ago

A locomotive is accelerating at 1.6 m/s2. it passes through a 20.0-m-wide crossing in a time of 2.4 s. after the locomotive leav

ladessa [460]

<u>Answer:</u>

After reaching crossing locomotive takes 17.6 seconds to reach velocity 32 m/s.

<u>Explanation:</u>

Acceleration of locomotive = 1.6 $m/s^2$

Time at which it crosses crossing = 2.4 seconds.

We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

When it reaches 32 m/s, v = 32 m/s, u = 0 m/s, a= 1.6 $m/s^2$ seconds.

32 = 0 + 1.6 * t

t = 20 seconds.

So locomotive's velocity is 32 m/s after 20 seconds and it reaches crossing at 2.4 seconds.

So after reaching crossing it takes 17.6 seconds to reach velocity 32 m/s.

6 0

4 years ago

Read 2 more answers

A distance of 2.00 mm separates two objects of equal mass. If it gravitational force between them is 0.0104 N, find the mass of

Radda [10]

Put values in this formula, you will get the answer.

F=Gm^2/r^2

G=6.67X10^-11

8 0

4 years ago