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vladimir2022 [97]
3 years ago
14

Motion is a change in direction. True or False?

Physics
2 answers:
marta [7]3 years ago
6 0
Hi There!

The answer is false, because motion is change in position.

Have A Brainly Day!

Otrada [13]3 years ago
3 0
False... motion is a change in position. Not direction
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Verizon [17]

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Where,

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4 0
2 years ago
What is measured in watts that starts with a p
Nesterboy [21]
Power is measured in watts
6 0
3 years ago
List the two types of mechanical waves and define them.
Liula [17]
The two types of mechanical waves are longitudinal waves, and transversal waves.

7 0
3 years ago
1 point
marta [7]

Answer:

Let, R be the resistance of the heater wire. Since, two heater wires are of equal length their resistance is also same.

Hence, for series combination of resistances,

R

s

=2R

And for parallel combination of resistances,

R

p

=

2

R

Now, heat produced when they first connected in series is

H

s

=

R

s

V

2

where, V is voltage supplied to the heater.

H

s

=

2R

V

2

.....................................(1)

heat produced when they first connected in series is

H

p

=

R

p

V

2

H

p

=

2

R

V

2

H

p

=

R

2V

2

............................................(2)

From (1) and (2), we get

H

p

H

s

=

R

2V

2

2R

V

2

⇒

H

p

H

s

=

4

1

7 0
3 years ago
A 5000 kg truck traveling at 60 m/s stops in 5 seconds. How much friction was between the truck's tires and the ground? ​
oksano4ka [1.4K]

Answer:

60000N

Explanation:

acceleration is change in velocity

a =(v-u)/t where a is acceleration u is initial velocity and v is final velocity

a = (0-60)/5 = -60/5= - 12m/s^2

here minus sign shows that body is decelerating and force is  force of friction Now f = ma here f is force of friction m is mass and a is acceleration

f= 5000×- 12= -60000N

MINUS SIGN HERE SHOWS FORCE OF FRICTION

Hence force of friction is 60000N

8 0
4 years ago
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